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Old 10-20-2009, 11:31 PM   #4 (permalink)
Old Mechanic
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Check for voltage drops at different points. Connect your volt meter's negative wire to the battery ground and check the engine, chassis, etc, to see if you have any voltage reading which should tell you where the grounds are weak. You should not see much if any voltage readings.

This is with the engine running.

If you read more than .25 volt you have probably found your problem.

regards
Mech
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