Question about 1993 Volvo 940

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Battery is dead after a nights something is draining it or left on. nothing appears to be on but then again i could be missing something on a foreign car.

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Could be a bad voltage regulator or something that is missed is. do you have the lights in your visors around the mirrors .if so make sure they are not on

Posted on Nov 07, 2012


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Posted on Jan 02, 2017

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SOURCE: occasional dead battery

Have you added anything lately?
Have the alternator, wiring and belt checked by the the place that installed it.
Check the battery connections. Are they tight? Are they corroded?
If there is a short somewhere it my be difficult to find. You may have to take it to a mechanic.
One more thing you can do is at night start the car turn everything on and shut the car off. Get out and walk around the car to be sure nothing stayed on. Do the same inside.
Good luck!

Posted on Oct 12, 2009

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SOURCE: after turning off my car the next morning my

Make sure you check for moisture spots around the battery. It may be leaking and it might not be holding a charge. Make sure the terminals are cleaned and very tight on the ends. Sometimes, the end needs put on better. It may be your alternator draining your battery. You can check like this. Start your car and take the hot side battery terminal off. If it dies instantly, your alternator is bad. You will usually see dimming lights outside and in the cab. Scan the battery wires. Make sure nothing is loose.

Posted on Feb 26, 2011

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