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Mystery battery dying problem

Discussion in '1st Gen. Tacomas (1995-2004)' started by andylee67, Sep 29, 2011.

  1. Sep 29, 2011 at 3:46 PM
    #1
    andylee67

    andylee67 [OP] New Member

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    upstate new york
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    We just purchased a 2003 prerunner and its awesome! Unfortunately, we have this one problem where suddenly the battery is completely dead...even the remote keyless entry doesn't work. The first time it happened, we checked the terminals, which were completely corroded. AAA jumped it and it started fine. We bought a brand new battery two months ago, and all worked fine, until today, when it suddenly wouldn't even turn over, just like last time. There is some yellowish corrosion on the positive terminal.
    Anyone know what could be causing this?? Help!!!
     
  2. Sep 29, 2011 at 6:54 PM
    #2
    wolfgang123

    wolfgang123 Well-Known Member

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    new terminals and check alternator
     
  3. Sep 29, 2011 at 6:57 PM
    #3
    achirdo

    achirdo I Weld!

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    Clean off them terminals with a wire brush and coca cola.

    Also go up to autozone and get that alternator checked.

    Or it could be a shit battery.
     
  4. Jul 16, 2013 at 3:05 PM
    #4
    budget76

    budget76 Active Member

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    soon want dual lockers Picture was my 85 dual arb great
    yea, connect a voltage meter (cheap harbor freight) and read voltage under start, run, off conditions. sounds like too high voltage. also once contacts are clean, use grease of type to protect them and cables. voltage > 14.5 will fry batteries and some electronics.
     
  5. Jul 16, 2013 at 7:18 PM
    #5
    Robertgeejr1

    Robertgeejr1 Well-Known Member

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    I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.
    I don't know if you have a v6 or a 4, b but one of the first maintenance items I did after I got my mine was a new battery, and new new battery cables. one easy thing to check and no cost, if its a v6 you should have 3 grounds. one ground from neg term to drivers side wall, one by the oil filter, and one from the back of the motor to back of engine bay, 2 of mine were covered with grime and dirt and took a wire brush and cleaned them good, and the one on the neg battery cable was gone so I replaced it, and it seemed to help her fire right up. I am not saying this would be the cause but its easy to overlook and easy to fix.
     
  6. Jul 17, 2013 at 7:10 AM
    #6
    tan4x4

    tan4x4 Well-Known Member

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    You could have a steady current drain, while the truck is off.

    Wait until dark, remove key from the ignition, and disconnect either battery terminal. If you see a spark as you touch the terminal to the post, then that could be your problem. There might be a very small (normal) drain due to the clock or radio. Not sure what amperage is abnormal, though. I'm thinking that if you actually HEAR the spark, then thats too much.
     
  7. Jul 17, 2013 at 7:33 AM
    #7
    SDSam

    SDSam from Dirt bike to Dezert Couch

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    this guys can explain it faster than i can type it, and will work better than what was suggested above.

    http://www.youtube.com/watch?v=KF1gijj03_0
     
    Last edited: Jul 17, 2013
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