95 Chevy Lumina APV

[driver540]

95 Chevy Lumina APV vin L 3.8 liter. Having problem with intermittent voltage control. Has new alternator and body control module. There was a recall on the aftermarket alternator and had it replaced again. Can watch voltage go from 8v-13.5 and sometimes stay off at 8v. I suspect the PCM because voltage regulator control is powered through it. Any thoughts?

[driver540]

Got it fixed. The PCM fixed the problem. Of course I was in a hurry and forgot to switch the E-prom from the old one to the used PCM I picked up. Had an oopsy moment. Switched the E-prom to the other PCM and all is good again.

[re-tired]

Yea thats it the PCM . I was just getting ready to suggest that [smilie=pdt_al.gif]

[driver540]

I think its gonna be a week for electrical headaches. Now I have a chrysler mini van in the shop that lost control power to everything including the ECM. I hate diagnosing Chryslers! :roll:

[re-tired]

Ok we have the make , now if you would kindly provide model, year and eng size . I know you just forgot [smilie=pdt_au.gif]

[driver540]

Got it under control now. Had a brain fart. Timing belt broke. Thanks for all the quick responses. Try to stay cool while reelin in them big ones.