Do a current draw test first, hook up an Amp meter between Bat (+) and power cable, with key off and doors closed you should only have.1 amps flowing, if more disconnect alt cable if amps drop you have a faulty diode in the alternator, if ok, pull fuses to isolate high draw circute. Have alternator tested as well.
Mark (mhpautos)
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Friday, December 28th, 2007 AT 10:41 PM