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ISX egr systems

Discussion in 'Trucks [ Eighteen Wheelers ]' started by ggswede, Aug 6, 2012.

  1. Aug 6, 2012 #1
    ggswede

    ggswede Bobtail Member

    20
    1
    Jul 23, 2010
    Yucaipa,Ca.
    0
    Anybody had any problems with the egr valve after egr cooler replacement ? Had my cooler replaced under warranty,ran good for a week,now runs rough again.Just wondering if the mechanics at Kenworth,are telling me fairy tales ?:biggrin_2554:
     
    ggswede, Aug 6, 2012
    ggswede, Aug 6, 2012
    #1
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  3. Aug 6, 2012 #2
    DrtyDiesel

    DrtyDiesel Road Train Member

    5,348
    2,598
    Feb 14, 2010
    Jacksonville, FL
    0
    I would delete it if possible. No worries then. I know my Detroit ran like crap even after they replaced the whole egr system. I say chunk it if you can.

    Ethan
     
    DrtyDiesel, Aug 6, 2012
    DrtyDiesel, Aug 6, 2012
    #2
  4. Aug 6, 2012 #3
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    What does a cooler have to do with it running rough?
     
    Heavyd, Aug 6, 2012
    Heavyd, Aug 6, 2012
    #3
  5. Aug 7, 2012 #4
    Hardlyevr

    Hardlyevr Road Train Member

    3,270
    2,540
    Jul 30, 2009
    Mapleton Depot,PA
    0
    The EGR valves on the ISX made prior to the '07 model engine can fail at any time, so replacing the cooler may have nothing to do with it. But you might want to check that they got the wiring back on it, or that it has not rubbed and shorted out.
     
    Hardlyevr, Aug 7, 2012
    Hardlyevr, Aug 7, 2012
    #4
  7. Jul 21, 2016 #5
    Surefire wireline

    Surefire wireline Bobtail Member

    2
    0
    Jul 21, 2016
    0
    We are going through egr valves like crazy. Our 2015 peterbuilts sit and run for weeks with the pto on. Any help?
     
    Surefire wireline, Jul 21, 2016
    Surefire wireline, Jul 21, 2016
    #5
  8. Jul 21, 2016 #6
    Heavyd

    Heavyd Road Train Member

    7,826
    6,276
    Feb 4, 2009
    0
    I would suspect excess heat in the engine bay is taking them out since it isn't getting any air flow that it normally would while on the highway. Try to leave the hoods open as much as possible if you are running extended PTO hours.
     
    Heavyd, Jul 21, 2016
    Heavyd, Jul 21, 2016
    #6
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