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Electrical problem

Discussion in 'GM Electrical Tech' started by redvr4, Jun 20, 2010.

  1. redvr4

    redvr4 New Member

    I have a 97 GMC Savanah, big V8. The battery started discharging. Had the alternator tested in the van, it showed a bad diode. Changed the alternator, idler pulley, belt tensioner and belt. Problem still exists. Does anyine know if there is another regulator on this vehicle besides the one in the alternator?

    Bill Davis
     

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