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drain test

  1. Parasitic drain with no obvious fuse

    Electrical / Lighting
    Hello. As the title states, my 2001 S10 with a 4.3 has developed heavy parasitic drain. It's enough to kill the battery if I leave the truck parked a couple of days. The alternator and the battery are both new, and had been working fine up until a couple of months ago. I put a voltmeter on it...