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Re: PCM going bad MAYBE
replaced my pcm today and disconnected my a/c wiring set up and started the truck. At 195 the fan came on then after cooling went off, works perfectly. So I conclude my pcm fan function on my old pcm went bad. Not sure what caused it but going to drive it with no a/c for a week or two and see how it reacts. then I will decide how to wire my a/c fan function back into it.
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