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DPF question

Discussion in 'International Forum' started by dom14, Nov 11, 2016.

Page 3 of 3
  1. Nov 17, 2016 #21
    dom14

    dom14 Light Load Member

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    Oct 18, 2016
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    The DOC is on top of the DPF filter correct? I just had that and the DPF baked 3 weeks ago


     
    dom14, Nov 17, 2016
    dom14, Nov 17, 2016
    #21
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  3. Nov 17, 2016 #22
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    romulus,mi
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    The DOC is before the DPF. Meaning DPF is closer to final exhaust outlet. The DPF inlet and outlet sensors (#2 and #3) sometimes are the same part#. The DOC inlet sensor (#1) would be a different part #. Like HeavyD said your #1 and #2 may have been mixed up and screwed into the wrong ports. They could not get plugged into the module wrong because the plugs are different.
     
    QUALITYTRUCK, Nov 17, 2016
    QUALITYTRUCK, Nov 17, 2016
    #22
  4. Nov 17, 2016 #23
    dom14

    dom14 Light Load Member

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    Oct 18, 2016
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    Ok I'm going to look in the morning.. the # 1 and 2 sensors that may be mixed up are they towards the top of exhaust or bottom? There's a sensor on top.. DOC ..DPF and at bottom of inlet.. also 2 hard lines running up to a module.. which sensors should I be tracking down? thanks for the help


     
    dom14, Nov 17, 2016
    dom14, Nov 17, 2016
    #23
  5. Nov 18, 2016 #24
    Heavyd

    Heavyd Road Train Member

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    The hard tubes are for the pressure sensor. The temp sensors are the ones with wires.
     
    Heavyd, Nov 18, 2016
    Heavyd, Nov 18, 2016
    #24
  7. Nov 18, 2016 #25
    dom14

    dom14 Light Load Member

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    Oct 18, 2016
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    The bottom 2 sensor wires were in the wrong ports
     
    dom14, Nov 18, 2016
    dom14, Nov 18, 2016
    #25
    Heavyd Thanks this.
  8. Nov 19, 2016 #26
    dom14

    dom14 Light Load Member

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    Oct 18, 2016
    0
    I switched the 2 sensors truck did a self regen while on the highway and DPF light went away..
     
    dom14, Nov 19, 2016
    dom14, Nov 19, 2016
    #26
    Heavyd Thanks this.
  9. Nov 19, 2016 #27
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,804
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    Jun 14, 2009
    romulus,mi
    0
    Glad it worked out. Don't forget about cleaning/replacing that doser. You have to maintain these aftertreatment systems just like anything else that requires it..........or you will be visiting me in my shop sooner than later.
     
    QUALITYTRUCK, Nov 19, 2016
    QUALITYTRUCK, Nov 19, 2016
    #27
    Heavyd Thanks this.
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