Thread: Battery Draining

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Like Hoss says, the spark will tell you if you have current flowing with key off, doors closed, everything off. You can also put a 12V test light (mine's a 1057 bulb with a couple of wires soldered on) between the negative post and the negative cable, and if it lights bright you've got a short - a dim glow may be your radio, clock or ECM drawing a very slight current which is normal. With the light glowing bright you can start pulling fuses one at a time, watching the light to see when it goes off. That fuse will ID the circuit that has your short, and you can start troubleshooting only that power group. Be sure you shut your door or tape your dome light switch while you're pulling fuses....how do I know this to be a problem???