Thread: Charging issues
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Old 01-13-2018, 02:27 AM   #10
VetteVet
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Location: Kalamazoo, Michigan
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Re: Charging issues

Quote:
Originally Posted by Rac65 View Post
I have a new alternator and voltage regulator and all my wires seem to be good but with the engine running voltage at the battery is only 12 volts. I took the alternator back to Auto zone to have it tested and they say it is good. I can put my meter on the post on the back of the alt. With it running and it still only shows 12 volts. Any advice on what to do next?
Pull the small plug off the back of the alternator and check the white wire with your meter. Key off--zero volts Key on--12 volts.

The blue wire should show 12 volts with the key on or off.

Make sure the alternator is grounded, the regulator is grounded to the shroud and connected to the alternator.

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