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    geohuson's Avatar
    geohuson Posts: 1, Reputation: 1
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    #1

    May 8, 2007, 06:34 PM
    High voltage 1988 Dodge 3/4 ton Pick up
    I have a 1988 dodge 3/4T Pickup Voltage was above 18.1 at Idle, Auto Zone said that the internal Voltage regulator was bad in the Alternator. I replaced the Alternator, did not correct the problem. Where is the voltage regulator. What does it look like? I assume it is some kind of Electronic Black Box. Engine is V8 5.9L
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    May 8, 2007, 07:29 PM
    Often, they were separate boxes mounted on the firewall or inside fender. Here's what they look like:

    Zip Code Entry at PartsAmerica.com

    Follow the wires from the alternator.

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