alternator out ?

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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, alternator out ? in Cadillac Escalade Forums; was working on boat this weekend, listening to radio in truck, maybe 2 hrs tried starting after and would only ...
  1. #1
    wetneck is offline Cadillac Owners Member
    Automobile(s): 03 EXT
    Join Date
    Mar 2013

    alternator out ?

    was working on boat this weekend, listening to radio in truck, maybe 2 hrs
    tried starting after and would only half crank
    tried few more times and same, never enough to spin it over
    got a jump from neighbor, quick n easy
    NOW my volts show like 12.5 at idle,falters some and jumps right to 14 where it always WAS prior at anything above idle
    batt tests at 12.5, terminals snugged up
    did i toast my alt with the jump?
    anything else to check ?
    and no errors on display

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  3. #2
    BIG-KO is offline Cadillac Owners Member
    Automobile(s): 2003 escalade
    Join Date
    Mar 2014

    Re: alternator out ?

    Charge the battery with a charger. The alt. will maintain the battery but it's not designed to "bring it back from the dead" so to speak.

  4. #3
    the cadillac man's Avatar
    the cadillac man is offline Cadillac Owners 10000+ Posts
    Automobile(s): 03 cadillac escalade
    Join Date
    Mar 2011
    speedwell tn,
    I second charging the battery
    I have been in your position before and have learned to start the truck if I am sitting and listening to my tunes if over a certain amount of time

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