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Can someone tell me this part name

Discussion in 'Freightliner Forum' started by 4noReason, Apr 5, 2017.

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  1. Apr 5, 2017 #1
    4noReason

    4noReason Road Train Member

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    Does this have coolant going through it. Im losing coolant. And i seen this was wetm it is raining btw. But i see no signs of head failing. No overheating. No milky oil. No white smoke. Nothing. Idk
     
    4noReason, Apr 5, 2017
    4noReason, Apr 5, 2017
    #1
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  3. Apr 5, 2017 #2
    4noReason

    4noReason Road Train Member

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    20170405_171220.jpg
     
    4noReason, Apr 5, 2017
    4noReason, Apr 5, 2017
    #2
  4. Apr 5, 2017 #3
    4noReason

    4noReason Road Train Member

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    I addded 3 gallons. Dealer said i had a def header valve leak. But looking on top of def tank i see dry. Idk anymore im lost
     
    4noReason, Apr 5, 2017
    4noReason, Apr 5, 2017
    #3
  5. Apr 5, 2017 #4
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    That is your brake foot valve. Air in and out only. Nothing to do with coolant. Header leak could have been inside the DEF tank.
     
    QUALITYTRUCK, Apr 5, 2017
    QUALITYTRUCK, Apr 5, 2017
    #4
    RocketyMan, BUMBACLADWAR, 4noReason and 1 other person Thank this.
  7. Apr 5, 2017 #5
    Chasingthesky

    Chasingthesky Heavy Load Member

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    Those are all air lines so it better not have coolant going through it
     
    Chasingthesky, Apr 5, 2017
    Chasingthesky, Apr 5, 2017
    #5
    BUMBACLADWAR and 4noReason Thank this.
  8. Apr 5, 2017 #6
    pigeon river trucking

    pigeon river trucking Light Load Member

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    That's probly it right there.
     
    pigeon river trucking, Apr 5, 2017
    pigeon river trucking, Apr 5, 2017
    #6
    4noReason Thanks this.
  9. Apr 5, 2017 #7
    Ridgeline

    Ridgeline Road Train Member

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    its called a treadle valve.
     
    Ridgeline, Apr 5, 2017
    Ridgeline, Apr 5, 2017
    #7
    chalupa, Ezrider_48501, Rollover the Original and 1 other person Thank this.
  10. Apr 5, 2017 #8
    4noReason

    4noReason Road Train Member

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    Thanks all
     
    4noReason, Apr 5, 2017
    4noReason, Apr 5, 2017
    #8
  11. Apr 5, 2017 #9
    Hulld

    Hulld Road Train Member

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    That treadle valve doesn't have a coolant tank above it that could be leaking on it does it?
    My Freighliner has one right above it.
     
    Hulld, Apr 5, 2017
    Hulld, Apr 5, 2017
    #9
  12. Apr 5, 2017 #10
    homeskillet

    homeskillet Road Train Member

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    Some buses/trucks have a coolant line from the boost pump to the cab heater core running over the top of the steering box. Might wanna check up there.
     
    homeskillet, Apr 5, 2017
    homeskillet, Apr 5, 2017
    #10
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