DEF PROBLEM

Discussion in 'Freightliner Forum' started by 294dave, Jul 18, 2020.

  1. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,609
    1,484
    Jun 14, 2009
    romulus,mi
    0
    Hill start assist not active. There should be a toggle switch on dash to turn HSA on/off.
     
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  3. Ross_Tech

    Ross_Tech Light Load Member

    92
    76
    Aug 31, 2021
    Michigan
    0
    You could have an upstream issue like injectors, that could cause excess soot, in turn plugging egr cooler, and loading DOC/DPF which would cause frequent regens and NOx efficiency codes.
     
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