Questions & Answers for: new iac start idles 2500

new computer in starts just fine now it idles erratically when cold 2500 to 3000 rpm when it warms up 1200 to 1700 rpm it idled just fine when warmed up with the bad computer. stumped The bad ecu blew

...start by cleaning and inspecting the Idle Air Control Valve (IAC). on WWW.2carpros.com has a DIY on how. Just google it and you will see. ~Decker if it isnt the iac probably the pcv valve positive ...

...idles at 2500 rpm and have replaced the IAC valve three times. (TV278 Duralast from Autozone) since it's a ford windstar, you've posted in the wrong place. no help here unless it's a 2001 Santa

...start chasing the issue? Sounds like a dirty IAC (Idle Air Control) valve. It is located on the throttle body. Remove it and clean it throughly as well as the throttle body underside as well where a ...

...start the car with the air on, it starts at 2500 rpm and quickly slows down to 900 rpm and stays there. I changed the throttle position censer and the idle slowed to 1000 rpm, but this lasted only 2 ...

...new. bewlow. 1: cold start, for 3 to 15sec, 2500 rpm , worse in alaska. 2: then the above DASH pot closes and IAC takes over, at ~1200 3: then as engine heats the IAC closed inch by micro inch a its ...

...idles up to 2500 and after 5 or 7 seconds, goes back down to 1200 rpm 2002 escort SOHC Starts and immediately go to 2500 RPM. After 5 or 6 seconds, it will idle down to 1200. It won't go lower. Clean ...

now between 2500 and 3000 rpm checked excel cable not sticky and is not tight idling mech smooth and also not sticky can you help? kobus check IAC idle air control valve. clean with spray carb cleaner

...IAC or throttle body. Does it have any codes. Did you erase codes after rebuild? Any time I do a rebuild on engines and transmission, the codes have to to erased. Other wise you are trying to run a ...

...wiring to it. The air channel the IAC pintle is controlling may also be very dirty. I would first try replacing the IAC; however there are important instructions to follow after installing a new