Alternator OK? Maybe Regulator?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

newbe351 · 08-18-2005, 06:21 PM

My 66 GMC will go through a period where it won't charge. I check all the wiring and belts, tighten stuff up, etc. to no avail. Then suddenly it will start working again while I'm driving down the road. Not sure if an alternator will perform like this not if it's on it's way out, or if maybe there's something wrong with the voltage regulator. Is there a check/test to see if it's the alternator or what??

Thanks

08-18-2005, 06:21 PM	#1
newbe351 Registered User Join Date: Dec 2004 Location: West Sacramento, CA Posts: 368	Alternator OK? Maybe Regulator?? My 66 GMC will go through a period where it won't charge. I check all the wiring and belts, tighten stuff up, etc. to no avail. Then suddenly it will start working again while I'm driving down the road. Not sure if an alternator will perform like this not if it's on it's way out, or if maybe there's something wrong with the voltage regulator. Is there a check/test to see if it's the alternator or what?? Thanks



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