idle speed when cold?
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Mountain Pass
Joined: Sep 2005
Posts: 192
Likes: 1
From: Tampa Bay, Florida
idle speed when cold?
Seems to me my truck (92 F150 5.0) used to idle at 1100 rpm or so when cold then drop down to 600ish.
Now it just starts up and goes to 600ish, even if the block's cold and it's below freezing outside.
Am I remembering this wrong? Was it a different car (my old Altima)? Do I have something else going on or am I just imagining things?
Thanks!
Now it just starts up and goes to 600ish, even if the block's cold and it's below freezing outside.
Am I remembering this wrong? Was it a different car (my old Altima)? Do I have something else going on or am I just imagining things?
Thanks!
Mountain Pass
Joined: Nov 2009
Posts: 187
Likes: 1
From: Elizabeth, PA
Sounds to me like its the Idle Air Controller, or IAC. Its a small actuator on the side of the throttle body, two bolts and a electrical plug are all that holds it on. Try taking it off and flushing it out with some carb cleaner, as they do get carboned up and stick. Then blow it out gently with a blowgun. Then lube it up with some WD-40. Be careful and try your best not to damage the gasket. If you do, its not a big deal since you can get just the gasket. It worked on mine for a good while until it totally quit working. Don't bother wasting time with one from the local parts store, they don't work. I tried 3 from Advance Auto, and they did the opposite, not letting the truck kick down from high idle. This is one rare thing where a junkyard part is you best cheap way out. If you want a new one, get one from Ford, which when I priced one was about $98.
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Mountain Pass
Joined: Sep 2005
Posts: 192
Likes: 1
From: Tampa Bay, Florida
It is what it is, but that will annoy me a bit.
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Mountain Pass
Joined: Sep 2005
Posts: 192
Likes: 1
From: Tampa Bay, Florida
No, not yet. Will get back with those soon. In the meantime I've noticed this is going to be an intermittent thing. It worked fine today.
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