I have a 2005 Yukon with psssible PCM issues

Asked by Jul 03, 2017 at 11:44 PM about the 2005 GMC Yukon SLE

Question type: Maintenance & Repair

My Yukon has been acting up first the engine hour meter reset itself and then
the charging meter is fluxuating.  The fluxuation follows the actual voltage at
the positive terminal of the alt. and I have replaced bot the alt. and battery.  
Have also tested both in isolation and under load.  both work like a champ.  I
think it may be the PCM.  Has these set of circumstances been seen by you
before?  Want to get confirmation before spending $300+ bucks for a reman
PCM.

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