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ISX Turbo Question

Discussion in 'Trucks [ Eighteen Wheelers ]' started by hawkjr, Jun 1, 2012.

  1. Jun 1, 2012 #1
    hawkjr

    hawkjr Road Train Member

    1,652
    638
    Feb 28, 2010
    Virginia
    0
    I got a 2012 KW T660 with an 2010 ISX Cummins... i recently had my ECM updated and noticed after the update that when the Turbo kicks in around 30 PSI i hear alot of Air/Flutter. Is this something normal? An Mechanic at the Kenworth dealer told me that it has something to do with the Variable Geometry Turbo?? The thing is i don't recall hearing this until after the ECM update
     
    hawkjr, Jun 1, 2012
    hawkjr, Jun 1, 2012
    #1
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  3. Jun 8, 2012 #2
    spiderx4

    spiderx4 Bobtail Member

    19
    2
    Jun 8, 2012
    Santa Rosa, CA
    0
    I have the same problem, happens when pulling a heavy load and building 20+ psi. Ill let go of the pedal and itll stop, also no check engine light comes on. Not sure what is is, its been to the dealer twice and they havent said anything about doing a ecm recal.
     
    spiderx4, Jun 8, 2012
    spiderx4, Jun 8, 2012
    #2
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