Ok folks, this is my last resort...
Over the last few weeks, my Grand Prix (3.4 DOHC) has only been charging intermittently. I have replaced the battery, serpentine belt and tensioner and I have put a reman. alternator (what a silly place to put it!) and it is not fixed, and I am running out of ideas to the problem.
It seems that the alternator when it is charging gives about 13.25-13.5 volts which doesn't sound like enough, when it's not charging, well, at that point it's just a matter of time before bad things happen.
My questions are...
Is the voltage regulator in the alternator or a separate if separate what is the likelyhood of it being bad?
Is there anything else that could be causing this at all? or am I going to be doing another alternator swap out this weekend?
Are there any tests I can do to try and narrow down the problem?
Any suggestions are gratefully received, I really enjoy driving this car...
Anthony