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High Idle


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redsfan
User

Jul 5, 2011, 3:34 PM

Post #1 of 2 (1871 views)
High Idle Sign In

Hello, have a 98 Passport witha 3.2l and 107,000 mi.
Have cleaned TB and all ports including EGR. Replaced
IAC valve, unhooked TPS under PS resivoir. No codes.
Sprayed carb cleaner in IAC port- idle came down, turned engine
off and restarted- got the high idle again. Do I need to drive it and let the ECU
relearn that or not? Only other thing would be Intake gasket that I can
come up with, would I be correct? PLEASE HELP! unhooked neg. battery
cable for 5 min. Idles perfect. Cant figure it out


(This post was edited by redsfan on Jul 5, 2011, 4:01 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 5, 2011, 4:19 PM

Post #2 of 2 (1864 views)
Re: High Idle Sign In

The engine is finding unmetered air from somewhere. I would suggest a smoke test to find all the air leaks.



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