Got a 87 z24
check the battery next and the battery cables.
I've checked everything and I did the fuse test where you take the neg. off the battery and put a test light in between the battery and the wire and the only fuse that makes the light dimmer is the interior light/cigar lighter but I havent had that fuse in for months so I don't think that one is draining so could it be the diode in the alt. Even if the alt. Checked good
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