Question about 1994 Cadillac Seville

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Electric problem Lights and electric surges Ihave replaced the alternator and it still has not changed

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This could be a factory wire harness problems, generally over time the plugs ie connections get warm and tend to crack causing shorts which can lead to electrical fires i would check all connetores under dash and on main harness in engine compartment for discoloration which is a good indicator of a problem.

Posted on Aug 27, 2008

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Surging problem on an alternator


If the voltage varies a lot or the lights change brightness, then the voltage regulator in the alternator is bad. Left unchecked, instrument lights and any other light bulb can burn out including head lights and brake lights. It can fry automatic ac controls, destroy the radio etc. Get your alternator replaced quickly.

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That would also make your lights flicker as those power surges shot through the battery and rest of the car. Check all the wiring to the starter and alternator from the battery, and also the battery ground. Rotted wires will be apparent now after that kind of problem, and if so then NOW is the time to replace them.

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