Question about 2002 Cadillac Seville

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Battery temperature sensor

The car battery keeps draining over night along with cooler temperature drops at night also. As long as the temperature is about 50 degrees, the battery will barely start. When temperature falls below 50 degrees presents a dead battery.

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It could be either a bad battery or bad battery connections. Have the battery tested . Some auto parts stores will do this for free.check battery connections for signs of corrosion. Clean thoroughly before reinstalling battery. It may be a charging system problem have a garage test the alternator. Hope this helps

Posted on Dec 29, 2013

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Posted on Jan 02, 2017

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SOURCE: Cars battery drains every night. local car repair

One by one, disconnect the fuses until you see no change on a volt/ohm meter connected to the battery with the engine not running.

Posted on Mar 06, 2010

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SOURCE: battery keeps dying in the middle of the night

have the alternator checked it could test good and still be bad but it can also drain the battery 9 times out of 10 its the alternator thats draining the battery

Posted on Feb 01, 2009

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    0900c152801c11fb.jpg

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      0900c152801c1206.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Coolant temperature sensor illustrated
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