TPS replacement
#1
#3
What are the code numbers your getting?
My F150 was doing the same thing when I got it. What was happening was the TPS voltage was dropping to 0 under hard throttle and it shouldn't have been doing that. I replaced the TPS and also found out the pigtail from the ecu harness had gone bad and it was the primary reason that my TPS failed. I replaced both the TPS and pigtail and haven't had any problems afterwards.
Yes the Throttle Body does have to come off, but a new TB gasket is under $5 so just buy a new one to be safe.
My F150 was doing the same thing when I got it. What was happening was the TPS voltage was dropping to 0 under hard throttle and it shouldn't have been doing that. I replaced the TPS and also found out the pigtail from the ecu harness had gone bad and it was the primary reason that my TPS failed. I replaced both the TPS and pigtail and haven't had any problems afterwards.
Yes the Throttle Body does have to come off, but a new TB gasket is under $5 so just buy a new one to be safe.
Last edited by Moore558; 08-14-2007 at 05:47 PM. Reason: Need to restate question.
#4
#5
I reused my gasket and it worked out fine but it wouldnt hurt to replace it. Be sure to have something ready to plug the coolant lines or you will be sopping up alot of antifreeze. Soak the bolts for the throttle body with pb blaster first. Also, to keep from stripping the TPS screws, give them a little turn tight to break them loose then turn them loose and out. Be careful with the cables on the top of the TB so that you dont break anything when you take them off. And remember where and how everything goes so it goes back together easier.
#6
#7
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#8
I had to disconnect mine only because the screws were so tight on the TPS that I had to push hard against them with the screwdriver to keep them from stripping when I turned them. I could have got them with a phillips head bit in a 1/4 inch socket without removing the coolant lines if the stupid screws would have came out easier.
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