http://www.wellsve.com/ In this video you will learn just how an IAC stepper motor functions and how to diagnose and replace.
GM Idle Air Control IAC Function, Diagnostics and Repair
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I have a Silverado 6 litre that will stumble and almost stall only when the
temp is well below freezing. The engine does recover and after it warms up
runs fine. During the cold start in OL I have no fuel trim pids to check.
No codes set. I suspect a IAC that is slow to react in sub-zero temps. Any
suggestions on how to test the iac to verify this. Thanks , I quite enjoy
your vids.
keep them coming guys! thanks
Great video !
http://youtu.be/qMAUBU-6ErY
In this video you will learn just how an IAC stepper motor functions and
how to diagnose and replace.