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Car Batteries

What is wrong if your car has a new alternator and the battery seems to be OK but it keeps blowing fuses and no warning lights go on when starting?


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Wiki User
2005-02-16 05:37:54
2005-02-16 05:37:54

you most likely have a loose or unattached ground wire to some major component.

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yes if one of the wires was getting an earth from the alternator cover or rubbing off the engine the battery light is really an alternator light warning you that the alternator is not charging the battery

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Your alternator is defective and not recharging the battery. Have the alternator checked.

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When it is no longer able to keep the system charged. Starting with 2001 model, when the car is started, if you see either the battery warning or the battery along with the brakes warnings on, or intermittently flashing on, you need to have your alternator checked. Otherwise, its fine.

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check the alternator. Use a digital multimeter and with engine running you should have 13-14 volts at the battery. If less than 12.5 Alternator is not charging Also check the amperage the alternator is putting out.


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