C15 twin turbo squeaking noise on 2005 Pete 379

Discussion in 'Ask An Owner Operator' started by Moephilly1, Jan 2, 2019.

  1. Moephilly1

    Moephilly1 Light Load Member

    100
    32
    Oct 6, 2016
    0
    Hey guys I have a 2005 Pete 379 with a accert twin turbo. I recently started hearing a squeezing or some type of weird noise when my boost is in the upper 20’s this only happens when I put pressure on the truck or when I’m shifting on a uphill. Any thoughts ? Thank you
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Razorwyr

    Razorwyr Road Train Member

    2,284
    2,816
    Jul 27, 2010
    Meridian, Mississippi
    0
    Does it get louder as you the boost/rpms go up? Could be a small air leak, check to make sure the exhaust is all tight.
     
  4. Moephilly1

    Moephilly1 Light Load Member

    100
    32
    Oct 6, 2016
    0
    Yes it does get louder
     
  5. Dynames

    Dynames Medium Load Member

    374
    298
    Apr 13, 2016
    Here, There and Yonder
    0
    Check the bellows pipes and all the boost boots. If those all check out, look at the CAC.
     
    Moephilly1 Thanks this.
  6. How many miles on motor? Have your turbos been replaced?
     
  7. Roadking96

    Roadking96 Light Load Member

    112
    43
    Jan 7, 2016
    0
    first check the CAC for any leaks.i had the same issue on Detroit. it turned out to be blown gasket at one of the exhaust manifolds.check the for leaks on the exhaust manifold as well(LOOK FOR BLACK SOOT)
     
    Moephilly1 Thanks this.
  8. Moephilly1

    Moephilly1 Light Load Member

    100
    32
    Oct 6, 2016
    0
    The truck has a little over 1mil and no it doesn’t not that I know of
     
  9. Moephilly1

    Moephilly1 Light Load Member

    100
    32
    Oct 6, 2016
    0
    Thnks your right I found black spot around the manifold I’m going to get that done hopefully that will fix the issue
     
  10. DMAX66

    DMAX66 Light Load Member

    170
    146
    Nov 11, 2010
    Chicagoland
    0
    I’m having a similar issue with my CAT. Did this end up fixing it?
     
  11. RedForeman

    RedForeman Momentum Conservationist

    4,355
    19,860
    Jan 30, 2011
    Johns Creek, GA.
    0
    The squeaking is probably the gasket between the inner turbo and manifold. Probably a broken stud, or at least a nut or two backed off. Don't wait too long to fix it. It will be completely blown out in a few more days. Tightening it won't help, it's already cracked or a piece blown out if you're hearing it.

    That engine (guessing MXS) will also tend to blow out the exhaust gasket on cyl #6 every now and then, that's usually a broken stud. Obviously check them all and replace any that are broken or sketchy looking. Since you already found the exhaust leak on the manifold to head surface, the turbos have to come off anyway to get at it. So the first problem I noted should get fixed as part of the job. Check/replace those studs as needed.

    While you're in there, look around to see if that hot exhaust leak melted anything near it. Wiring conduit, evaporator drain, hoses, etc.

    When you get it all back together, you'll have to go over those flange nuts and flex coupler clamps about a half a dozen times before they stay tight. Plan an extra 5 minutes in your pre-trip and do it while the engine is cold. Obviously don't over tighten, but you'll notice about the 3rd or 4th time you do it they are more tight than the first time. The flange nuts are a booger to get at with tools, so a cold engine is your friend for those.
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  • Draft saved Draft deleted