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PLEASE HELP!

Discussion in 'Volvo Forum' started by rhitrucking, Mar 28, 2019.

Page 3 of 14
  1. Mar 29, 2019 #21
    rhitrucking

    rhitrucking Light Load Member

    163
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    Feb 7, 2017
    0
    I have nothing to go by with the numbers from the cleaning. If anyone has there before and after vacuum and soot numbers, I would be interested to compare
     
    rhitrucking, Mar 29, 2019
    rhitrucking, Mar 29, 2019
    #21
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  3. Mar 30, 2019 #22
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    02D78CAA-A65C-45E4-8E47-74156D9E0CBE.jpeg
     
    Newto Trucking, Mar 30, 2019
    Newto Trucking, Mar 30, 2019
    #22
  4. Mar 30, 2019 #23
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    After forced regeneration does the soot level drops to zero?? If they used FSX cleaning machine big yellow thing I can find you baseline numbers.
     
    Newto Trucking, Mar 30, 2019
    Newto Trucking, Mar 30, 2019
    #23
  5. Mar 30, 2019 #24
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    Reading your first post, you measured with manual gauge back pressure at 1.3 psi and filter being 80% clogged = your filter is good. Did you measure before the doc or where you tap in with a gauge???
     
    Newto Trucking, Mar 30, 2019
    Newto Trucking, Mar 30, 2019
    #24
  7. Mar 30, 2019 #25
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    You might have dpf outlet temperature sensor that reads incorrectly, Amram had a good point. First post you said you checked dpf differential pressure sensor in which way, what test???
     
    Newto Trucking, Mar 30, 2019
    Newto Trucking, Mar 30, 2019
    #25
  8. Mar 30, 2019 #26
    rhitrucking

    rhitrucking Light Load Member

    163
    72
    Feb 7, 2017
    0
    We verified the diff pressure sensor reading by running a backpressure test.
     
    rhitrucking, Mar 30, 2019
    rhitrucking, Mar 30, 2019
    #26
  9. Mar 30, 2019 #27
    rhitrucking

    rhitrucking Light Load Member

    163
    72
    Feb 7, 2017
    0
    I would have to contact the cleaning company to to See what machine they used, I do not know off hand.
     
    rhitrucking, Mar 30, 2019
    rhitrucking, Mar 30, 2019
    #27
  10. Mar 30, 2019 #28
    rhitrucking

    rhitrucking Light Load Member

    163
    72
    Feb 7, 2017
    0
    The soot level goes to 10% after a forced regen
     
    rhitrucking, Mar 30, 2019
    rhitrucking, Mar 30, 2019
    #28
  11. Mar 30, 2019 #29
    rhitrucking

    rhitrucking Light Load Member

    163
    72
    Feb 7, 2017
    0
    As far as temp sensor, you got me thinnking a bit. I went back to check my sheets, but the only sheet I have regarding temps was when we were verifiyng egr stuff. These numbers are with the truck off, had been off for a bit by now:
    Oil Temp:64
    Coolant Temp:63
    Air Temp:55.3
    EGR Temp:51.3
    Engine exhaust gas temp:108.3
    DPF intake temp:131
    DPF outlet temp:72
     
    rhitrucking, Mar 30, 2019
    rhitrucking, Mar 30, 2019
    #29
  12. Mar 30, 2019 #30
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    There lies your answer. Do a DPF tune up = all 3 temperature sensors and a differential pressure sensor.
     
    Newto Trucking, Mar 30, 2019
    Newto Trucking, Mar 30, 2019
    #30
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