1991 s-10 with a 4.3 v6. Test light across negative terminal on battery to cable has a dead short. Short is worst with ignition switch to run. With off a slight short is still there which I can make go away by removing radio. I have checked ground and is good to block and chassis. Big short goes away when the wires (3 that bolt to terminal on back) of alternator are removed, but still present when wires are touched together without being on alternator. The wires go to the ignition switch, and the battery. I took apart the ignition switch and cleaned, no luck. I have full wiring diagrams and have traced wires to no avail, everything I check has no resistance. I know there is a short to ground, I know that it affects many cicuits (it started with the door jamb switch). The brake lights , the headlights,the cruise control switch, the radio, the dimmer switch, and the alternator is affected. I am very capable at tracing wires/ fixing shorts, but I am stumped. Any suggestions?
2007-05-19
14:17:46
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3 answers
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asked by
Anonymous