Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

2011 Cummins ISX, random miss while idling?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by CraigInReston, Apr 6, 2017.

  1. Apr 6, 2017 #1
    CraigInReston

    CraigInReston Light Load Member

    137
    134
    Apr 6, 2017
    0
    I recently had a new valve camshaft with the updated rockers and #6 injector replaced. Truck ran great for about 2000 miles. Slowly started to develope a slight random miss, noticed only at high idle. Now the miss is very noticeable and sounds uneven. Any suggestions would be great!
     
    CraigInReston, Apr 6, 2017
    CraigInReston, Apr 6, 2017
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Apr 6, 2017 #2
    boneebone

    boneebone Road Train Member

    2,295
    2,366
    Mar 13, 2009
    0
    It could be a flat cam lobe, common problem with ISX15 or another bad injector.
     
    boneebone, Apr 6, 2017
    boneebone, Apr 6, 2017
    #2
    CraigInReston Thanks this.
  4. Apr 7, 2017 #3
    CraigInReston

    CraigInReston Light Load Member

    137
    134
    Apr 6, 2017
    0
    Thanks boneebone. I'll do an injector leak test when I get some time. I'll let you know the results.
     
    CraigInReston, Apr 7, 2017
    CraigInReston, Apr 7, 2017
    #3
  5. Apr 7, 2017 #4
    x1Heavy

    x1Heavy Road Train Member

    34,017
    42,135
    Mar 5, 2016
    White County, Arkansas
    0
    I agree with Boneebone. A cam is late somewhere with a lobe (Or early) or probably flat.

    Desiel engines once fired run forever on own compression provided there is fuel and air.
     
    x1Heavy, Apr 7, 2017
    x1Heavy, Apr 7, 2017
    #4
    CraigInReston Thanks this.
  7. Apr 7, 2017 #5
    cjb logistics

    cjb logistics Heavy Load Member

    766
    643
    Aug 13, 2016
    Liberal Ks
    0
    15 also have a problem with gear slipping on cam shaft. Gears are just pressed on and have been known to slip, ISX issue which I have experienced.
     
    cjb logistics, Apr 7, 2017
    cjb logistics, Apr 7, 2017
    #5
    CraigInReston Thanks this.
  8. Aug 30, 2018 #6
    CraigInReston

    CraigInReston Light Load Member

    137
    134
    Apr 6, 2017
    0
    Sorry for the late update to my problem. It turned out to be another bad injector.
     
    CraigInReston, Aug 30, 2018
    CraigInReston, Aug 30, 2018
    #6
    Rounded_nut and Heavyd Thank this.
  9. Aug 30, 2018 #7
    Justrucking2

    Justrucking2 Road Train Member

    3,211
    4,293
    Sep 12, 2017
    Plymouth MI
    0
    When one goes, they normally all start to fail... Especially if they are factory originals. That age and wear thing.
     
    Justrucking2, Aug 30, 2018
    Justrucking2, Aug 30, 2018
    #7
    CraigInReston Thanks this.
  10. Aug 30, 2018 #8
    Justrucking2

    Justrucking2 Road Train Member

    3,211
    4,293
    Sep 12, 2017
    Plymouth MI
    0
    Not if you follow Quickserve manual, Loc Tite 609 needs to be applied to cam and torqued to proper specs. Most shops just throw the gears on and call it a day. There is your slippage.
     
    Justrucking2, Aug 30, 2018
    Justrucking2, Aug 30, 2018
    #8
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.