Overcharging issue...hissing battery
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Senior User
Joined: Jun 2006
Posts: 292
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From: Phoenix, AZ
Overcharging issue...hissing battery
My '77 seems to be having a overcharging problem. My ALT gauge was acting up, hooked my volt meter to the battery while the truck was running and I get spikes of 17 volts, but usually stays at 16. Threw a voltage regulator on it, cleaned the base where it's mounted....no change. While idling, the gauge is fully pegged to the "c" side, but when I rev it up the gauge drops and fluctuates between the center and "c", then I drop it back down to idle and the gauge pegs again.
whats the deal?
whats the deal?
Elder User
Joined: Dec 2007
Posts: 739
Likes: 1
One of the nasty side effects of poor grounding with the block and to the alternator is some highly weird charging problems. Friend of mine has a '72 Stang and he had nothing but problems with his charging system. Turns out after replacing the regulator and the alternator? Problem was a very screwed up crimp connection at one of the main grounds.
Just food for thought--It could be the alternator as well....but always check the basics.
S-
Just food for thought--It could be the alternator as well....but always check the basics.
S-
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