Battery Keeps Draining!
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This is a discussion on Battery Keeps Draining! within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; ok heres the deal, it started last winter in michigan, i noticed my volts would go from 14 to 11.5-12 ...

  1. #1
    Registered User mangiardi83's Avatar
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    Question Battery Keeps Draining!

    ok heres the deal, it started last winter in michigan, i noticed my volts would go from 14 to 11.5-12 when the engine idles. and if i dont drive the car every day the battery will drain and be dead, i take the battery to autozone and recharge it and then it works fine. all the lights dim as well,as soon as i give it gas the volts jump back up. do i have a relay problem? i do have gauges could one of the grounds for those be messed up? maybe a fuse? please help!

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    Registered User WRXDriver82's Avatar
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    Did autozone test the battery? Maybe its a bad cell...
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    Registered User mangiardi83's Avatar
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    yep autozone tested it after they charged it.it is good it has to be something electrical.but i dont kjnow what .

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    Registered User blarg's Avatar
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    did you by the car used?

    could be an alternator underdrive pulley.
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    Quote Originally Posted by Blarg
    go f*** yourself

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    Administrator TheJ's Avatar
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    Quote Originally Posted by blarg
    did you by the car used?

    could be an alternator underdrive pulley.
    That's what I was thinking.
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    Registered User mangiardi83's Avatar
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    brandnew 05 had this problem last winter, then in spring blew the motor(subaru voided my warrenty) and just got it back with a sti 2.5 short block. and its still doing this

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    Registered User blarg's Avatar
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    Quote Originally Posted by mangiardi83
    brandnew 05 had this problem last winter, then in spring blew the motor(subaru voided my warrenty) and just got it back with a sti 2.5 short block. and its still doing this
    you COULD have said that up front.
    ScoobyDMC #009 - making dirty jokes since before you were making dirty diapers.
    Quote Originally Posted by Blarg
    go f*** yourself

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    Administrator TheJ's Avatar
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    Quote Originally Posted by mangiardi83
    i do have a underdrive pulley but that may explain the volts going up and down but why the batt draining when it sits for a couple of days
    Quote Originally Posted by mangiardi83
    brandnew 05 had this problem last winter, then in spring blew the motor(subaru voided my warrenty) and just got it back with a sti 2.5 short block. and its still doing this

    Quote Originally Posted by blarg
    you COULD have said that up front.
    +1
    Last edited by TheJ; 09-18-2006 at 10:49 AM.
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    Registered User mangiardi83's Avatar
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    i do have a underdrive pulley but that may explain the volts going up and down but why the batt draining when it sits for a couple of days

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    Registered User blarg's Avatar
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    do your gauges operate when the car is off? if so, then you hooked them up to constant power rather than switched power.

    sounds like you hooked SOMETHING up to constant power that shouldn't be...and the underdrive pulley is what's making your voltage drop at idle.
    ScoobyDMC #009 - making dirty jokes since before you were making dirty diapers.
    Quote Originally Posted by Blarg
    go f*** yourself

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    Registered User mangiardi83's Avatar
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    you know what i think you are right, it has to be the gauges now i have mine hooked up through the center dash clock wiring is there a better place?

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    Registered User blarg's Avatar
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    Quote Originally Posted by mangiardi83
    you know what i think you are right, it has to be the gauges now i have mine hooked up through the center dash clock wiring is there a better place?
    the clock harness is the best place to do it..however, the clock harness has both switched and unswitched power...maybe you just tapped the wrong wire. you want the one that has no power when the ignition is off.
    ScoobyDMC #009 - making dirty jokes since before you were making dirty diapers.
    Quote Originally Posted by Blarg
    go f*** yourself

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    Registered User mangiardi83's Avatar
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    ok would you happen to know the color, or i can get a voltometer and find it thanks

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