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Q: my battery light stays on

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I changed the battery and alternator and the battery light has stayed on and the temp gauge goes up and down what else could be the problem thanks

My car has 99485 miles.
My car has an automatic transmission.

You need to check to make sure the large power wire to the alternator is getting power. If it is not then you may have to check the wire from alternator to the battery fuse box for burned out wires and main fuse links. Also check fuse 2 a 30amp in engine compartment and fuse 15 a 10amp fuse in the passenger compartment fuse panel.

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