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95 379 Pete with NO heat

Discussion in 'Peterbilt Forum' started by MrsParker, Jan 25, 2011.

  1. Jan 25, 2011 #1
    MrsParker

    MrsParker Bobtail Member

    3
    0
    Jan 25, 2011
    Candor, NY
    0
    Anti freeze is full! Ideas or suggestions?
     
    MrsParker, Jan 25, 2011
    MrsParker, Jan 25, 2011
    #1
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  3. Jan 25, 2011 #2
    123456

    123456 Road Train Member

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    Oct 22, 2010
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    Open the valves !!!!
     
    123456, Jan 25, 2011
    123456, Jan 25, 2011
    #2
  4. Jan 25, 2011 #3
    MrsParker

    MrsParker Bobtail Member

    3
    0
    Jan 25, 2011
    Candor, NY
    0
    They are open
     
    MrsParker, Jan 25, 2011
    MrsParker, Jan 25, 2011
    #3
  5. Jan 25, 2011 #4
    123456

    123456 Road Train Member

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    are the hoses getting any warmth ?
     
    123456, Jan 25, 2011
    123456, Jan 25, 2011
    #4
  7. Jan 25, 2011 #5
    MrsParker

    MrsParker Bobtail Member

    3
    0
    Jan 25, 2011
    Candor, NY
    0
    No, they are not
     
    MrsParker, Jan 25, 2011
    MrsParker, Jan 25, 2011
    #5
  8. Jan 25, 2011 #6
    bulldozerbert

    bulldozerbert Medium Load Member

    622
    240
    Oct 5, 2008
    Ontario
    0
    on our one INT there was the regulating valve went bad. It controlled the amount of hot ant-freeze that went to the heater core...
     
    bulldozerbert, Jan 25, 2011
    bulldozerbert, Jan 25, 2011
    #6
  9. Jan 25, 2011 #7
    bulldozerbert

    bulldozerbert Medium Load Member

    622
    240
    Oct 5, 2008
    Ontario
    0
    did you follow the hoses right out of the block? and they are not hot?
     
    bulldozerbert, Jan 25, 2011
    bulldozerbert, Jan 25, 2011
    #7
  10. Jan 25, 2011 #8
    CondoCruiser

    CondoCruiser The Legend

    19,726
    18,734
    Apr 18, 2010
    Tennessee
    0
    If the heater hoses are cold and the valve(s) are open, then most likely the heater core is clogged. Close the valve and pull the opposite heater hose off. Then open the valve slowly and see how it comes out the core. If it's slow, repeat the process taking the other hose off. Then you'll know for sure.
     
    CondoCruiser, Jan 25, 2011
    CondoCruiser, Jan 25, 2011
    #8
    MrsParker Thanks this.
  11. Jan 25, 2011 #9
    UsaTraveler22

    UsaTraveler22 Bobtail Member

    21
    4
    Feb 10, 2010
    Central Florida
    0
    I had an issue with mine getting air-locked after I put on a new water pump I believe.

    After I got it back from Cat I noticed the valve coming off of the water pump was closed 1/16th of a turn, so I opened it back up. The next morning when I started the truck it had no heat and the hoses were cold. I opened and closed them with it running a few times and you can feel the pressure in the hose. After that I just left it 1/16th closed and I have been warm and toasty.
     
    UsaTraveler22, Jan 25, 2011
    UsaTraveler22, Jan 25, 2011
    #9
    123456 Thanks this.
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