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loud whistling noise on turbo

Discussion in 'Trucks [ Eighteen Wheelers ]' started by rasymacmac21, Dec 8, 2011.

  1. Dec 8, 2011 #1
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    I have a detroit 14L 515HP, turbo is having this loud whistling noise and turbo PSI is higher than normal when I step on it.. I loose little power, no signs of smoke but check engine comes on. I had this problem before but after a big hiccup, it was back to normal, now it seems to be permanent. Changed the egr valve/turbo almost 2 years ago. Might the turbo actuator be left open, and get stuck? or EGR valve stuck open as well? Any input will help, Thanks.
     
    rasymacmac21, Dec 8, 2011
    rasymacmac21, Dec 8, 2011
    #1
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  3. Dec 8, 2011 #2
    mike91118

    mike91118 Medium Load Member

    373
    32
    Feb 9, 2010
    clarksville,tennessee
    0
    is it a dd15
     
    mike91118, Dec 8, 2011
    mike91118, Dec 8, 2011
    #2
  4. Dec 8, 2011 #3
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    series 60- 14 liter
     
    rasymacmac21, Dec 8, 2011
    rasymacmac21, Dec 8, 2011
    #3
  5. Dec 9, 2011 #4
    Sparkz

    Sparkz Light Load Member

    76
    16
    Jul 10, 2011
    New Zealand
    0
    What flash code are you getting?
     
    Sparkz, Dec 9, 2011
    Sparkz, Dec 9, 2011
    #4
  7. Dec 9, 2011 #5
    rasymacmac21

    rasymacmac21 Light Load Member

    291
    155
    Sep 25, 2009
    East of the Mississippi.
    0
    I have codes, 46.77.72.63.44.34.21.49.39.51.31. Too many codes, might be an electrical problem?
     
    rasymacmac21, Dec 9, 2011
    rasymacmac21, Dec 9, 2011
    #5
  8. Dec 9, 2011 #6
    JohnP3

    JohnP3 Road Train Member

    1,594
    682
    Feb 21, 2010
    Rock Creek B.C. Canada
    0
    Any time you get over three codes and your maintenance levels are good, then the first thing you do is clean, and protect, every battery connection and ground cable. Remove and clean the grounds at the starter, the ones to the block, and from the frame to the cab. Check and clean the power, and ground fused wires to the ECM.
    I like to add a cable to the right front corner of the engine to the frame.
    Then do voltage drop tests to confirm cables are not damaged.
    Then clear the codes, and see what you have!
    Just a thought!
     
    JohnP3, Dec 9, 2011
    JohnP3, Dec 9, 2011
    #6
    mrbmg Thanks this.
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