Question about 2001 Chevrolet Cavalier

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Somethings draining my battery, not alarm ,new alt

When i let car set 2 days have to have a boost to start it

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  • NODRAMA1950 Oct 14, 2008

    thanks do you anything about this control mar?
    WHEN I LEAVE MY CAR PARKED FOR MORE THAN 2 DAYS SOMETHING PULLS THE BATTERY DOWN I HAVE A NEW BATTERY AND ALT. IT IS NOT MY ALARM SOMEONE SAID IT COULD BE MY BODY CONTROL MAR IS THIS POSSIBLE/ THEY SAID IF I START IT

  • NODRAMA1950 Oct 14, 2008

    just bought a new battery whenever it wont start i take it to be checked and they just tell me it needs chargeing and the battery is good and that something is draining it down but what??????????????

  • ampur09 Mar 01, 2009

    Whenever my car (Cavalier Z24, 2001, 72K miles) sits for more than a couple days, it will either need a jump or battery will be completely dead and not start, not even a crank or click sound. Jump it and it's fine for another couple days. Never used to do this.

  • Anonymous Mar 21, 2014

    tester showed short on #3 maxi fuse in the engine compartment, batterie drains, innova scanner shows fault in the passenger side body function control module, car alarm stayed on, got new batterie alarms stoped then fuel and temp guage,brights indactor stoped working,when we tapped the module it chimed once in awhile. question:do i need more testing if not how to correctly install the module #3fuse is for left hand elect. center-stoplamps,body function control module,cluster,climate control system haz lamps also is it the module on the passenger side that needs to be replaced.

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Have you load tested the battery and or replaced it.Might be something simple like a glove box light or trunk light not shutting off and you cant see it due to thier location.Do you have a stereo amplifier?

Posted on Oct 14, 2008

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If you have a multimeter with a 10 Amp range, you should try the following: - Locate the master fuse box/center. - Turn any electrical item off that you can.  - Set the meter on the (normally separate) 10 Amp scale; connect your leads to the meter. - Detach the negative (ground) clamp of the battery, fasten (your option how) the positive meter lead to the removed negative cable, the negative meter lead to the negative battery terminal. If the meter instantly pegs, remove the leads, the range is too low and these are never fused in the meter so will do damage to the meter if left connected. 
(If you have no cheap digital multimeter, these can be had for <$20 US at auto parts stores or electronic shops such as Radio Shack. Look for the 10 amp range but most have it.)  
If there is (and there will be) an in-range (not pegged) measurable current draw, start pulling one fuse and replacing it going through them all until you see a noticeable drop in the indicated current.
Once you have isolated the guilty circuit, then you can start seeking the cause of the drain.
The problem you describe is, in fact, a common one when the (albeit new) alternator has a defective diode that represents a permanent load on the battery. It wouldn't be the first 'rebuilt' alternator to have not been thoroughly tested before it was boxed and sold.        

Posted on Oct 14, 2008

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Turn on ur car let it run then take the hot wire off the battery and it still runs then you have a powerssoucre such as an after market radio or just a hot wire to something thats giving it constant power and draining ur battery

Posted on Oct 14, 2008

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Unhook your battery each night to keep from draining the battery whilst you search out the problem.
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Welcome to FixYa.com



You have a drain on battery. Check glove box light to see if it stays on truck light and under hood light if one



Thank you for using FixYa.com

Regards, Lee Davidian

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there are not a lot of computers that could be causing the drain, so baring any aftermarket accessories you should start searching for an indirect short to power

prop hood and leave the doors open... this is important because you do not want to wake the computers once you start your test

next, unplug the negative battery cable and insert a DVOM in series

drain should be less than 80mA after 30-90 minutes

if drain is higher, start pulling fuses until the drain is isolated

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