A friend of mine in another state is looking at a van with an "intermittent" charging issue. The guy selling it claims to have cleaned all the grounds and connections, then changed the alternator. Now he's ready to try a new PCM on someone's recommendation.

I'm not real familar with this era's mix of old/new parts, but I assume the voltage regulator is within the PCM. Then again, an intermittent problem sure doesn't sound like a PCM issue.

Any suggestions beyond all electrical connections and perhaps a new battery?