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Turbo whistle different and louder

Discussion in 'Trucks [ Eighteen Wheelers ]' started by T800H, May 23, 2011.

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  1. May 23, 2011 #1
    T800H

    T800H Medium Load Member

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    As I was leaving the DOT scales I stepped on it to get into traffic quick and the turbo started whistling a lot louder to the point it sounds like a police siren.

    I should have mentioned that it is a T800 with a 475 cat, Mr Haney's tune to 600hp BS, and dual air cleaners, it always had the usual turbo whine that will only drive you crazy if you drive with the windows down, but now even my friend can hear it on the phone.

    Symptoms? none, no more smoke, no lost of power, nothing, just different louder whistle, I've check all the turbo plumbing and everything seems the same, I took the wife for the second run and she noticed it right away and I can see people on the street and on their boats fishing turning to look when they hear it, so.

    What should I look at, I don't know if I should worry about a new turbo in the near future.

    any ideas and opinions are welcome.

    Thank you..............Eddy
     
    T800H, May 23, 2011
    T800H, May 23, 2011
    #1
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  3. May 23, 2011 #2
    lovesthedrive

    lovesthedrive R.I.P.

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    The ribbing on the inside of your intake hose will cause a whistle. Ever had one of those ufo tubes that you twirled about your head? Same thing. My guess is that when you altered your filters, you altered a muffling that they may have given you.

    I dont know of a easy fix on it as the flex hose is designed to absorb some vibration.
     
    lovesthedrive, May 23, 2011
    lovesthedrive, May 23, 2011
    #2
  4. May 23, 2011 #3
    Mr. Haney

    Mr. Haney Road Train Member

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    Eddy

    If I remember correctly you left have the stock turbo on your truck. What it sounds like happened is the thrust bearing is failing this allows the compressor wheel to cntact the compressor cover under boost. The sound should get worse as the boost goes higher. You need to take the air intake piping loose from the compressor cover and grab the shaft and see if you have any in and out play. When you pull out on the shaft it shouldn't contact the cover. You can also remove the band clamp holding the cover to the bearing housing to visually inspect the cover and wheel for contact. If its touched you need a new turbo. The shaft will have some side to side play, but again it can not touch the cover.

    Give me a call, I have some BW Stage 1 turbos on the way to me now that will work great with your tune. I hope to have them by Wednesday
     
    Mr. Haney, May 23, 2011
    Mr. Haney, May 23, 2011
    #3
    gtransport and RAG Thank this.
  5. May 24, 2011 #4
    Hardlyevr

    Hardlyevr Road Train Member

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    if your turbo doesn't check out to be bad, it may be something as simple as a bad gasket on the turbo that has developed a crack or pin hole.
     
    Hardlyevr, May 24, 2011
    Hardlyevr, May 24, 2011
    #4
  7. May 24, 2011 #5
    Jfaulk99

    Jfaulk99 Road Train Member

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    Shut the truck off before you do this, it's less messy.:biggrin_2559:
     
    Jfaulk99, May 24, 2011
    Jfaulk99, May 24, 2011
    #5
    mrbmg Thanks this.
  8. May 24, 2011 #6
    josh.c

    josh.c Road Train Member

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    I knew we kept you around for a reason.
     
    josh.c, May 24, 2011
    josh.c, May 24, 2011
    #6
  9. May 24, 2011 #7
    T800H

    T800H Medium Load Member

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    Thank you Kurt I'll be calling you tomorrow.

    THERE'S SOMETHING WRONG WITH THE fORUM I see a lot of red X and can't see any other post except mine.........


    Is it just me or is the whole forum?
     
    T800H, May 24, 2011
    T800H, May 24, 2011
    #7
  10. May 24, 2011 #8
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    I see it to,
     
    Diesel Dave, May 24, 2011
    Diesel Dave, May 24, 2011
    #8
  11. May 24, 2011 #9
    heavyhaulerss

    heavyhaulerss Road Train Member

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    Your both seeing things. :biggrin_25526:
     
    heavyhaulerss, May 24, 2011
    heavyhaulerss, May 24, 2011
    #9
  12. May 25, 2011 #10
    Gears

    Gears Trucker Forum STAFF - Gone, But Not Forgotten.

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    The forum was just going through some updates while you were online.
     
    Gears, May 25, 2011
    Gears, May 25, 2011
    #10
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