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vibration and ticking problems

Discussion in 'Kenworth Forum' started by cumminsISB, Mar 27, 2014.

Page 1 of 2
  1. Mar 27, 2014 #1
    cumminsISB

    cumminsISB Light Load Member

    176
    10
    Feb 5, 2011
    D'Lo, Ms
    0
    truck has been getting progressively worse. So I had a cylinder cut out test done today. All cylinders checked ok and all injectors were within 2-3 points(whatever it is) of each other. Here is the problem. Truck vibrates/misses/stutters under acceleration or pull. Smooths out if I let off the go pedal. So that's why I thought injector instead of driveline. I need ideas here. Injector harness? No codes were logged either. I am stumped. It also vibrates when the jakes are engaged. And I also have a ticking only when the jakes are engages at lower rpms. Please help!
     
    cumminsISB, Mar 27, 2014
    cumminsISB, Mar 27, 2014
    #1
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  3. Mar 27, 2014 #2
    FLATBED

    FLATBED Road Train Member

    6,665
    5,499
    Sep 14, 2008
    Back behind the Wheel and out of the OFFICE
    0
    Bit of INFO would be helpful such as Model of Truck and Engine
     
    FLATBED, Mar 27, 2014
    FLATBED, Mar 27, 2014
    #2
  4. Mar 27, 2014 #3
    RSQ20

    RSQ20 Medium Load Member

    315
    92
    Jul 11, 2013
    Upper Fraser Valley, BC Canada
    0
    Have you checked you charge air, and/or EGR...

    Philip
     
    RSQ20, Mar 27, 2014
    RSQ20, Mar 27, 2014
    #3
  5. Mar 27, 2014 #4
    baha

    baha Road Train Member

    4,137
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    Jul 25, 2013
    ga
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    Run over/head and CK. back
     
    baha, Mar 27, 2014
    baha, Mar 27, 2014
    #4
  7. Mar 27, 2014 #5
    cumminsISB

    cumminsISB Light Load Member

    176
    10
    Feb 5, 2011
    D'Lo, Ms
    0
    sorry bout that. 2005 w900 with c15 cat mxs. have not checked charge air. no egr. I was thinking overhead but my fuel mileage has only fell off a couple tenths, which may not matter. I have put 340000 on it since I bought it and I have not had the overhead run.
     
    cumminsISB, Mar 27, 2014
    cumminsISB, Mar 27, 2014
    #5
  8. Mar 31, 2014 #6
    cumminsISB

    cumminsISB Light Load Member

    176
    10
    Feb 5, 2011
    D'Lo, Ms
    0
    Nobody has any suggestions?
     
    cumminsISB, Mar 31, 2014
    cumminsISB, Mar 31, 2014
    #6
  9. Mar 31, 2014 #7
    FLATBED

    FLATBED Road Train Member

    6,665
    5,499
    Sep 14, 2008
    Back behind the Wheel and out of the OFFICE
    0
    Had sort of a problem like that on a T600 with a cummins and was ok after injector harness was changed, was almost like it was flooding under acceleration
     
    FLATBED, Mar 31, 2014
    FLATBED, Mar 31, 2014
    #7
  10. Mar 31, 2014 #8
    cumminsISB

    cumminsISB Light Load Member

    176
    10
    Feb 5, 2011
    D'Lo, Ms
    0
    This one is not smoking or anything. Just seems to.run like crap loaded or pulling a hill.
     
    cumminsISB, Mar 31, 2014
    cumminsISB, Mar 31, 2014
    #8
  11. Mar 31, 2014 #9
    FLATBED

    FLATBED Road Train Member

    6,665
    5,499
    Sep 14, 2008
    Back behind the Wheel and out of the OFFICE
    0
    Mine did the same best way to describe it was that it FELT like it was flooding whenever it had to pull a bit harder
     
    FLATBED, Mar 31, 2014
    FLATBED, Mar 31, 2014
    #9
  12. Mar 31, 2014 #10
    rollin coal

    rollin coal Road Train Member

    12,506
    23,794
    Mar 29, 2008
    TN
    0
    I would have the overhead adjustment done ASAP. 340,000 miles it's way past due IMO. When was it last done by the previous owner? Some people think it's overkill but I have it done every 100k. Had it done a couple of weeks ago. Cheap insurance. They might find something broken in there.
     
    rollin coal, Mar 31, 2014
    rollin coal, Mar 31, 2014
    #10
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