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IAC question

alphabets13

Explorer Addict
Joined
January 27, 2002
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Year, Model & Trim Level
2004 Mountaineer Premier
right after i started the X today it stalled. before it stalled, i noticed quickly that the rpm and battery guage were fluctuating. this has done this for about a month now, but this is the first time it ever stalled.

the weird part is, it only does this fluctuating maybe once every 10-15 times i start it. i usually just rev it a little and then the guages even out, or once i begin to drive they even immediately.

if in fact it is the IAC, which i already replaced about 2 years ago, why does it only do it every so often and not every time i start it up?

i'm going to clean it tomorrow with some carb cleaner, maybe it will work.

i also noticed though sometimes that when i take the car out of park or neutral, and put it in reverse or drive, the rpm guage drops to about 500 until i start moving.
 






Not sure why it happens, but mine does the same thing. A little carb cleaner should do the trick! In about 6 months the cleaning usually has to be repeated.
 






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