Electrical/alternator question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lippyp · 01-22-2003, 08:58 AM

The previous owner of my truck fitted an aftermarket voltmeter as the stock ammeter in the dash is dead. I looked at it today and I seem to be getting about 14/15 volts showing. Is this normal or is it too high? I have a multimeter that I can check the real output to eliminate the gauge being inaccurate (it is a cheapo gauge) where should I test this (across which wires, at alternator or voltage regulator?) Is it likely to be the voltage regulator on the way out as I still have the original setup or is it likely to need the points adjusting or cleaning? I've always been a bit vague on the charging system side of things!

All help appreciated.

01-22-2003, 08:58 AM	#1
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	Electrical/alternator question The previous owner of my truck fitted an aftermarket voltmeter as the stock ammeter in the dash is dead. I looked at it today and I seem to be getting about 14/15 volts showing. Is this normal or is it too high? I have a multimeter that I can check the real output to eliminate the gauge being inaccurate (it is a cheapo gauge) where should I test this (across which wires, at alternator or voltage regulator?) Is it likely to be the voltage regulator on the way out as I still have the original setup or is it likely to need the points adjusting or cleaning? I've always been a bit vague on the charging system side of things! All help appreciated. __________________ Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission Last edited by Lippyp; 01-22-2003 at 09:03 AM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.