Where the hell is the dam &(*&^% Dezx-Cool Leaking from.

Discussion in 'GMC Truck Forum' started by SQBADOG, Oct 8, 2016.

  1. SQBADOG

    SQBADOG Full Member

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    Ok, so we can move past my opinion about Dex-Cool.

    On my 2004 5.3XL, 1500, I blew the orange stuff all over the place. So when I got home, filled it, pressure tested it and...Nothing. nada. No problem. Drove if for a week, no problem. This AM, dex-cool all over the drive way.

    There is no obvious place where it is coming from. not leaking form Water pump, Thermostat is two years old. But it's coming form somewhere.

    Obviously will get a new cap, but what am I missing?*
     
  2. dirtrider73068

    dirtrider73068 Moderator
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    Is it getting hot from a sticking tstat and blowing out the overflow tank? If it builds too much prsssure the rad caps are made to release the preasure. I would run it and watch it see where its coming from or if its building too much pressure and the cap is letting it out. Can also test the tstat put in pot of water and start heating it up and watch temp of water see when it starts to open and if it fully opens.
     
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  3. MrMarty51

    MrMarty51 Full Member

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    YES on what D.R. is saying. That`d be the first culprit to get out of the way.
    If more problems persist after that then please reply back, please reply back even if that fixes the problem.
    Thank You
     
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  4. SQBADOG

    SQBADOG Full Member

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    So the culprit is the water pump. Is this something I need to fix right away or just keep adding fluid to it till i have time? How much time do you think for this?
     
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  5. dirtrider73068

    dirtrider73068 Moderator
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    Shouldn't take long but look at the dam hub is it screwed onto the water pump? If its one of those its a beotch to get off. I had to change the water pump on a 94 towncar used the belt to hold the water pump to screwed the dam fan from the water pump then used belt to snug it back.

    If its like the old style where fan has 4 nuts its takes no time about a hour at best.
     
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  6. MrMarty51

    MrMarty51 Full Member

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    I would not run it any farther than absolutely necessary until the pump is changed out. You just never know, It might run like that for years but then, it might go the next time it is drove.
     
  7. SQBADOG

    SQBADOG Full Member

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