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
⌃

Cummins ISX Explosion near Turbo

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by cmcinc, Jun 28, 2018.

Page 1 of 4
  1. Jun 28, 2018 #1
    cmcinc

    cmcinc Bobtail Member

    22
    6
    May 22, 2018
    0
    Hello guys,

    Looking for some help, i heard a loud explosion somewhere around the Turbocharger area while driving, right after the explosion i can hear like a leak of air somewhere around the turbo and lost power from the engine.

    I have the check engine light that came on right after i heard the explosion, i got this codes from Keeptrukin:

    SPN-102
    FMI 18
    Engine intake manifold #1 pressure

    SPN-1209
    FMI 16
    Engine exhaust pressure 1

    SPN-1569
    FMI 31
    Engine protection derate

    SPN-641
    FMI 7
    Engine variable geometry turbocharger actuator #1

    SPN-3058
    FMI 16
    Engine exhaust gas recirculation system monitor

    SPN-1209
    FMI 2
    Engine exhaust pressure 1

    Any comments will help, thanks!
     
    cmcinc, Jun 28, 2018
    cmcinc, Jun 28, 2018
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Jun 28, 2018 #2
    Oldironfan

    Oldironfan Road Train Member

    5,777
    5,538
    May 22, 2017
    0
    I can only make a guess. But I'm guessing your turbo is locked, or carboned up, or something like a bad exhaust part?
     
    Oldironfan, Jun 28, 2018
    Oldironfan, Jun 28, 2018
    #2
  4. Jun 28, 2018 #3
    jodyj54

    jodyj54 Light Load Member

    98
    120
    Mar 15, 2018
    0
    Our old cabover Freightliners used to do that. It was caused by the clamp holding the rubber elbow that connects to the turbo inlet let go, or the rubber elbow got partly sucked in toward the turbo. Easy repair with a screwdriver-truck engine OFF. From what you describe, it is exactly what we used to hear with a loss of power. I would check the seal around the turbo inlet -what ever kind of clamp or pipe that goes into it. If the engines runs and you don't hear a clatter, thats probably what it is. Otherwise it will smoke immediately and make clattering noises if the turbo goes, or it may make no noise but will smoke out the exhaust heavliy. However, if there is no intake leak, better call your shop and advise.
     
    Last edited: Jun 28, 2018
    jodyj54, Jun 28, 2018
    jodyj54, Jun 28, 2018
    #3
    Samuelh and Dave_in_AZ Thank this.
  5. Jun 28, 2018 #4
    Cam Roberts

    Cam Roberts Road Train Member

    1,621
    1,937
    May 13, 2018
    0
    Sounds like one of your rubber boots blew out Take a closer look at them. Simple fix 7585A3F6-C2C5-424B-AC05-C0E3402C9590.jpeg
     
    Cam Roberts, Jun 28, 2018
    Cam Roberts, Jun 28, 2018
    #4
    Samuelh, magoo68, Hulld and 4 others Thank this.
  7. Jun 28, 2018 #5
    Goodysnap

    Goodysnap Road Train Member

    3,502
    8,384
    Jul 12, 2017
    0
    Definitely sounds as though you ruptured a hump hose on the compressor outlet to the charge air cooler. If one is bad, be proactive and just change them all. Clamps too. I have also seen the air compressor inlet hoses rupture, but that is on the other side from where you heard the noise.
     
    Goodysnap, Jun 28, 2018
    Goodysnap, Jun 28, 2018
    #5
    baha and Dave_in_AZ Thank this.
  8. Jun 28, 2018 #6
    RustyBolt

    RustyBolt Road Train Member

    2,015
    3,166
    Feb 21, 2015
    Bement, IL
    0
    Agree with the fellas above. Had my cat apart replacing a coolant line. Must not have got one of the clamps tight enough when I put it back together. It waited til the engine was under load to let loose. Thought for sure my ex was trying to kill me with a car bomb. Dang that was a loud boom.
     
    RustyBolt, Jun 28, 2018
    RustyBolt, Jun 28, 2018
    #6
  9. Jun 28, 2018 #7
    W900AOwner

    W900AOwner Heavy Load Member

    714
    1,282
    Jul 2, 2014
    0
    Definitely sounds like a charge air boot ruptured...they sound like a bomb went off, then you lose power, boost, starts smoking and the pyrometer climbs like mad at that point. Really easy and cheap fix...
     
    W900AOwner, Jun 28, 2018
    W900AOwner, Jun 28, 2018
    #7
  10. Jun 28, 2018 #8
    cmcinc

    cmcinc Bobtail Member

    22
    6
    May 22, 2018
    0
    Thanks for your comments guys, i will check this today and get back to you.
     
    cmcinc, Jun 28, 2018
    cmcinc, Jun 28, 2018
    #8
  11. Jul 3, 2018 #9
    cmcinc

    cmcinc Bobtail Member

    22
    6
    May 22, 2018
    0
    Hello Guys,

    So this is an update. The turbo was locked, fortunately it was still under warranty, this was replaced about 6 months ago.

    They repair it and got it installed again, but the turbo has a loud noise that sounds like if it had an air leak when it is in idle, if you acelerate a little the noise stops but eventually it starts again.

    Took it back to the turbo guys and They opened the turbo and according to them it looked fine, brought it back to my mechanic and install it again and it has the same issue.

    We removed the hose that goes from the turbo to the intercooler, started the truck and the air coming from the turbo it’s really slow, i have another truck with the same engine and turbo and tested the same thing and the air coming out it’s super high compared to the other turbo.

    Any thoughts on it?

    Thank you!
     
    cmcinc, Jul 3, 2018
    cmcinc, Jul 3, 2018
    #9
  12. Jul 3, 2018 #10
    Dave_in_AZ

    Dave_in_AZ Road Train Member

    49,820
    315,708
    May 4, 2015
    0
    It's a VGT right? Turbo actuator? Doesn't the ecm have to recalibrate when you remove the turbo?
     
    Dave_in_AZ, Jul 3, 2018
    Dave_in_AZ, Jul 3, 2018
    #10
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

    • Page 1 of 4