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Unread 06-01-2010, 10:24 PM   #1
spreadhead14
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2003 WJ 
 
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WJ Throttle Position Sensor Replacement

I have a 2003 WJ Grand Cherokee with a 4.0 inline 6 engine. I need to replace the throttle position sensor. I purchased the TPS from the dealership and they wanted to charge me an arm and a leg to replace it, so I want to do it myself. What are the steps to tackling this job. I understand that you should clean the throttle body while doing this. Is there a thread that explains this in detail? I have looked but couldn't find anything. I appreciate any help on this!

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Unread 06-01-2010, 11:21 PM   #2
myjeeplovesmud
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go back to the dealer and buy MOPAR de-carbonizer. stuff works wonders, and is easy to use. blows sea foam out of the water. just spray it in the throttle while the jeep is running, open the throttle from time to time, you should see a black cloud come out of your exhaust, this is normal. thats all the junk coming out of your engine.
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Unread 06-02-2010, 09:32 AM   #3
LordHobbit
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The TPS is on the throttle body, as you described. It has a few screws and an electrical connector. Take those off, pop the sensor off, put the new one on, then the screws and the connector you should be good.

Those screws are likely to be torx, so you may need to go "aquire" a set.
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Unread 06-02-2010, 09:44 AM   #4
bigbill888
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You don't need to clean the throttle body. The TPS is held on with two Torx screws (T20 I think). Make sure it is engaged with the throttle correctly before you screw it down. It will be obvious when you get there.
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Unread 06-02-2010, 11:34 AM   #5
PDXCoug
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The screws are Torx 20 I want to say. They are a huge ***** to get at, since they are facing the back and it was almost impossible for me to get the screws to turn. That could have just been me though. I think Jeep could have positioned the unit a little better during assembly
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Unread 06-02-2010, 04:11 PM   #6
spreadhead14
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Thanks for all the help!! I will start this tomorrow.
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Unread 06-02-2010, 05:02 PM   #7
myjeeplovesmud
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Quote:
Originally Posted by bigbill888 View Post
You don't need to clean the throttle body. The TPS is held on with two Torx screws (T20 I think). Make sure it is engaged with the throttle correctly before you screw it down. It will be obvious when you get there.
if ya have to pull 1/3 of the motor off to get to this anyway, wouldn't it just be wise???
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2004 WJ Limited 4.7 H.O
K&N FIPK - Magnaflow Exhaust
17" XD Series Spy Rims- Custom Painted
ZONE 4" Lift With 32" Duratracs
Hella Lighting - Rola Rack - KOR 3/4 Spacers
IRO Sliders - Rusty's Hooks - Cobra CB

MY BUILD THREAD
BAD TO THE BONE ZONE


November 2010 GCOTM
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