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Crankshaft or Engine Speed Sensor Replacement
 
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Pelican Technical Article:

Crankshaft or Engine Speed Sensor Replacement

Steve Vernon

Time:

2 hour2 hr

Tab:

$25 to $75

Talent:

**

Tools:

6mm, 5mm Allen

Applicable Models:

VW GTI (2006-09)

Parts Required:

New Crankshaft or engine speed sensor

Hot Tip:

Use a mirror

Performance Gain:

Smoother running car

Complementary Modification:

Replace Camshaft positioning sensor
The sensor is buried in between the oil filter and the transmission on the front of the motor.
Figure 1

The sensor is buried in between the oil filter and the transmission on the front of the motor. It is very difficult to photograph while in the motor so I have included thisPicture with the front of the car removed to show just where it is. Note; you do NOT need to remove the front the car to change the sensor. With the front of the car removed you can see the wiring harness connector (yellow arrow) is located in a clip on the left side of the oil filter while the sensor is located behind it. Before you remove the sensor it is a good idea to clean around the sensor area as best as you can. There tends to get a lot of oil and grim build up in this area and you do not want it getting into the motor and you want to make sure the new sensor sits flush.

There is a plastic mount that has two clips in it.
Figure 2

There is a plastic mount that has two clips in it. It holds the engine speed sensor wiring connection (red arrow) along with one for the knock sensor connections (yellow arrow).

Remove the connection for the speed sensor and separate them.
Figure 3

Remove the connection for the speed sensor and separate them. These clips get old and dried out so use care when separating them, Push back on the tab (red arrow) and it will lift the flap inside the female connection to lift it off the tab on the male connection (yellow arrow).

Remove the knock sensor (red arrow) from the clip but you do not need to separate them, just set it out of the way.
Figure 4

Remove the knock sensor (red arrow) from the clip but you do not need to separate them, just set it out of the way. You will now have access to the 6mm Allen bolt holding the clip in place (yellow arrow).

This photo illustrates the mounting clip with the 6mm Allen bolt (yellow arrow), you can also see the engine speed sensor (red arrow).
Figure 5

This photo illustrates the mounting clip with the 6mm Allen bolt (yellow arrow), you can also see the engine speed sensor (red arrow). You may be able to get at the sensor without removing the clip but you will have to bend it out of the way and may break it. Do yourself a favor and remove the 6mm Allen and the mount.

Here is the mounting clip out of the car.
Figure 6

Here is the mounting clip out of the car.

The sensor is held in place with a 5mm Allen.
Figure 7

The sensor is held in place with a 5mm Allen. Make sure you clean the head and area as you do not want to strip this bolt (red arrow).

Remove the bolt and the sensor from the engine.
Figure 8

Remove the bolt and the sensor from the engine. The sensor is actually a magnet so finding small metal "dust" on it is not unusual (red arrow). If you find anything larger it is cause for serious concern.

This photo illustrates the sensor out of the vehicle.
Figure 9

This photo illustrates the sensor out of the vehicle.

Make sure the area around the mount is clean and level before you insert the new sensor.
Figure 10

Make sure the area around the mount is clean and level before you insert the new sensor. You can see the ring (red arrow) on the flywheel that the sensor takes its reading from. Installation is the reverse of removal.

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Comments and Suggestions:
Johnny boy Comments: Hi..my mk 5 golf tdi sport glowplug light started flashing after a slight shudder, wen i turn ignition of & on again its normal then after about 7 mile same thing happens again, sometimes it will stall & not start straight away..iv took the speed censor off & cleaned it but its still happin..i put it on a scanner & the code is saying g28.. any ideas
December 1, 2016
Ron Comments: Is it the same on a dsg golf ?
November 9, 2016
  Followup from the Pelican Staff: What year and engine do you have? - Nick at Pelican Parts  
skyboy Comments: My golf V doesn't have a engine light and it won't spark so can it be the crank sensor its an 2l fsi
November 6, 2016
  Followup from the Pelican Staff: If the check engine light is not one, the DME may not be working. - Nick at Pelican Parts  
skyboy Comments: My golf V doesn't have a engine light and it won't spark so can it be the crank sensor
November 6, 2016
  Followup from the Pelican Staff: If the check engine light is not one, the DME may not be working. - Nick at Pelican Parts  
J R Comments: Brill detailed advice
April 27, 2016
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
lacovacha Comments: Hello,guys,I have a mk5 Rabbit and my speedometer stop working,do you think this could be the problem?Thanks in AAdvance...
August 20, 2015
  Followup from the Pelican Staff: Could be the cluster or a wiring issue. I would start by checking the vehicle for fault codes. - Nick at Pelican Parts  
Coolrunnings Comments: Thanks alot for da info, I have a vw mk5 that jerks on gear shift, this must help
November 24, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
Nathan Davis Comments: Thank you for this write up! Great pics, and advice!
June 15, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 

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Page last updated: Fri 12/9/2016 02:36:31 AM