Question about 1997 Cadillac Catera

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1997 catera On some starups( maybe 10 out of 50) the battery will not charge, lights are dim and idling is rougher. Giving it a little gas starts the charging. If you drive away without giving gas when this occurs it will not charge. Restarting starts the charging. Otherwise the charging is fine according to the gauge.. However it has gone through 3 batteries in the last 2 years.

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Three things spring to mind... slipping belt,,,, voltage regulator or the alternator is going.... you can also unhook the connectors on the alternator... wirebrush them or gently sand them to ensure the best connection.... tighten them back up.... don't over tighten them as you can break a bolt off.


ps. usually the voltage regulator is built into the alternator... could be replaced seperately or you replace the whole unit.

Posted on Sep 01, 2008


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1997 catera

well Marie the reason your vehicle is acting this way is because even though you put new battery in you still have to have a viable altenator to run the vehicle. the battery is only used to start the vehicle and run the radio and lights and other accessories. while the vehicle is running the altenator is not only suppose to charge the battery but it is suppose to supply the amprage to energize and coolapse the coil to give the vehicle spark. a bad altenator while driving doesn't charge the battery it drains it . a quick check is to have the vehicle running and then remove the positive battery cable if it dies you know it's the altenator.... please rate this and good luck keep me posted

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