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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What is involved with replacing the oil pan on 1998 GMC Sierra?

  • Step 1 Raise the truck using the proper equipment. Use a ramp or a jack and jack stands to support the vehicle securely by following all directions for use provided by this equipment's manufacturer.
  • Step 2 Drain all oil from the Silverado by placing an oil drip pan under the vehicle's engine block, directly under the oil drain plug. The drain plug is located on the oil pan, between the vehicle's tires underneath the vehicle. Use a wrench to loosen and remove the plug allowing the oil to drain into the pain below.
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    4.2L Engine To Remove:
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    3. Disconnect the engine coolant temperature (ECT) sensor connector. Engine coolant temperature sensor removal and installation gm-04-42-1509.gif

    4. Remove the engine coolant temperature (ECT) sensor from the engine.
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    Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

    1. Drain the engine coolant.
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      0900c152801c1206.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Coolant temperature sensor illustrated
      Coolant temperature sensor illustrated

    To install:
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    If helpful, click below, good luck.

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