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help ,battery keeps going dead

Discussion in 'Intermediate CJ-5/6/7/8' started by wildman, Mar 22, 2006.

  1. Mar 22, 2006
    wildman

    wildman New Member

    Joined:
    Mar 22, 2006
    Messages:
    1
    :? hi im posting this for my cousins 74 cj5
    heres the problem the damn battery keeps on going dead.
    we replaced the alternator and the battery, there is a amp light on the dash that stays on all the time, even if the key is out. can anyone tell me what this amp light is for. can it be the voltage regulator. even if he drives it for a hr. parks it for a bit, the battery drains(and we tried it with other batteries) it wont start.
    thanks
     
    wildman, Mar 22, 2006
    #1
  2. Mar 22, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    A bad voltage regulator can do it, as can a bad connection. Teh best way to track it down is to turn everything off, and with an ammmeter in the main battery circuit, pull one fuse at a time until the load disappears. That is the bad circuit. If you have access to an oscilloscope, you can also look at the AC waveform right at the battery terminals while running to see if there is a shorted diode in the rectifier circuit.
     
    w3srl, Mar 22, 2006
    #2
  3. Mar 23, 2006
    sagegoat

    sagegoat The good life........

    Vernal,Utah
    Joined:
    Mar 4, 2006
    Messages:
    251
    I had the same problem!:mad: My 74 was wired as a 72/73. You probably have the motorola alternator, external voltage regulator,starter relay? When the motor is running and you pull the battery cable off it dies?
     
    sagegoat, Mar 23, 2006
    #3
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