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where is the voltage regulator located on 1997 gmc yukon

on 1997 GMC Yukon

my lights go dim and then they get bright and go dim again

Asked by for the 1997 GMC Yukon
inside the alternator. have it checked to confirm.

Roy
1 more answer , 1 more comment
it is on the back side of alt
be carefuul. do not recomend you do not touch this. I would replace the entire alternator rather than just the regulator.

Roy