Question about 1997 Cadillac Seville

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Charging is not charging right. I have had the alt. rebuilt twice and a new alt put on. Two weeks ago I put a new heavy duty battery on it. Every time I have it worked on it will put out 14 or more volts for about two weeks then it starts dropping to as low as 11.8 volts. When it drops below 12.3 the shifting indicator lights will flash and the temp gauge stops working and the anti theft system problem will show. After I turn it off and let it set for a few minutes and restart the volts will return back to 13.5 or better. Turning on the headlights on seems to have a major affect. Please help!!

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You have a faulty Voltage Regulator or relay in the power Distribution box under the hood.

Posted on Dec 29, 2010


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