Chris,
I certainly could be the alternator. They use an array of solid state
diodes/rectifiers to convert the AC the generator produces to DC. If one of
the diodes fails, it will allow current to flow through it to ground. When
everything's turned off, try disconnecting the charging wire from the
alternator and see if it's drawing current. A multimeter is helpful for
diagnostics, but you can probably see a slight spark if it's drawing that
kind of current.
Bob
At 04:20 PM 5/4/00 -0700, Chris Vaught wrote:
>my gm alt puts about 15 volts and seems to charge fine. the battery goes
>dead over night. if I unhook the battery it holds the charge. a friend of
>mine said the alt was bad? could this be true?
>Chris in Hawaii
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