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Topic: Alternator light

in Forum: C4 General Discussion


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Alternator light (1/3)
 3/18/15 6:33pm
Rod1991
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Vette(s):
1991 C4 Corvette Quasar Blue coupe


Joined: 9/2/2013
Posts: 16

Got excited today and started the '91 in preparation for all the salt to be washed away off the roads here in Buffalo. Started fine but the Alternator light ( Battery Light ) stayed on and the Ammeter gage showed no charging when I revved the engine.
Does anyone have any ideas, cannot find any mention of a fuse in the charging system  . My C4 has only done 24000 miles, so alternator failure seems doubtful to me.


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Re: Alternator light (2/3)
 3/18/15 10:41pm
Adams' Apple
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Duncanville, TX - USA

Vette(s):
1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.


Joined: 3/18/2009
Posts: 2230

Check the electrical connections on the alt itself first. Sometimes just sitting can cause corrosion to form. Could also have some varmit damage.

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Re: Alternator light (3/3)
 3/20/15 6:19pm
Rod1991
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Vette(s):
1991 C4 Corvette Quasar Blue coupe


Joined: 9/2/2013
Posts: 16

Thankyou Adam, I'll give that a look.
I am guessing that I should disconnect the earth wire to the battery before laying a spanner on the alternator.
Haven't seen any evidence of critters, the garage is very secure.


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