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ISX flutters at idle

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Markvfl, Apr 2, 2014.

Page 2 of 3
  1. Apr 4, 2014 #11
    Edgar2191

    Edgar2191 Light Load Member

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    Apr 9, 2013
    0
    I have the same exact problem but its only when the engine is cold it has a rough idle after it heats up its better. It was alot worse before but I changed the fuel transfer pump. It was also in test mode by the way. Can you let me know if they fix your problem.
     
    Edgar2191, Apr 4, 2014
    Edgar2191, Apr 4, 2014
    #11 + Quote Reply
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  3. Apr 4, 2014 #12
    WitchingHour

    WitchingHour Road Train Member

    3,401
    2,104
    Apr 1, 2011
    Broomfield, CO
    0
    Do you have any trouble starting it, as well? If so, have a test run for injector leaks.
     
    WitchingHour, Apr 4, 2014
    WitchingHour, Apr 4, 2014
    #12 + Quote Reply
  4. Apr 6, 2014 #13
    Markvfl

    Markvfl Road Train Member

    1,103
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    Nov 29, 2007
    Apopka, FL
    0
    I have no trouble start ing it.
     
    Markvfl, Apr 6, 2014
    Markvfl, Apr 6, 2014
    #13 + Quote Reply
  5. Apr 9, 2014 #14
    Markvfl

    Markvfl Road Train Member

    1,103
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    Nov 29, 2007
    Apopka, FL
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    Put truck in the shop last week and they finally got to workin on it this week, but that's another story... anyway... They're telling me that everything tests good and the actuator moves freely but the VGT codes indicate replacing the actuator control. Any input???
     
    Markvfl, Apr 9, 2014
    Markvfl, Apr 9, 2014
    #14 + Quote Reply
  7. Apr 11, 2014 #15
    Markvfl

    Markvfl Road Train Member

    1,103
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    Nov 29, 2007
    Apopka, FL
    0
    Now they install new actuator and say so sorry the actuator ring is sticking and is really not opening all the way - you need a new turbo. Price - about $5,000 parts and labor. I ask will this solve my problems - surging at idle and poor fuel mileage? We don't know...
     
    Markvfl, Apr 11, 2014
    Markvfl, Apr 11, 2014
    #15 + Quote Reply
  8. Apr 12, 2014 #16
    Edgar2191

    Edgar2191 Light Load Member

    178
    32
    Apr 9, 2013
    0
    What shop did you take it to? Turbo is around 2k so labor is 3k?
     
    Edgar2191, Apr 12, 2014
    Edgar2191, Apr 12, 2014
    #16 + Quote Reply
  9. Apr 12, 2014 #17
    Markvfl

    Markvfl Road Train Member

    1,103
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    Nov 29, 2007
    Apopka, FL
    0
    Kenworth. They were the only shop that said they could Get on it the next day. They finally did 7 days later. Turbo is $3100, actuator $900, labor $700 plus taxes. There is a brand new turbo with actuator on EBay for $2500 including shipping. Thinking of paying labor and pulling truck out of shop, buying EBay turbo and installing. Will save a grand but lose 2 -3 extra days. My biggest obstacle is getting willing to throw more money into this pit never to be seen again and still have the same problem when I'm finished. I feel like Wyley Coyote trying to kill the Roadrunner...
     
    Markvfl, Apr 12, 2014
    Markvfl, Apr 12, 2014
    #17 + Quote Reply
  10. Apr 12, 2014 #18
    NRG

    NRG Light Load Member

    166
    46
    May 21, 2010
    Lloydminster AB
    0
    Did you ever tried getting your truck to a good Cummins dealer? They have more knowledge in diagnostics then truck maker dealerships. You don't have any extended warranty left I take it? Btw, did you ever check your fuelling/timing actuators?
     
    NRG, Apr 12, 2014
    NRG, Apr 12, 2014
    #18 + Quote Reply
  11. Apr 12, 2014 #19
    The Admiral

    The Admiral Heavy Load Member

    894
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    Jul 18, 2010
    Akron,Ohio
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    I thought Rawze and PDQ had you all straightened out. And i'm not trying to be a smart ___ Just asking.
     
    The Admiral, Apr 12, 2014
    The Admiral, Apr 12, 2014
    #19 + Quote Reply
  12. Apr 12, 2014 #20
    Markvfl

    Markvfl Road Train Member

    1,103
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    Nov 29, 2007
    Apopka, FL
    0
    I've owned this truck for a year and it's never been right. I'm running Rawze's tune. My local Cummins dealer (Orlando) reminds me of the three stooges.
     
    Markvfl, Apr 12, 2014
    Markvfl, Apr 12, 2014
    #20 + Quote Reply
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