Truck from hell

Discussion in 'Chevy Truck Forum' started by Jprice2ndlt, Jan 11, 2017.

  1. Jprice2ndlt

    Jprice2ndlt Full Member

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    I have been blessed with the truck from hell. New motor new transmission worked on all sorts of stuff on it. Well I had problems with it cranking so I replaced the battery. I have already replaced alternator and starter. I checked everything after I replaced the battery output from alternator was 14.7 and chrged good. Well I went to get gas today truck cranked fine but after fueling up it struggled to crank. Came home and checked when I tried to crank and it dropped to 8.9 on new battery what could be going on
     
  2. Kennyray

    Kennyray Moderator
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    It sounds like you have a parisitic draw some place. Use an amp meter to check for draw and pull one fuse at a time til you find the culprit.
     
  3. dirtrider73068

    dirtrider73068 Moderator
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  4. Jprice2ndlt

    Jprice2ndlt Full Member

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    It fires up fine cold but when it gets hot it drains it
     
  5. dirtrider73068

    dirtrider73068 Moderator
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    Maybe a relay sticking on when it gets hot. I would run the test cold see what the results are then drive it get it hot run the test again see what difference there is and do like he does see what the problem is.
     
  6. leolkfrm

    leolkfrm Full Member

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    what year was it?, timing too far advanced will do that
     
  7. Jprice2ndlt

    Jprice2ndlt Full Member

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    It's a 94 honing to check timing tomorrow when I get of work. It's possible that it could have jumped. Would advanced timing make my alternator read low output
     
  8. leolkfrm

    leolkfrm Full Member

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    #8 leolkfrm, Jan 12, 2017
    Last edited: Jan 13, 2017
    low idle would drop alt, advanced timing could make it turn over hard hot, dont forget to disconnect the wire on firewall to set base timing
     
  9. Jprice2ndlt

    Jprice2ndlt Full Member

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    Checked timing today and it was dead on
     
  10. dirtrider73068

    dirtrider73068 Moderator
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    The timeing on these before obd2 where thet can be adjusted really don't matter to much where you put it the ECM will adjust for it if its close, I tried this myself, to adjust it just a tad advanced once set and ran checked and it wasn't advance but hitting dead on so trying to advance or retard the timeing a tad the ECM won't do it.
     

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