Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Porsche 911 Carrera Throttle Body Cleaning
 
Bookmark and Share

Pelican Technical Article:

Porsche 911 Carrera Throttle Body Cleaning

Time:

3 hours3 hrs

Tab:

$15

Talent:

**

Tools:

Torx driver set

Applicable Models:

Porsche 996 Carrera models (1999-05)
Porsche 997 Carrera models (2005-08)

Parts Required:

New O-ring or idle control valve gasket

Hot Tip:

Remove the throttle body and let it soak in carburetor cleaner overnight

Performance Gain:

Smoother-running engine

Complementary Modification:

Replace intake plenum boots
The Carrera throttle body is a precision piece of equipment that is subject to a rather harsh environment.
Figure 1

The Carrera throttle body is a precision piece of equipment that is subject to a rather harsh environment. After years of reliable service, the throttle body may become dirty or clogged, which may result in lowered performance. You may find that there is a lot of built-up dirt, particularly if a previous owner didn't change the air filter too often (insert). Instructions on how to access the throttle body are detailed in Project 9 (Air Oil Separator). Remove the throttle body (green, yellow and purple arrows) from the intake plenum and then take it over to your workbench and clean it out using some carburetor cleaner. Run lint-free cloths through all of the passages and make sure all the dirt and debris is removed. Be sure to check your intake plenum boots for cracks while the throttle body is off and replace if necessary.

This is what your throttle body should look like after you've finished cleaning it.
Figure 2

This is what your throttle body should look like after you've finished cleaning it. Shown here is the early-style cable throttle with the idle control valve (green arrow). This valve controls the air that passes by the throttle. If it's clogged you will get erratic idle and warm up problems. Be sure to use a new gasket when you remount the idle control valve to the throttle body. With the throttle body completely clean, remount it to the intake plenum using a new rubber gasket (yellow arrow, inset photo).

Clean out any oil and debris from the inside of your intake plenum, and replace the rubber hoses/boots if they are old or cracking.
Figure 3

Clean out any oil and debris from the inside of your intake plenum, and replace the rubber hoses/boots if they are old or cracking. This photo shows the inside of the intake plenum on one of our project cars, which had a disastrous engine failure. Those small pieces of metal that you see there are leftover piston rings! Normally, you will only find oil and gas residue in the intake plenum. If your air-oil separator has failed, then you will indeed find plenty of excess oil in here and also coating the throttle body that needs to be removed.

Bookmark and Share
Comments and Suggestions:
gsmiller Comments: Ignore my previous comment; just realized one of the parts is a 997 part number and one a 996, which answers my question. Strange that both showed up in the parts catalog with my 996 selected. Oh well, thanks again for the great articles!
April 2, 2016
  Followup from the Pelican Staff: Thanks for the Info. We appreciate it.
- Nick at Pelican Parts
 
gsmiller Comments: Great article, as always! I was about to pull my throttle body out for cleaning this morning but noticed the suggestion to replace the seal with a new one. When looking for the right part to order, I'm a bit confused. Can somebody clarify if it's: 997-110-319-00-M100 "Throttle body seal" or 996-110-317-52-OEM "Sealing ring"? Thanks!
April 2, 2016
  Followup from the Pelican Staff: Your follow up:

Ignore my previous comment; just realized one of the parts is a 997 part number and one a 996, which answers my question. Strange that both showed up in the parts catalog with my 996 selected. Oh well, thanks again for the great articles! - Nick at Pelican Parts
 
JSG1206 Comments: Nick, I am searching for a 1999 996 Cable TB conventional spring mechanism that I can use on my 99 2.5l 986 boxster to install IPD's - 1999 996 Carrera Cable Throttle Plenum talking to Greg Martin at IPD - any advice on the best source for the part? thanks
January 8, 2016
  Followup from the Pelican Staff: Pelican Parts may be able to get you one. 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  
Adrians Comments: Nick, I am working on a '99 996 without e-gas... thanks
November 4, 2015
  Followup from the Pelican Staff: Thanks, I would suggest removing the entire throttle housing. In the case the bolts stick, you will have better chance working on a bench. - Nick at Pelican Parts  
AdrianS Comments: HI, I am about to replace the IAC rough idle after replacement of MAF and O2 sensors..... question... Do you have to remove the TB prior to installation or can the "unit" be removed straight off the TB and replaced?? Thanks
October 26, 2015
  Followup from the Pelican Staff: What vehicle are you working on? - Nick at Pelican Parts  
jj Comments: I think that I lost a part. I went to put the throttle body back on and the bolt is missing which is pointed by purple on figure 1. It looks like that the bolt has some kind of rubber on the backside. What part is it?
October 20, 2015
  Followup from the Pelican Staff: It's a rubber insulator with a stud.
I’m not the best with part numbers.

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
 
Blackbird1100 Comments: I accidentally came to spray a lot off brake cleaner into the idle control valve because I didn’t removed it before cleaning the throttle body. Can it do harm to the valve?.I have not yet mounted the valve and started the engine ..i am just a little worried about it.:- And how does the valve work ?
October 9, 2015
  Followup from the Pelican Staff: Depends on what the cleaner is made of. MOre damage can occur to the sensors on the engine than the valve. - Nick at Pelican Parts  
GromitInWA Comments: The bolts indicated by the green arrows should be tightened to 10N m/7.5 ft lbs according to the Bentley manual.
March 29, 2014
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Sat 12/3/2016 02:32:36 AM