Having voltage issues with my 93 cadillac seville I've replaced the battery and had the alternator checked and the voltage keeps going down to 12.9 and under until it dies.

Asked by Sep 06, 2014 at 08:26 AM about the 1993 Cadillac Seville STS

Question type: Maintenance & Repair

3 Answers

34,165

It's the alternator. The alternator is the only thing that provides electricity to the vehicle. So if you're losing power it has to be that.

34,165

To be more precise. It the voltage regulator. The voltage regulator is built into the alternator.

94,995

So if the alternator tested good then you have a charging system wiring problem, make sure the connectors are clean no corrosion. Check main fuses, etc.

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