Question about 1985 Chevrolet K1500

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I know the alt. has a external voltage reg, but where is it

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  • Ricky Gittins
    Ricky Gittins Apr 24, 2009

    It is in the computer..(powertrain control module
    ) [P.C.M.] most vehicles with electronic engine controls have the regulator in the brain.......I found this on line



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  • Chevrolet Master
  • 14,036 Answers

Its on the back side of alternator.or on the fire wall .look at wires on alternator follow them.if they go to a little box on fire wall that it. if you see no little box any where the voltage regulator in the alternator.

Posted on Apr 24, 2009

  • Jonah Oneal Apr 24, 2009

    voltage regulator is part of alternator.pcm is the computer it controls .fuel injectors timing spark timing transmission shifting.idle speed control fuel trim.a voltage regulator keep a alternator from over charging.

  • Jonah Oneal May 03, 2009

    your voltage regulator is in the alternator.i check it out .that year car had voltage regulator on the out side and inside alternator.



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