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Diesel exhaust fluid

Discussion in 'Freightliner Forum' started by Cole T, Mar 10, 2018.

  1. Mar 10, 2018 #1
    Cole T

    Cole T Bobtail Member

    3
    1
    Mar 10, 2018
    0
    I have the smell of DEF blowing into the cab of my freightliner Coronado through the vent system . What could be the cause? I'm thinking a possible leak but can't find it. Help....
     
    Cole T, Mar 10, 2018
    Cole T, Mar 10, 2018
    #1
    KB3MMX Thanks this.
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  3. Mar 10, 2018 #2
    Justrucking2

    Justrucking2 Road Train Member

    3,211
    4,295
    Sep 12, 2017
    Plymouth MI
    0
    Check your SCR box for cracks. You blowing any codes? How many miles on the truck? And, have you ever serviced the SCR box and the associated tank and fittings? They need to be removed periodically to be cleaned, inspected and serviced.
     
    Justrucking2, Mar 10, 2018
    Justrucking2, Mar 10, 2018
    #2
  4. Mar 10, 2018 #3
    me myself and I

    me myself and I Heavy Load Member

    735
    312
    Oct 5, 2009
    vernon hills,Il
    0
    Def or antifreeze?
     
    me myself and I, Mar 10, 2018
    me myself and I, Mar 10, 2018
    #3
  5. Mar 11, 2018 #4
    Cole T

    Cole T Bobtail Member

    3
    1
    Mar 10, 2018
    0
    I'm thinking DEF. It has the smell of ammonia.
     
    Cole T, Mar 11, 2018
    Cole T, Mar 11, 2018
    #4
  7. Mar 11, 2018 #5
    Cole T

    Cole T Bobtail Member

    3
    1
    Mar 10, 2018
    0
    No codes showing. Tractor has about 80000 miles on it so the SCR box hasn't been serviced yet.
     
    Cole T, Mar 11, 2018
    Cole T, Mar 11, 2018
    #5
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