runs rough when cold

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Dec 21, 2006 | 07:59 PM

tim nick

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runs rough when cold

my 2000 F-150 2wd V6 manual has been running rough when cold. It's been about 40 degrees before and after work. Runs fine when it warms up. Any ideas?

Dec 22, 2006 | 04:31 PM

searay220

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Quote:

Originally Posted by tim nick

my 2000 F-150 2wd V6 manual has been running rough when cold. It's been about 40 degrees before and after work. Runs fine when it warms up. Any ideas?

Could this be another case of the IAC valve sticking? tis the season!

Dec 22, 2006 | 04:51 PM

tim nick

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I am not familiar with this. What is it? Thanks

Dec 22, 2006 | 05:27 PM

Wilber15

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From: Duluth, MN

the Idle bypass motor. It is a little motor on the side of the throttle body that allows air past the throttle plate during idle. It is controled by the pcm to open or close depending on the TPS signal. It could be carboned up and sticking. Pull it off and clean the throttle body port where it fits into...