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Turbo Air control valve , Waistegate problem ISX

Discussion in 'Trucks [ Eighteen Wheelers ]' started by vadim2200, Oct 23, 2013.

  1. Oct 23, 2013 #1
    vadim2200

    vadim2200 Light Load Member

    128
    36
    Nov 21, 2010
    0
    on my 2006 isx my wastegate started to release exhaust constantly, is this because its locked up and needs to be changed? or is the problem in turbo air controll valve?
    Also, recently started to notice chirping sound sound from turbo area when going down hill on engine break, and that one exhaust manifold gasket started to leak, not sure if its related.
    Also when in idle and press gas pedal the RPM goes over 2000, and before waistgate problem was always under 1500 RMP, it seems that something is giving signal or malfunctioning
     
    Last edited: Oct 23, 2013
    vadim2200, Oct 23, 2013
    vadim2200, Oct 23, 2013
    #1
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  3. Oct 23, 2013 #2
    WildHog

    WildHog Light Load Member

    101
    22
    Oct 13, 2011
    AR
    0
    Wastegate
    Doesn't it have a Holeset Variable Aperture Turbo?

    The sliding nozzle ring alters the aperture through which the exhaust gases flow onto the turbine wheel. This alteration in the geometry of the turbocharger increases the boost as the nozzle is closed down. Reducing the aperture increases exhaust manifold pressure and increases the turbocharger speed. As the nozzle ring opens up, the exhaust pressure reduces and the turbocharger boost can decrease; or simply maintain ideal boost levels as the aperture increases to raise the turbine's exhaust swallowing capacity to compensate for increasing engine r.p.m. In effect it creates an infinite number of fixed geometry turbochargers.
     
    WildHog, Oct 23, 2013
    WildHog, Oct 23, 2013
    #2
  4. Oct 23, 2013 #3
    vadim2200

    vadim2200 Light Load Member

    128
    36
    Nov 21, 2010
    0
    no,
    also drove by cummins, and service man was kind enough to test actuator and confirmed that its bad and needs to be replaced. $427, found and ordered new online for $250. For now i have blocked turbo control air valve line that goes to actuator so it doesn't leak air.
     
    vadim2200, Oct 23, 2013
    vadim2200, Oct 23, 2013
    #3
    me myself and I Thanks this.
  5. Oct 23, 2013 #4
    WildHog

    WildHog Light Load Member

    101
    22
    Oct 13, 2011
    AR
    0
    It was leaking the compressed air that controls the actuator.
     
    WildHog, Oct 23, 2013
    WildHog, Oct 23, 2013
    #4
  7. Oct 23, 2013 #5
    Powder Joints

    Powder Joints Subjective Prognosticator

    7,856
    8,131
    Sep 25, 2007
    Rosamond, SoCal
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    A can of CAT yellow paint will fix most anything.
     
    Powder Joints, Oct 23, 2013
    Powder Joints, Oct 23, 2013
    #5
  8. Oct 23, 2013 #6
    WildHog

    WildHog Light Load Member

    101
    22
    Oct 13, 2011
    AR
    0
    Except a cat.
    Most broke down truck motor on the road.
     
    WildHog, Oct 23, 2013
    WildHog, Oct 23, 2013
    #6
  9. Oct 23, 2013 #7
    saddleup

    saddleup Light Load Member

    281
    137
    Sep 30, 2011
    magnolia, ky
    0
    look again 9 out of 10 that i see on the side of the road have red engines
     
    saddleup, Oct 23, 2013
    saddleup, Oct 23, 2013
    #7
  10. Oct 23, 2013 #8
    me myself and I

    me myself and I Heavy Load Member

    735
    312
    Oct 5, 2009
    vernon hills,Il
    0
    Replace it as soon as you can. If you don't it'll damage turbo.
     
    me myself and I, Oct 23, 2013
    me myself and I, Oct 23, 2013
    #8
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