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Discussion in 'Trucks [ Eighteen Wheelers ]' started by Superhauler, Jul 27, 2016.

  1. philv

    philv Light Load Member

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    How's the air flow out of the vents? Strong or weak?
     
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  3. Skate-Board

    Skate-Board Road Train Member

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    Wow! Is your compressor running all the time?
     
  4. Superhauler

    Superhauler TEACHER OF MEN

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    Not on a 99 kenworth. The heater core and evap sit beside each other. The temp control shuts off the water when you slide it to cool. When the blower motor runs it pushes air flow through the evap then it goes through the heater core to the vents.
     
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  5. Superhauler

    Superhauler TEACHER OF MEN

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    Yep.
     
  6. Superhauler

    Superhauler TEACHER OF MEN

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    Strong when it isn't freezing up but restricted when it freezes.
     
  7. Skate-Board

    Skate-Board Road Train Member

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    That's weird. That's the job of the trinary or high pressure switch to turn it off.
     
  8. Skate-Board

    Skate-Board Road Train Member

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    Well, you won't have to worry for long. At that high pressure your seals will go and the gas will leak out and problem solved.
     
  9. Superhauler

    Superhauler TEACHER OF MEN

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    Yep also the t-stats switch that goes in the evap.
     
  10. Skate-Board

    Skate-Board Road Train Member

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    You need to concentrate on the high pressure switch and make sure it works from start to finish.
     
  11. philv

    philv Light Load Member

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    Aug 15, 2008
    Surprise, AZ
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    That's odd. If you give me till tomorrow, I'll ask my instructor to see what he thinks.
     
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