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1project2many · 06-21-2021, 04:01 PM

I've also seen that type of result when there's a wire that is chafed or pinched. In that case if you ignore the wire long enough it usually gets worse.

Alternator voltage to about 14.5V should be ok. But if the wire is connected to the alternator that means it's also connected to battery. You should change it to ignition power.

06-21-2021, 04:01 PM	#12
1project2many Registered User Join Date: Mar 2012 Location: Lakes Region NH Posts: 3,158	Re: 56 Chevy temp gauge I've also seen that type of result when there's a wire that is chafed or pinched. In that case if you ignore the wire long enough it usually gets worse. Alternator voltage to about 14.5V should be ok. But if the wire is connected to the alternator that means it's also connected to battery. You should change it to ignition power.