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Stall After 10 Min

Discussion in 'Peterbilt Forum' started by TireProz, Jan 26, 2013.

  1. Jan 26, 2013 #1
    TireProz

    TireProz Bobtail Member

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    Jan 26, 2013
    0
    Hey Guys
    Trying to help a friend. He has a 2008 Peterbilt 8.6L .

    Temps have been Zero to 20 Below the last few days. His Pete starts right up and runs fine for about 10 min, then it dies. All the fuel filters have been changed, diesel 911, the tank flushed. Still after 10 Min the truck won't run. The coolant is good. After checking the fresh filters, it seems the filter on the right side is not getting fuel. How can that be? Put the truck in the heated garage, no problem. Leave it outside and after 10 min it shuts down.

    Appreciate your help
     
    TireProz, Jan 26, 2013
    TireProz, Jan 26, 2013
    #1
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  3. Jan 26, 2013 #2
    Mark Kling

    Mark Kling Technology Contributor

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    in garage no problem, but outside problem... sounds like a fuel line freezing.
     
    Mark Kling, Jan 26, 2013
    Mark Kling, Jan 26, 2013
    #2
    Chinatown Thanks this.
  4. Jan 26, 2013 #3
    Jimmbuds

    Jimmbuds Medium Load Member

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    Apr 20, 2009
    Daytona Beach, FL
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    Fuel isnt gelling is it?
     
    Jimmbuds, Jan 26, 2013
    Jimmbuds, Jan 26, 2013
    #3
  5. Jan 28, 2013 #4
    TireProz

    TireProz Bobtail Member

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    Jan 26, 2013
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    No, not freezing up. I think the problems lies in the fuel lines. As the truck is left at idle it sucks just enough air to loose prime. I think a bad seal or "O" ring may be to blame. Compounding the problem is 20 below zero at night.
     
    TireProz, Jan 28, 2013
    TireProz, Jan 28, 2013
    #4
  7. Jan 28, 2013 #5
    GrapeApe

    GrapeApe Road Train Member

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    Jan 7, 2013
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    Pull the fuel return line and add an extension hose to submerge in a bucket of clean fuel. If it's sucking air, you'll see the bubbles in the bucket.

    But I don't really think that's the problem, I don't know how that would be temperature related. I would try that first though, if it's not it, at least you eliminated it and can move on.
     
    GrapeApe, Jan 28, 2013
    GrapeApe, Jan 28, 2013
    #5
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