need some help with a problem,with the truck running, my lights pulsate. I have checked all the grounds I could find any no fixy. any other ideas? I had Autoo Zone check the Alt. And Batts. And they were Good
10 to 1 it's the voltage regulator. I replaced the alt in my 03 silverado wt and after about 500 miles it did the same thing. I had the regulator on the alternator replaced at a alt/generator shop and it hasn't done it since and that was over a 100kmi ago.
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