Pelican Parts
BMW Parts Catalog Accessories Catalog BMW How To Articles BMW Tech Forums
Call Pelican Parts at 888-280-7799
View Recent Cars  |Shopping Cart Cart | Project List | Order Status | Help
Bookmark and Share

Pelican Technical Article:

BMW Fuel Pump Testing

Nick Czerula

Time:

3 hours3 hrs

Tab:

$300

Talent:

*****

Tools:

Phillips & flathead screwdriver, 10mm socket, DVOM, Test light

Applicable Models:

BMW 325i Sedan (2006)
BMW 325xi Sedan/Wagon (2006)
BMW 328i Coupe/Conv (2007-13)
BMW 328i xDrive Coupe (2009-13)
BMW 328i xDrive Sedan (2009-11)
BMW 328i xDrive Wagon (2009-12)
BMW 328i/xi Sedan (2007-11)
BMW 328i/xi Wagon (2007-12)
BMW 328xi Coupe (2007-13)
BMW 330i/xi Sedan (2006)
BMW 335d/i/xi Sedan (2007-11)
BMW 335i xDrive Coupe (2009-13)
BMW 335i xDrive Sedan (2009-11)
BMW 335i/is Coupe/Conv (2007-13)
BMW 335xi Coupe (2007-13)

Parts Required:

Fuel pump, fuel pump sealing O-ring

Hot Tip:

Check and clear fault codes when done using a BMW scan tool.

Performance Gain:

Restoring engine performance

Complementary Modification:

Replace fuel pump if faulty

A faulty fuel pump can cause poor engine performance and hard starting problems. When they fail completely you may be left with an engine that doesn't start. If you suspect your fuel pump has failed, you can confirm the fuel pump is received the correct voltage when commanded ON by the fuel pump control module using a digital volt ohm meter (DVOM). If the correct voltage is present, but pump does not activate, it is likely faulty. Use the DVOM in conjunction with a wiring diagram to determine the correct terminals for testing. You can access the fuel pump electrical connector and terminals under the rear seat cushion, below an access panel. On E90 models, a fuel pump control module is used in place on the fuel pump relay. The fuel pump module can be activated for testing using a BMW scan tool, if you do not have access to a BMW scan tool, attempting to start the vehicle will also activate the fuel pump control module, the module will send control voltage to the pump. Instead of seeing what we are used to, battery volts supplied to the fuel pump, we now see a voltage dependent on fuel supply demand from the DME. When testing, I usually see about 10 volts being sent to the fuel pump. In this tech article, I will go over how to test fuel pressure and volume. You will need an assistant to press the Start Stop button during the testing procedures.

The fuel pump is located in the right side of the fuel tank.

Pressure testing:

Remove engine cover over fuel injectors. See our tech article on engine cover removing.

First thing you have to do is remove the fuel test port cap.
Figure 1

First thing you have to do is remove the fuel test port cap. (green arrow)

Next, install the fuel pressure gauge connecting line (green arrow).
Figure 2

Next, install the fuel pressure gauge connecting line (green arrow). Be sure that all test hoses are installed and routed properly. Then install the fuel pressure gauge.

Next, start or attempt to start engine.
Figure 3

Next, start or attempt to start engine. Fuel pressure should be 5 bar (72.5 psi). Once you test pressure. Recharge fuel system by cycling key or running fuel pump, note fuel pressure. Then allow fuel system to sit under pressure for 15 minutes. Pressure should drop no more than 0.5 bar in that time period. If it drops you could have a faulty fuel pump check valve or a leak in the fuel system. Electrical testing Working in rear of vehicle interior; grab corner of rear seat cushion and pull up to detach locking tabs. See our tech article on Seats, removing.

Once you have removed the rear seat, peel the carpet away from the right side rear seat cushion area of body.
Figure 4

Once you have removed the rear seat, peel the carpet away from the right side rear seat cushion area of body. (green arrow)

Hold the carpet out of the way, and then remove four 10mm nuts from access panel.
Figure 5

Hold the carpet out of the way, and then remove four 10mm nuts from access panel. (green arrows)

Remove access panel lid from body by lifting up.
Figure 6

Remove access panel lid from body by lifting up. Move away enough to access electrical connector on fuel pump module.

Now that you have access to the fuel pump terminals, you will connect your DVOM to the terminals by backprobing.
Figure 7

Now that you have access to the fuel pump terminals, you will connect your DVOM to the terminals by backprobing. Connect DVOM across fuel pump terminals. Green arrow points to where positive lead goes, Yellow arrow points to where black lead goes.

Press Start Stop key like you wanted to start the engine, allow engine to crank if it doesn't start, DVOM should read around 10 volts.
Figure 8

Press Start Stop key like you wanted to start the engine, allow engine to crank if it doesn't start, DVOM should read around 10 volts. If no voltage is found, check ground to fuel pump and fuel pump fuse F70 in the junction box. Double check the fuse number with your model specific information. When Start button is pressed, fuel pump will receive voltage for 3-5 seconds, if engine doesn't start.

I suggest load testing using a test light and a DVOM.
Figure 9

I suggest load testing using a test light and a DVOM. Connect DVOM across fuel pump electrical connector terminals and take a reading, it should read battery volts when key is turned ON. Then connect an incandescent bulb style test light to battery ground and touch the test light probe tip the positive wire you are backprobing with DVOM. Your reading should hold steady, a maximum drop in voltage of 0.5 volts is OK. Anything more is a problem. In this photo, voltage head steady at current fuel pump demand.

To confirm a pump can supply fuel pressure to the fuel rail, you can manually activate the fuel pump.
Figure 10

To confirm a pump can supply fuel pressure to the fuel rail, you can manually activate the fuel pump. Use a fused jumper lead set to battery positive (+) and battery negative (-) and run pump. Green arrow points to where positive (+) lead goes, Yellow arrow points to where negative (-) lead goes.

Bookmark and Share
Comments and Suggestions:
FzAll Comments: Here's the round connector Dave M mentioned earlier. Rotate outer ring 25 degrees anti clockwise to unlock the connector and pull up, some wiggling is necessary.

Question Nick: How does one test the last step with this type of connector?

Thanks!
November 12, 2017
FzAll Comments: I need to eliminate fuel pump as an issue to start my engine, there's cranking under the hood but the engine won't start. Car: 2010 328i convertible, N51 engine Ista does not show any error codes after I erased all the fault memory to reproduce the errors but no errors are produced. The previous errors were related to DSC and Park assist, DSC S0085 and PDC S 0185 resp. I'm suspecting, it was result of car getting towed but I could be wrong. Inpa shows CAS A10A error code consistently.

The car was stopped at the red light and it stalled right there, not starting for two weeks.

I understand how to test fuel pressure from other set of instructions but how do I check volume and quality that Nick has been recommending commonly.

Thanks!
November 12, 2017
Roy Comments: Hi Guys, BMW 325i e90 2007. Wont start. Key on the power to fuel pump is intermittent on/ off from the relay control.Does that mean the fuel pump regulator in the fuel tank in leaking back . Test gauge on fuel rail when this is intermittent 55/72 lbs. Some times when the key is one you cant here the pump cutting in/out and it starts and the fuel pressure maintains @ 72 lbs . Reg Roy
November 6, 2017
  Followup from the Pelican Staff: Key on, fuel pump cycles on then off, not constant. if you have fuel pressure and volume, the pump is likely ok. - Nick at Pelican Parts  
maravim1978 Comments: Hi, Nick
Yesterday I got this code P1415 on the 2006 BMW 325i E90.
I did some research and this is what I came up with.
Possible causes:
-Faulty Mass Air Flow Sensor
-Vacuum leak induction system
-Mass Air Flow Sensor harness is open or shorted
-Mass Air Flow Sensor circuit poor electrical connection
Is this correct? I thought that code was for the 2nd injection air pump.

Read more: https://www.autocodes.com/p1415_bmw.html
October 20, 2017
  Followup from the Pelican Staff: Might be a fault code for secondary air mass air flow sensor. Check the secondary air pump inlet for a small mass air flow sensor. If the pump is running and the fault is present, the sensor may be faulty. - Nick at Pelican Parts  
maravim1978 Comments: Hi, and thanks again Nick. I will check the timing.
October 13, 2017
  Followup from the Pelican Staff: No problem. - Nick at Pelican Parts  
maravim1978 Comments: Hi Nick, and thanks again.
I cracked open the butterfly on throttle body on the 2006 BMW 325i E90 like you said, but did work. Before checking compression, since I removed back seat. I disconnected the pressure regulator left side, stepping on the gas pedal all the way, and the car started rough at 1000 rpms for about 1 min several times, disconnecting did not affect. Then, disconnected fuel pump connector right side and the car crank but did not start at all. Could it be a bad fuel pressure regulator?
Compression test cylinder:
1 110 psi
2 110 psi
3 120 psi
4 115 psi
5 100 psi
6 100 psi
September 29, 2017
  Followup from the Pelican Staff: Your compression numbers are too low. Timing may have jumped. - Nick at Pelican Parts  
maravim1978 Comments: Hi Nick,At first I got these codes:P14449 -Diagnostic module tank leakage DM-TL Pump current too high.
P0306 - Cylinder 6 misfire
P0303 -Cylinder 3 misfire
P0302 - Cylinder 2 misfire
P0300 - Random misfire
Erased old codes, I replace new spark plugs and now I only get these codes: P0306 and the P14449.

September 28, 2017
  Followup from the Pelican Staff: P1449 is for the DMTL pump for the evap canister. It is likely faulty, very common, I would replace it. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.


For the cyl 6 misfire, I would check spark, fuel and compression on all cylinders. This will help you set a baseline for good verse bad. - Nick at Pelican Parts
 
maravim1978 Comments: Hi Nick, thanks again. I tried cracking the throttle body, but the bmw e90 didn't stay on, it still stalls. The car is doing something weird; I step on the gas pedal all the way down for 30 seconds with ignition on, then I'm able to rev the engine up to 40,000 rpms for 2 seconds. Sometimes I'm abel to maintain up 1,000 rpms for 1 minute engine running rough then stalling.
September 27, 2017
  Followup from the Pelican Staff: I can't imagine there isn't a fault code stored. COnfirm there are no large vacuum leaks or excessive crankcase pressure.

Next confirm spark and fuel are present when engine stalls. if so, the DME may be having trouble determining or controlling idle speed via the throttle housing. - Nick at Pelican Parts
 
maravim1978 Comments: Thanks Nick,
I have not tried that.
The 2006 bmw 325i e90 has a brand new throttle body, I saw on you tube that if you open it manually you need to reprogram the computer.
What I did yesterday was, remove air duct to expose throttle body. Then, had someone step on gas pedal with ignition on, with car not running. I noticed the butterfly does not open. Then had the person turn car on, and the butterfly open all the way, then close immediately stalling the car.
September 27, 2017
  Followup from the Pelican Staff: Without the duct connected, it will not run. - Nick at Pelican Parts  
maravim1978 Comments: Hi,Guys I have a 2006 BMW 325I E90 148,000 miles.
The car starts rough for 4 to 5 seconds then stalls and dies. I've replaced:Coils, spark plugs, throttle body, oil separator, electric pedal.
I get spark to all coils. I checked fuel pressure and I get 72 psi, but soon the car stalls and dies it quickly drops to 64 psi. Help, could it be bad fuel pump or pressure regulator.
September 25, 2017
  Followup from the Pelican Staff: Are injectors causing stall or air delivery? See if cracking the throttle open keeps it running. - Nick at Pelican Parts  
kolo banty Comments: hi guys..mi 323i cant give me a spark.it cranks and again the ecu can,t communicate with diagonising kit.what could be the problem.ive cut a new key,sent the computer for check ups and is ok..what could be the problem?
August 29, 2017
  Followup from the Pelican Staff: if there is no fuel injector pulse, the vehicle start could be blocked by theft (EWS). - Nick at Pelican Parts  
edqu3 Comments: Is there a way to rule out fuel related issues on a 325i e90 2006?
im currently having a crank but no start issue.
August 16, 2017
  Followup from the Pelican Staff: Yes. test fuel pressure and volume. Then test fuel injector pulse using a lab scope. - Nick at Pelican Parts  
Gavin Comments: Hi
I have 2007 bmw 320i e90 but there is no fuse in the f70 location can you please tell me if there should be one and if not where is mine located.
August 3, 2017
  Followup from the Pelican Staff: I would suggest you grab a repair manual, you should own one. It will have the wiring and fuse info. I don't have that info to share.

Give our parts specialists a call at 1-888-280-7799.
- Nick at Pelican Parts
 
leo Comments: Which side fuel pump has the non return check valve?
July 24, 2017
  Followup from the Pelican Staff: The electrical pump does, on the top of it. - Nick at Pelican Parts  
WJM Comments: Do you have a part # for the fuel pressure test kit adapter to fit an e90 2010 328i.
July 21, 2017
  Followup from the Pelican Staff: I use a universal kit, it covers all makes and models. http://www.pelicanparts.com/bmw/catalog/shopcart/TOOL/POR_TOOL_WTD049_pg10.htm #75 - Nick at Pelican Parts  
nclsamy Comments: Hello, friend.

Do you know if the N43 engine has a Low Pressure Fuel Pump?

I keep having this erros and the car is barely driveable.
29F3 - Fuel Low Pressure Sensor Electric
2A2D Fuel Low pressure, fuel pressure


Thank you. Appreciate your time!
July 15, 2017
  Followup from the Pelican Staff: You do have an in-tank fuel pump. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Vin Comments: sending pic
June 26, 2017
  Followup from the Pelican Staff: thx - Nick at Pelican Parts  
Vin Comments: Volt tested from module to pump and it varied from 9.5 to 11 volts from idling to 3000rpms. Oddly enough, today it ran for 3 hours without stopping. Scratched my head, shut car off. Then re-started, car died after 5 minutes just like it has in the past. The back of module was hot to touch through the whole 3 hour session. Maybe it is supposed to get hot since it is backed by heat sink plate. But at this point I'm dumfounded. The module read 0.0 v to pump at shut down. But why a 3 hour run, then re-start and failure after 5 minutes. Help.
June 26, 2017
  Followup from the Pelican Staff: Not sure why it would fail at any time, if faulty, it will go without notice when the fault occurs. What was voltage when it failed? Was pump being commanded on? if not, the module is likely faulty.

- Nick at Pelican Parts
 
Kulakster09 Comments: Im having the same problem as a couple people on here on my 2011 328i. The car would start and run fine for about 15-20min then die and show on the screen that its having fuel pump problems.

Questions to VIN, Cody34562, ST3F40, Todd or HuskMakki, have any you guys figured out the problem on your car? Seems like you are having the same issue as me.
June 22, 2017
  Followup from the Pelican Staff: You will have to do some testing. If the fuel pump module is being commanded on and the fuel pump is not being activated, the module is at fault. - Nick at Pelican Parts  
Shane Comments: Do you need to reprogram hpfp to car if you change it
June 7, 2017
  Followup from the Pelican Staff: No. - Nick at Pelican Parts  
Vin Comments: Thanks Nick, Can you tell me where the module is on the 2011 328x? I know the pump is accessible from under back seat. Is the module in trink somewhere? And if module is bad, can I replace it and does it have to be programmed as I have been told? I don't have that device.
June 7, 2017
  Followup from the Pelican Staff: It should be under the passenger rear side seat cushion. - Nick at Pelican Parts  
My328i Comments: i am having a similar issues as few of these guy. Nice weather started and my stall issues returned. Went threw it all last summer had fuel pump replaced buy dealer. Now weather is getting warm and stall is back. When car dies i unplugged EKPM3 unit plugged it right back in and the car starts right up. I did notice the the part is HOT. I removed bolster and turned windows down to get air on it and no stall. Put bolster back on and put window up and car stalls. EKP M3 is really Hot to the touch. Bought used matching # and same issue.Help!!!!
June 5, 2017
  Followup from the Pelican Staff: What is pump current? Possible it is drawing too much or the ground to module is faulty. - Nick at Pelican Parts  
Vin Comments: I have a 2011 328xi and starts and runs fine until I get on freeway for 15-20 minutes, then car dies fast with fuel pump failure notification. If I wait 15-20 minutes it will restart. I have been caught on the freeway 3 times now. Dealer found no codes, strange, but should I check module or pump. Obviously, heat or voltage is the issue. The latest tech to scan car came up with fault codes 6292 and 6293. Unfortunately, he wouldn't do job cause he can't program the part cause he doesn't have tool. He referred me to dealer. I don't trust dealer and don't know if it's the pump or module.
Thoughts please. Vin
May 30, 2017
  Followup from the Pelican Staff: Hard to say without test results. When the vehicle doesn't run,
check if the module is trying to activate the pump, if not, replace module.- Nick at Pelican Parts
 
Vin Comments: Hi. I have a 2011 328xi and starts and runs fine until I get on freeway for 15-20 minutes, then car dies fast with fuel pump failure notification. If I wait 15-20 minutes it will restart. I have been caught on the freeway 3 times now. Dealer found no codes, strange, but should I check module or pump. Obviously, heat or voltage is the issue. Thoughts please. Vince
May 30, 2017
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
If you have no pressure, check if the pump getting power and ground to run. - Nick at Pelican Parts
 
HB waves Comments: 2011 E90 328i. Shop diagnosed my car and said I needed a new fuel pump. I replaced it, but my gas gauge says tank is empty. Could I have gotten a bad fuel pump? I researched that a fuel pump module is also needed with a fuel pump. Could this be what I am missing? If so, I could you tell me where the fuel pump module is located?Thanks!
May 19, 2017
  Followup from the Pelican Staff: You may need a fuel level sending unit. The pump module should have come with it. i would check with the shop. They will know what they installed. - Nick at Pelican Parts  
Shane Comments: Have change all fuEl pumps on the car
May 17, 2017
  Followup from the Pelican Staff: What fault codes are stored? - Nick at Pelican Parts  
Cody34562 Comments: Hi, I have a 2009 328xi..car will randomly stall and give me a "fuel pump malfunction, continued driving may be possible etc..." If I don't touch it after it stalls, it starts in usually about 10-15 minutes. If I try to start it sooner than that, it won't go and I'll end up having to wait longer. It's usually fine after it starts back up, but the other day it happened 3 times withing an hour. This only happens on nice days where it's around 65°F+..would you be leaning more towards the ekp or the fuel pump itself? Thanks for your response
May 15, 2017
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
If fuel pressure drops, confirm the in-tank pump us getting power, If so, the pump is faulty. - Nick at Pelican Parts
 
Shane Comments: Hi iv got a 2009 118d been remappend and dpf removal iv had the hpfp changed twice now and getting this problem when you can boot the car in first and second then once u get to 3k rpm in 3rd/4th the car go's in limp mode well still carry on but no turbo iv spent 2700 on repairs now and getting sick you got any idea on what this could be
May 13, 2017
  Followup from the Pelican Staff: have you checked if the in-tank pump is failing? That can cause multiple hpfp failures. - Nick at Pelican Parts  
Bahama boy Comments: Hello good day hey nick I'm having an issue right now with my 2009 n54 e93 model,I just replace the HPFP and the Low pressure fuel sensor with it now I'm getting a code which is P302c and my car is bubbling on cold starts and going in limp mode a few seconds after.Its driving me crazy
May 13, 2017
  Followup from the Pelican Staff: Issue could be with the in-tank fuel pump or a leaking fuel injector. I would check low pressure fuel delivery to the hpfp. - Nick at Pelican Parts  
john Comments: Hello i have 120i e87 2005
when the car stay for 30minutes and more ,especialy on hot days, it is cracks for 5-7sec before starts only the morning is litle unstable for one minute. my car use petrol and vialle lpi lpg system and after 1 minute or more jump automaticaly to lpg fuel..if switch only petrol mode it is all right on the road
i replace fuel pump vdo ,fuel pressure regulator and filter vdo ,original temperature sensor ,injectors,sparks change oil,use 100octane petrol,
May 5, 2017
  Followup from the Pelican Staff: Sounds like a fuel pump issue, but you mentioned replacing it. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
ST3F40 Comments: Hi all,
I am an owner of a 2010 BMW 535i which has been giving me some problems lately. The problem I have is that my fuel pump cuts out and my car shuts off. I get the error message on my dashboard display which says I should check the fuel pump. I proceeded by changing the fuel pump twice which didn't fix the problem, then I changed the module EKPS which I programmed and updated with the current firmware but it didn't change anything. I still have this problem to this day. The error code given to me all the time is:
6292-EKPS: Control voltage to low
6293-EKPS: Control Current to high.

If anyone has any suggestions or has a similar problem, please PM me.
Thank you
April 10, 2017
  Followup from the Pelican Staff: I would voltage drop test the power and ground supplies to the EKPS module. You may have a faulty wire to it. - Nick at Pelican Parts  
Nyles Comments: Nick, We retested everything again today and now the pump isn't making any noise. Does the LPFP make a noticeable audible noise when energized? I've been told that when you open the driver's door its supposed to energize the pump as well, but I cant ever remember hearing anything other than the other doors unlock. The car continues to start so, my question is if the LPFP is bad will the car continue to start or do you think there's another issue?
April 3, 2017
  Followup from the Pelican Staff: If the LPFP was bad, the car would not start. Are you able to view the fuel pressures on a scan tool? That is really the best way on these. - Casey at Pelican Parts  
Nyles Comments: Hi Nick, I have a 2011 E90 with the N55. I've had an issue with long starts for about 8 months. No codes and it's never gone into limp mode. Other than the long start it runs great. Yesterday we replaced the fuel pump regulator and I'm still having the issue. I checked the fuse for the fuel pump and its good.I hooked up 12volts to the pump and it hums, so I tested the EKP module, I metered 12volts going into the module but only 9.6 volts coming out of the module going to the pump. Is this normal for the EKP module or should I be seeing 12volts to the pump? Thanks for any help you can provide
April 2, 2017
  Followup from the Pelican Staff: I believe that the EKP does alter the fuel pump output by pulse width modulation, which could give you a reading that is not consistent with the input. - Casey at Pelican Parts  
Kenny Comments: Hello. Had my car 2006 325I scanned at O'Reillys and immediately after car wouldn't start. No fuel pressure and it keeps blowing the fuse for the fuel pump. I replaced the pump and still the same issue. Going to try replacing the relay next, I was wondering where it was exactly?
March 23, 2017
  Followup from the Pelican Staff: I don't have fuse location info, it will be located in a repair manual. I would grab a repair manual.
Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
PeraltaBMW Comments: I need your help. Got a 2008 328i with a no start situation. I got these error codes P0261,264,270,273,276 all indicate low voltage. When I try and activate the fuel injectors only #2 will respond. I checked all the grounds and didnt see anything odd. I tested the fuel pump and it was at 72.5 PSI. I am dumbfounded please help!
March 17, 2017
  Followup from the Pelican Staff: Check the charging system, voltage faults usually indicate a failing charging system. Don't forget to check the AC voltage as well, should be less than 50 mV - Casey at Pelican Parts  
AshO_007 Comments: Hi. I got a 2005 BMW 120I e87. My car is overfueling, if you start it after a day or so it will start without any problems but after a few minutes it switches off as the plugs get wet with fuel. What could be causing this over fueling?
March 6, 2017
  Followup from the Pelican Staff: If you are sure you are not losing spark, you probably have leaking injectors. - Nick at Pelican Parts  
EVAN ALFRED Comments: HELLO NICK! I HAVE A 135I N55 2011. IVE NOTICED OVER THE PAST FEW WEEKS MY START UP TOOK A LONG TIME TO CRANK EVERY COLDSTART. I DIDNT THINK MUCH OF IT CONSIDERING I WAS CHANGING SPARKPLUGS/COILS SOON. NEXT THING I KNOW IM STRANDED ON THE SIDE OF THE ROAD, CAR SHUTS OFF AND NEVER TURNS ON AGAIN. BATTERY=PERFECT, GAS=QUATER TANK, ITS ALSO NOT GIVING ME ANY CODES. I BELIEVE ITS MY LPFP. WHAT ROUTE SHOULD I TAKE? THANK YOU!
January 27, 2017
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
If fuel delivery is not present, confirm power and ground to the pump. FOllow steps in the article you commented on. - Nick at Pelican Parts
 
Jim Comments: HELP. 2011 BMW 328Ix cold mornings colder than 35 degF won't start. turns over fast. kicks once sounds like no fuel? no codes. wait until weather is 40degrees noon out starts fine. if I hold start button 3 minutes keep trying sometimes can start it, then it runs rough until warm 5 minutes. then reset codes and starts fine rest of day?
January 16, 2017
  Followup from the Pelican Staff: Could be the fuel pump. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose. - Nick at Pelican Parts  
Jack37 Comments: Hi I have a e90 320d I have codes4570 4590 car Emil comes on and goes into limp mode checked the voltage at pump and getting 9.2 volts changed fuel filter car is doing my head in
December 28, 2016
  Followup from the Pelican Staff: Those fault codes point to a fuel pressure or fuel delivery issue at the rail. Check fuel delivery and the fuel rail sensor. - Nick at Pelican Parts  
AdiE90320in46 Comments: E90 320i n46 warm start car idle drop, if hold gas pedal 1 2 min car run great , no fault, but car has LPG also when switch from lpg to petrol idle drops to 0, no check error, checked inpa and carly https://youtu.be/t26VhA4D6TM
December 22, 2016
  Followup from the Pelican Staff: I would check fuel delivery. That or carbon could be your issue. - Nick at Pelican Parts  
Ricardo Comments: I have a E90, the fuse #70 blow every time I put a new one, inspected the fuel pump module and was burned, do I have to change the pump before putting a new module?
December 5, 2016
  Followup from the Pelican Staff: Yes. I would. Also confirm the harness isn't shorted. - Nick at Pelican Parts  
Todd Comments: I have a 2009 BMW 328i 52 engine, car stalled and got CC-ID 309 code. Replaced fuel pump and ran fine for 60 days, same issue now again. Both times it's been towed home it then starts just fine once off the tow truck. Should I start with a possible EKP fault?
November 28, 2016
  Followup from the Pelican Staff: That fault code doesn't show up in my chart. I would need the P-code of BMW code.

Could be an issue with the fuel pump or module. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
- Nick at Pelican Parts
 
Andrey Comments: Hello,

I have a 325i E90 2006. I replaced the fuel pumpright side and sending unit/pressure regulatorleft side. They were both leaking fuel. After replacement, I got a service engine soon light, P1447. I replaced the DMTL pump. I can't get rid of the service engine soon light. I reset it but a few day later it comes back. Car running fine.
November 21, 2016
  Followup from the Pelican Staff: The tank may be leaking at one of the service collars for the units. Check tightness there. - Nick at Pelican Parts  
giannis Comments: "If you cycle the key and bring fuel pressure up to 4.5 bar without trying to start it, does it start as soon as pressure is up? if so, I would replace the fuel pump"
Many times cycle the key but never start up immediately,before start never increase the fuel pressure
at 4,5bar
November 17, 2016
  Followup from the Pelican Staff: Then check if the pump is being cycled on when you cycle key, if so the pump is faulty. - Nick at Pelican Parts  
giannis Comments: Hi i have 120i e87 2005
when it is cold it is cracks for 5sec before starts
i measure the fuel pressure and i notice that it is too low before start cold1 bar and after 4,5bar,
after 1 hour pressure will be 3.5bar
what is the faulty fuel pump or fuel pressure regulator
those are difrents parts in my car. fuel regulator and fuel filter is one item
notice. never replaced the fuel filter and my car works with lpg.thank you
November 11, 2016
  Followup from the Pelican Staff: Could be the fuel pump check valve.

If you cycle the key and bring fuel pressure up to 4.5 bar without trying to start it, does it start as soon as pressure is up? if so, I would replace the fuel pump.

Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Chainsaw Comments: Hi, I have a 09 BMW 328i with a 6293 fault code EKPS control current too high. The car sometime run with very rough idle, misfire and stall, when this happened I had to wait for about a haft an hour for it to run normal again. Can you let me know if it has a bad fuel pump or a fuel pump control module or it's something else?

Thank you!!!
October 24, 2016
  Followup from the Pelican Staff: You will have to test the fuel pump and see. Measure fuel pump current. Should draw 8-12 amps. - Nick at Pelican Parts  
Mphilisi Comments: thank you guys for your responses and comment. Can anyone help year BMW 320i e90 2009 does not supply current to the fuel pump and there is no spark. it cranks but does not start. Please help
October 22, 2016
  Followup from the Pelican Staff: Is power or ground missing? I don't have wiring for your vehicle. You will have to activate the fuel pump and check if the fuel pump module is responding. - Nick at Pelican Parts  
Anton Comments: Prologue:
Couple months ago my car didn't start in the morning - cranked for a 30 seconds with no luck. I replaced fuel pump control module the thing from picture with used one from another 328i and car was running again.
Problem:
Car started having rough idle after being parked overnight for the first 30 seconds or so. Also SES light would come on with 29E1 "Fuel mixture control 2" and sometimes with 29E0 same error for other bank error codes.
I checked for vacuum leaks, cleaned MAF. Today I checked fuel pressure as directed in this useful article. It was 3.5 bar before start and on idle and 4.2 bar @ 3000 RPM. I didn't have DVOM, but my code scanner reads data stream from fuel pump control module:
Voltage, terminal 30: 14.5 V
Voltage, terminal 15: 14.3 V
Voltage, fuel pump: 5.1 V
Current, fuel pump: 5.9 A
Question: Do I have a problem with fuel pump or is it pump's control module? Or is it something else?
Thanks a bunch in advance!
PS: My car is '08 BMW 328i Coupe, with N51, last 7 VIN: P118734, 85K miles.
October 22, 2016
  Followup from the Pelican Staff: Current looks low. I would confirm the fuel pump is supplied good power and ground, if so it is likely faulty. - Nick at Pelican Parts  
Anton Comments: What is the thread size on fuel pressure test port?
October 17, 2016
  Followup from the Pelican Staff: I don't have that info. - Nick at Pelican Parts  
hotdog Comments: ma bmw e90 petrol a put gallon petrol in car it used all it within 5 min car stinking petrol missing got told high pressure fuel pump
October 9, 2016
  Followup from the Pelican Staff: If it smells like fuel, check the fuel tank or lines for leaks. Do not drive the vehicle until you find the source. The top of the fuel tank is a common spot for leaks. - Nick at Pelican Parts  
Turicate Comments: I have a 330i 2006 e90; my car cranks ok but won't start I checked the pressure on the rail and goes up to 50 psi there is no power to the spark plugs; what can it be? Thanks for your help
October 2, 2016
  Followup from the Pelican Staff: Check the main relay and fuse for the ignition coils.


I would grab a repair manual. It will have the wiring and fuse locations.

Give our parts specialists a call at 1-888-280-7799.- Nick at Pelican Parts
 
burns bm Comments: no engine light and no codes
September 23, 2016
  Followup from the Pelican Staff: You should check spark, fuel and compression on all cylinders. - Nick at Pelican Parts  
burns bm Comments: Hi there was hoping you could shine some light on a problem im having with my e90 06 325i n52 the car has a slight stutter at idle but biggest problem is when driving the car has a big flat spot at 3-4 rpm i have had the car running on live data and it seems to be pulling ignition timing leaving car down on power i also had the car on a rolling road showing the flat spot im noticing and a few other smaller less noticeable ones.The car is showing no fault codes at all i have installed new plugs and cleaned and swapped exhaust and intake solenoids but no difference could this be hpfp or injector.Many thanks
September 13, 2016
  Followup from the Pelican Staff: Is the check engine light on or flashing when the problem is present? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders.
- Nick at Pelican Parts
 
HusMakki Comments: Hi Guys. I'm having trouble with the fuel pump since I bought the car 2 weeks ago. So i had the fuel pump malfunction warning come up and the car stalled. I lifted the seat and gave the fuel pump housing a little shake and was able to start the car again. it happened twice after and doing the same thing didnt help. The weird thing is that when I disconnect the battery and connect it again the car starts fine. the error codes I'm getting on carly adapter are:
EKP-Engin failure 6293
EKP-motor: voltage 6292
August 1, 2016
  Followup from the Pelican Staff: You didn't mention what vehicle you have. That fault can be for a faulty duel pump or the EKP module. Depends on where the signal fails. I would check voltage output to the pump from the EKP. - Nick at Pelican Parts  
Joe T Comments: Note that this is a follow-up to my July 15, 2016 post where my 2011 E90 would not start. I followed the diagnostic here which indicated that I had a faulty fuel pump. I ordered a replacement and installed it. During the installation, I noticed that a hose was loose inside the tank that connected the fuel pump housing to the pressure sensor. This loose hose allowed the fuel to dump back into the tank and not pressurize the rail. This was the actual cause of the no-start condition. Since I already installed the replacement pump, I left it in place and buttoned up the tank. The car started right away but had a rough idle. Fuel rail pressure was only 65 psi. The rough idle eventually went away as the ECM trimmed the injectors. However, the "Service Engine Soon" lamp lit. All service is current and none are due. My scan tool is showing codes P0170 and P0174 active for "Fuel Trim Malfunction". I suspect that this may be caused by the low fuel rail pressure. I read elsewhere that BMW changed fuel pumps to increase rail pressure. I suspect that the replacement pump may be of the old vintage. Do any forum readers have any experience with this topic?
July 29, 2016
  Followup from the Pelican Staff: I do not know of an updated pump. The parts specialists will be able to see any superseded part numbers. Give our parts specialists a call at 1-888-280-7799 - Nick at Pelican Parts  
Kingtik Comments: The fuses and relay good ! But no voltage in the output EKP !
July 25, 2016
  Followup from the Pelican Staff: EKP may be faulty. Only way to know for sure is to command the pump on using a BMW scan tool and monitor the circuit. - Nick at Pelican Parts  
kingtik Comments: Hello, i have a 330d e90 231ps my car won't starts, fuel pump iss good when i put 12v it's working fine, but when i press the start button and put my dvom i have only 1.57v on the connector i don't listening the fuel pump and my car doesn't starts. thx
July 21, 2016
  Followup from the Pelican Staff: I would grab the wiring diagram. You may have a voltage drop for the control circuit. - Nick at Pelican Parts  
DjK Comments: I have a n43 engine 2008 3 series,it crank but doesn't start, I already change the 2 camshaft and crankshaft I also replaced the 2 vanos solenoid,battery is fine took it Oort then tested the voltage and the reading is 12,I need help please any suggestions. Thank you.
July 20, 2016
  Followup from the Pelican Staff: When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.
- Nick at Pelican Parts
 
Joe T Comments: I have a 2011 E90 that will not start. Ran fuel pressure check as described here and verified had no pressure at the fuel rail when cranking and also had adequate voltage to the fuel pump. Now need to order replacement fuel pump.
July 15, 2016
  Followup from the Pelican Staff: Awesome, glad the article helped. Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
MPHILISI Comments: HI THERE, MY CAR e90 2009 320i DOES NOT WANNA START, WHEN TURNED ON IT SHOWS FUEL SUPPLY FAULTY. WHAT COULD BE THE REAL PROBLEM. I WAS ON THE ROAD WHEN IT CUT OFF. PLEASE HELP.
July 3, 2016
  Followup from the Pelican Staff: Could be an issue with the fuel pump. I would perform a fuel delivery system test. Check fuel pressure, volume and quality.
- Nick at Pelican Parts
 
Dave M Comments: Hey thanks for responding. I don't have a pic as the car is now at the mechanic. Was not fuel pump. Anyway, it's a round 6 pin connector you rotate the outer part and it comes straight up and off. it's kind of an external locking ring. It was just stuck, I eventually got it off.
June 20, 2016
  Followup from the Pelican Staff: - Nick at Pelican Parts  
dave m Comments: I have a 2009 LCI 328i with the single round electrical plug versus the two you squeeze. How do you get that off?

thanks
June 18, 2016
  Followup from the Pelican Staff: I would need to see a photo of the connector to comment. Can you share one? - Nick at Pelican Parts  
Sajmik Comments: Hello, check engine light is not on, I dont think it is misfire.
Otherwise car pulls strongly and smoothly in higher RPM. I cleaned VANOS solenoids, but I wouldn't be surprised if it was something mechanical in VANOS if it is possible?

Also MAF came to my mind. Few months back I tried new MAF and there was no difference, but I didnt let the car adapt maybe? Just started saw the uneven idle and took the new MAF out.

https://www.youtube.com/watch?v=9pL8cfP53U4 here is a video I took a while back. It is similar now, but maybe the needle is moving little bit more.

Thanks again !
May 9, 2016
  Followup from the Pelican Staff: MAf will not cause misfire like symptoms you are describing. Check the items I noted. if VANOS was the issue, it would show up in dynamic compression. - Nick at Pelican Parts  
Sajmik Comments: Hello,

I've got 2005 E90 330i n52b30 engine.
On cold start car starts nicely, but almost immediately there is uneven idle. Like 50 rpm up and down, but needle is visibly moving. On warm start the whole car shakes for few secs 2-3secs and again uneven idle. Also under about 1600 rpm car accelerates weirdly and it is hard to perform smooth 1-2 low rpm shift. shifting to second at like 2700 makes the shift much more easier to make smooth than shifting under approximately 2500 and hitting the rpm on second gear under mentioned 1600. And at last but not least, fuel consumption indicator started fluctuating at even speed. - this wasnt happening until last few weeks. Could this be a fuel pump? I am having these problems for last year, wouldnt the fuel pump failed completely until now? Also it didnt got much worse. If not fuel pump, could it be lower grade fuel i am using? 95 here in europe instead of 98. If yes, is there method to reset car computer to adapt for better fuel without diagnostic tool? Sorry for my english and would really appreciate your answer.

Kind regards, Simon
May 8, 2016
  Followup from the Pelican Staff: Is the check engine light on? Sounds like an engine misfire. I would check spark, fuel and compression on all cylinders. You may find an issue with the VANOS system.
- Nick at Pelican Parts
 
Mio Comments: Hi sir, I have a 2006 e90 320i. I was just wondering maybe you have an idea to the problem of my car. Everytime I start the engine it has rough idle its like it is misfiring. But when I turn on the aircon, rough lessen and sometimes it becomes smooth. The power is still there but the annoying rough idle always there when I turned off the engine. Also 1 sprk plugs misfire. I changed spark plugs and coil already but it still there. Thank you I hope you can help me.
April 8, 2016
  Followup from the Pelican Staff: When the a/c is turned on, the idle raises. This may smooth out the engine is your issue is related to a vacuum leak. I would check the engine for vacuum leaks or unmetered air leaks. - Nick at Pelican Parts  
Andy Comments: Hi Nick, how can i diagnose if this issue is "fuel pump check valve" Or "Pressure regulator" or other cause on this model. Thanks
April 7, 2016
  Followup from the Pelican Staff: It doesn't matter. As both are part of the fuel pump module, replaced as a unit. Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Andy Comments: Hi Guys, my 2008 328xi hard starting issue seems to be related to not maintaining fuel pressure after car is stopped/turned off. While engine is on, pressure is around 68 psi, when turned off it drops immediately to zero no pressure .

Anyone knows where is the "fuel pump check valve"? Is it built into the pump unit in the tank? can I replace it alone, or must replace the entire fuel pump?

Thanks
Andy
April 5, 2016
  Followup from the Pelican Staff: It is part of the pump. Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need. - Nick at Pelican Parts  
Andy Comments: Hi, where is the fuel pump check valve. My 2008 BMW 328xi is NOT holing pressure after engine stop. Its causing hard start 3-6 seconds of cranking before it starts.
April 3, 2016
  Followup from the Pelican Staff: It is part of the pump. Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
FM Comments: Hi Guys, I have a 2007 328i and my problem is that when I always go to the gas station and I put gas is the car, it does not start until I wait for couple of minutes and then starts with assist, more so it stalls as I drive too.
I had the mechanic test the fuel pump and it reads 72 psi with pressure test for more than 20 minutes, and it sounds like the pump is running perfect.
What could be the issue there??
March 20, 2016
  Followup from the Pelican Staff: 72 PSI is too high. There may be an issue with the sending unit or regulator on the sending unit, inside the tank. - Nick at Pelican Parts  
Grib Comments: Its OK - I found it.
March 8, 2016
  Followup from the Pelican Staff: What did you find? - Nick at Pelican Parts  
David Comments: To check for short, can I just detach harness from the EKP end? Where does the other end of harness go to, ECU box? Thanks.
November 11, 2015
  Followup from the Pelican Staff: No, both ends have to be detached, otherwise you can ruin other components while testing. - Nick at Pelican Parts  
David Comments: Thanks Nick. Would I be able to replace EKP and then drive car to shop for the coding, or is EKP unusable before coding and will have to tow car to shop?
November 11, 2015
  Followup from the Pelican Staff: Good question. You may be able to. I am not 100% sure. if the car doesn't drive now, worth a try. Worse case is you have to tow. - Nick at Pelican Parts  
David Comments: I disconnected the fuel pump control module and the fuse no longer blows. Does this highly implies that I have a bad EKP or is there a good chance still that my problem is with the wiring? I read that coding is needed for new EKP. Would I be able to replace EKP and then drive car to shop for the coding, or is EKP unusable before coding and will have to tow car to shop? Thanks Nick!
November 11, 2015
  Followup from the Pelican Staff: I would assume the EKP is faulty. Check if the harness is shorted by detaching it at both ends, then use a test light to battery positive and check if it lights when inserted into the circuit. Be sure the harness is disconnected for all components of the fuel pump control. - Nick at Pelican Parts  
David Comments: Some additional data regarding previous question e90 06 325i. Having trouble starting the car due to blown fuel pump fuse #35. With ignition off and no key, the new 20amp fuse would blow as soon as i put it in. I've disconnected the electrical connectors for the following items and the fuse still blows: fuel pump, lower hose temp sensor, large plug on top of radiator, coolant temp sensor, oil temp sensor. Appreciate your help with this.
November 10, 2015
  Followup from the Pelican Staff: The problem is likely in the fuel pump control module or wiring, if fuse blows with fuel pump disconnected. - Nick at Pelican Parts  
David Comments: Hi Nick, I have an e90 06 325i. Having trouble starting the car. I've traced it down to fuel pump not running due to blown fuse #35. I disconnected the fuel pump's electrical connectors, and yet as soon as I plug in a new 20amp fuse, it blows immediately. I'm guessing that helps rule out out a bad fuel pump? What should i be testing next? Thanks!
November 9, 2015
  Followup from the Pelican Staff: Best way to test is to check the current draw of the pump. The short could be the pump or the electronic fuel pump module. - Nick at Pelican Parts  
Tony Comments: On a 08 335, what pressure should I see at the rail?
October 10, 2015
  Followup from the Pelican Staff: You can't test turbocharged engines at the rail. Pressure is too high. The test is performed using a BMW scan tool. - Nick at Pelican Parts  
Scott Comments: just kind of racking my brain part of me wants to think its fuel related just being that during the colder months higher density fuel don't notice the issue, but it comes back when it gets warmer weather out. plugs and coils I replaced last fall when it first started, and it seems to have the issue in midrange RPM ~2500 to around 4kRPM feels like a miss but more a hesitation. you don't see much injector "noise" during higher rpm unloaded, but loaded is where the fuel pressure tends to wander a few psig the ST< trims are acceptable so it dosent lead me to a lean or injector issue. cleaned and checked VANOS solenoids but I need a BMW scan tool to put it into its self test mode and actually give some data feedback. I guess the quest continues. thanks
April 30, 2015
  Followup from the Pelican Staff: Assumptions won't get results. You have to check each part of the combustion process to locate a misfire. - Nick at Pelican Parts  
scott Comments: thanks Nick!, that is troubling to "throw a pump" at it and not know if it truly will fix the issue. it would be easier if it just failed,
April 29, 2015
  Followup from the Pelican Staff: You don't have to throw a pump at it. You can find out what is causing the misfire. I would check spark, fuel and compression on all cylinders. - Nick at Pelican Parts  
scott Comments: the fuel pressure spec is 72.5psi +/- what? it should have a tolerance. im measuring 70-74psi approx. under load, lower pressure I get a misfire like condition any thoughts
April 28, 2015
  Followup from the Pelican Staff: Fuel pressure is electronically controlled using pump speed. It is a set pressure of 5 bar. BMW states, fuel pressure will not fluctuate as you mentioned. This has been my experience as well.- Nick at Pelican Parts  
zee Comments: Hi, I have a 2006 BMW 325i e90 .Having a fuel pump voltage issue.Ignition on, I have 75 psi fuel pressure, but once starts it goes back to 25 psi. Voltage on my pump is 4v.Is this normal,it often stalls.Replaced pump and module,no change.
April 24, 2015
  Followup from the Pelican Staff: Power and ground both come from the fuel pump module. I would try monitoring voltage while commanding the fuel pump on at 100%, see what voltage is. - Nick at Pelican Parts  
DWS335 Comments: 2007 335i. I'm getting a reading now from the same pictures mentioned above. And the elwctric pump is running. Car starts up rough then shuts off. HPFP?
March 24, 2015
  Followup from the Pelican Staff: I can't help without knowing what is missing from the system when you are trying to start it. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.
- Nick at Pelican Parts
 
DWS335 Comments: Hi, I just want to start out by saying thanks for all of the information provided. I disconnected both fuel pump connections to test for voltage. Only one of the two gave me a reading. I hear the pump turning on, but should I get a reading from both electrical connections. Thanks
March 22, 2015
  Followup from the Pelican Staff: What vehicle are you working on? Which side of the vehicle had what readings? Wire colors, terminal numbers, etc? - Nick at Pelican Parts  
Knatte Comments: 2006 :
February 25, 2015
  Followup from the Pelican Staff: We didn't have a diesel in the US that year. So I don't have the wiring. See if you can locate a wiring diagram and share it here. Then i can help.- Nick at Pelican Parts  
Knatte Comments: Hi Nick : , i've got a E91 330D just measured the voltage at the pump and it's confusing, i got something like 3v when inserted keycard then while cranking 8 - 9v, is this normal? what could i do?
February 25, 2015
  Followup from the Pelican Staff: What year is the vehicle? - Nick at Pelican Parts  
bmwtrevor Comments: hi can anyone help me? I have a 2005 bmw 320i, I am having trouble locating the ekpm fuel pump module. can anyone tell me where to find it. many thanks in advance.
February 17, 2015
  Followup from the Pelican Staff: We don't have that vehicle here. But on US models, it is behind the right rear seat back cushion. On the C-pillar. - Nick at Pelican Parts  
exhausted Comments: having problems with my 328i, first replaced starter and after driving it a bit it started shaking bad returned to shop they said they forgot to reconnect a wire now I had to replace fuel pump but now it doesnt register that its full? was there a step missed?
January 6, 2015
  Followup from the Pelican Staff: If the fuel level doesn't register, there maybe an issue with the level sender in the tank. It may have been left unplugged during the repair. - Nick at Pelican Parts  
dad Comments: hi nick thanks for all your info i got a2.8hilux a little heavy on desol got any advice
August 27, 2013
  Followup from the Pelican Staff: A drop in mileage can be many things, from a leaking injector to a different diesel blend. Might want to start by checking the DME for pending fault codes. - Nick at Pelican Parts  
DAD Comments: hi guys this weekend my brakes just come n go then i have to pump it up a little to work and then i top up brake flute and it just sucs away wat can it be n we do i look thanx pals.
August 12, 2013
  Followup from the Pelican Staff: Sounds like you have a brake fluid leak. I would inspect the hydraulic system for leaks. Look for dripping fluid under your vehicle. - Nick at Pelican Parts  
DAD Comments: hi nick my bmw box type got another motor and a top know carr is runing good but i hear a noise from the power steering pully and i notice the pully doesnt swing evenly sligthly wobbling do i need to worry or can u help me thanx
July 22, 2013
  Followup from the Pelican Staff: if the pulley is wobbling, it could be bent or the power steering pump itlself could be bent. I would remove the drive belt and inspect both. - Nick at Pelican Parts  
dad Comments: hi nick if i put on a uther cylinder head on will that solve my compresstion probblem n thanx for the advice man really appriciate it
July 8, 2013
  Followup from the Pelican Staff: You never loved me. A new head will probably take care of it - Nick at Pelican Parts  
DAD Comments: HI GUYS MY BMW 320I BOX TYPE AUTO DONT HAVE COMPRESSTION TO START THE CARR THE SPARK PLUG HID A VAVLE WHO IN RETURN HID A PISTON I REPLACE THEM ALL WITH PISTON RINGS AND BAERINGS WEN WE WANT TO START THE CARR IT WONT START NO COMPRESSTION CAN U HELP ME THANX.
July 5, 2013
  Followup from the Pelican Staff: You will have to perform a cylinder leak down test to determine where the loss of compression is. - Nick at Pelican Parts  

QUICK LINKS
About Us
Careers
Pelican Parts, LLC
1600 240th Street
Harbor City, CA 90710
Order Online or Call:
888-280-7799
CONNECT WITH US
NEWSLETTER
Sign Up for Pelican Pit Stop News & Special Offers
Page last updated: Sun 11/19/2017 02:21:12 AM