Question about Cars & Trucks
Battery doesn't seem to hold charge although when battery was tested it came out OK. It does turn over in the morning (cold weather) and eventually will start but has also been completely dead several mornings. Could this be the alternator?
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Posted on Jan 02, 2017
SOURCE: Car Battery draining over night
Something is shorted and it could be very difficult to find sometimes. It could be something as simple as a button being pressed when it shouldn't turning on a light or feature that runs all the time, but in a 2001 that is unlikely as it should turn off all lights after a certain period of time. It could be something in the radio. What I suggest is to pull one fuse at a time for accessories, check your manual for what each fuse powers. If the battery still drains with that fuse out then put it back in a pull another. When you find the fuse that allows your battery to keep it's charge then you will have a much smaller field of offending components.
For example, if you pull the fuse that powers the radio and heater, and the battery keeps it's charge then you know it is either the heater or radio causing your problem.
This can take a few weeks to do completly but won't cost you a penny to do.
Posted on Jun 09, 2008
SOURCE: 95 jeep grand cherokee laredo
the best way to look at this problem is with a12 volt test light then remove the ground cable from the battery turn every thing off inside the car close all doors and remove keys then connect testlight to battery cable and touch the test light point probe to the negitive battery post if test light lights up for more than three seconds and stays on you have draw on the system. dont panic it maybe just a glove box light or door switch. if suspect a circuit simply un hook it retest again .if you open a door that will make light test come on recheck all doors closed. if you still have test light on locate fuse box and remove one fuse at a time until test goes out while holding door switch in.when locate circut use wiring diagram to assist from ther. if the light does not light up check altenator output volt meter shoud be 13.2 -15.5 volts when running.
Posted on Dec 13, 2008
In my case, the instrument cluster was bad, causing the MFI display and radio to go haywire and putting a contstant drain on the battery. $760 to have the VW shop replace it. No problems related to the battery or alternator have occurred since.
Posted on Apr 23, 2009
SOURCE: Starting - no crank -
Try a different key, the chip in the key is probably bad creating the vehicle not to crank as the exciter ring cannot pick up a signal from the master key.
Posted on May 11, 2009
Sounds to me that your battery has shorted out and will not take a charge.Disconnect the battery and try to charge it, then check to see if it has taken power with a volt meter. A shorted battery will take all the power from the alternator and run it to ground leaving no power to run the car. Also check the alternator output with a volt meter after you have checked the battery as a shorted battery can burn out the alternator.
Posted on Oct 08, 2010
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