idle at 3000 RPM
Thread Starter
CF Veteran
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Any ideas why this is happening. It just started i just put new brakes on then when i went to drive it out of the shop bay it was idleing at 3000RPM. I did have to jump start it but i dont think that would cause it to do this. Any ideas?
Thread Starter
CF Veteran
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
No vac leaks just looked. and the return spring is fine. It was running like a go cart last week it would barly stay running and now its running at 3000RPMs. So would that be the IAC or TPS?
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CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
Thread Starter
CF Veteran
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
k im going to go get one and take it in toamrrow but i will test my current one and see if it can be fixed or if its even the problem then if it cant i will replace it with the new one.
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
unless the valve it self is stuck then there would be no change


