All is well when the car is running.Once it is parked,overnight, the battery goes dead. Where do I start to look for the problen?
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1998 Cadillac Seville STS Question: What could most likely cause the battery power to drain?
Answer #1torque wrench from Stewart's Auto Repair LLC, April 05, 2011, 21:27Master
Start with checking the condition of the battery, be sure it is fully charged. Cables clean and tight. Also have starter and alternator checked, they might have a short that is draining the battery. After that if you haven't found the problem, you can take the negative cable off the battery and attach a test light to the neg cable end and the other to the car body if the light comes on you have a short. Remove fuses one at a time until the light goes off. Then check everything on that circuit, that is where your short is.
Answer #2Cadi99 March 24, 2015, 19:07Rookie
Start your car and disconnect the positive wire from your battery. If your car dies, it is most likely your alternator.