Question about Sierra Voltage Regulators Voltage Regulator 5723 UPS System

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Starting probs Having fully charged the battery and put it on the car, the battery light goes out when the car has started but when I stop the engine the lit comes on again, does this indicate that the alternator is at fault?

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Ok.... quick test that you can do at your own risk as i'm told it is dangerous.... wear safety googles at the very least... start the car... unhook the battery.... if the car dies... it's the alternator... if it keeps running... it's the battery.... loosen the bolt on the battery post before you start it so it's easy to take off.... after you have removed the connector and determined which is at fault... don't hook up the cable again untill after you shut off the car.... what you need to guard against is creating a spark....


Posted on Dec 16, 2008

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