Auto Repair - Roadshow forum

Question

2004 pontiac grand prix

Car died while running an battery is being drained fast changed to another battery and is doing the same thing also may need to change fuel pump no hum sound when Turing over car.

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All Answers

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Answer
fuel pump runs on electric

In reply to: 2004 pontiac grand prix

battery goes dead, so does the fuel pump. You have a problem in your charging circuit. I hope you cleaned the scale off the battery cable clamps, because that scale can create enough resistance to stop the battery from charging.

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Answer
PS

In reply to: 2004 pontiac grand prix

the thick battery cables are mainly for the starter use. You should see a second cable with a fusible link, and that may be the one the charging from alternator comes through to the battery. Check it.

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