Question about 1999 Ford Expedition

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Battery not getting charged although the alterator is putting out.truck will run but kills battery after its been charged with a charger....gosport1@hotmail.com is my email.

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Does it die while running? Check the voltage at the battery with the truck running to see if it is getting the same voltage that the alternator is putting out. Will it not start after sitting for a bit? It could just be a bad battery not taking a charge because the lead plates or the terminal inside the battery is broken. You may also have a drain on the battery that is discharging it. You can check for a drain by disconnecting the negative cable and hooking a test light in line between th negative battery terminal and the cable. If the test light lights up bright, there is a drain and you can start pulling fuses one at a time to see what kills the light.

Posted on Apr 08, 2011

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