Quote:
Originally Posted by VetteVet
Do a key off drain check.
Get a test light and remove the negative battery cable, connect one end of it to the negative post on the battery and the other end to the negative cable. Make sure all the truck lights are off especially the interior lights.
Does the light come on?
If it does, disconnect the large wire on the back of the alternator. Light on or off? If the light goes off then the alternator is draining the battery.
If it doesn't go off then start looking for a stereo wire that's still connected.
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I assume I need to have the battery charged to do this, correct? Interestingly, I had just downloaded the info on doing this test from the sticky section...
Also, see my questions above about other potential alternator issues... your thoughts?