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Old 08-23-2008, 11:07 PM
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pawoSD pawoSD is offline
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,025
I had that happen before when going through a lot of heavy rain.....then it went away. I'd get a voltmeter and check the system voltage when the car is on at idle.....and at maybe 1500rpm.....should be between 13.2 and 14V....if lower than the alternator or voltage regulator has an issue.
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