Re: Is this the begining of a ground fault? - Saab 9000 Bulletin Board - Saabnet.com
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Re: Is this the begining of a ground fault?
Posted by Ben Millard [Email] (more from Ben Millard) on Wed, 11 Jul 2001 12:56:50
In Reply to: Is this the begining of a ground fault?, Chad, Wed, 11 Jul 2001 12:32:58
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Sure is.
This might be easily found:
Head to the back of the car, start looking for local grounds (wires terminated and attached to self-tapping screws in the body). Take them apart, clean the heck out the lug, washers, screw and threads. Reset with CAIG Laboratories Deoxit D5 or vaseline.
While you're at it, you might want to give the brake light bulbs and their attendant harness-connectors the same treatment.
True, the grounding problem is actually at the FORWARD end, but that might be harder to find.
It could be that sinking the voltage into the rotten grounding point is rasing the GROUND lead to the indicator light until it is HIGHER than the light's quiescent HOT lead. I'm thinking pedal switch -> bad ground point -> indicator light -> rear defroster ->...
Since you know what you're looking for, it is not impossible to fix. Try cleaning the ground distro point near the battery. Heck, clean the posi distro too! (You need a "Pink Pearl" pencil eraser, best contact-polisher out there. Use a brass-bristle brush to remove the heavies, then Pink Pearl them till they glisten, and leave everything with a faint coating of D5 or vaseline.)
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