Question about 1993 Jeep Grand Cherokee

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1999 cougar voltage regulator needs checked how do I do this

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Put a multimeter on dc. Place the probes on the battery terminals. You should see between 13.2 and 14.8 volts with the engine running. Do this at idle and while you rev the engine too be sure the voltage regulator is not under or over charging the battery

Posted on Dec 31, 2013

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I have a1979 Mercury Cougar RX7 and can't find replacement voltage regulator.It has a factory amp gauge so it doesn't take the regulator listed at the parts places.Do I need to rewire it ?


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if it is a short, you can lift the carpets in the trunk, or remove the front bucket seats and lift the carpets in the interior. it may also be a bad voltage regulator in your alternator, in which case you will need a new alternator. you can test your voltage with a voltometer, and see if your alternator is producing more than say 15 volts while running.

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