High pitched squeal/whistle under high boost

Discussion in 'International Forum' started by 2013Maxx, Apr 21, 2021.

  1. 2013Maxx

    2013Maxx Light Load Member

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    Jan 17, 2018
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    Hello, I’m getting a high pitched squeal/whistle from the turbo area under high boost/load.. Truck has 531k on the odometer. Anyone know what it can be? 2013 ProStar Maxxforce 13
     
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  3. Judge

    Judge Road Train Member

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    Could be something as small as a pinhole in the air to air.
    Loose clamp.
    Something of that sort.
     
    beastr123 Thanks this.
  4. 2013Maxx

    2013Maxx Light Load Member

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    Jan 17, 2018
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    I sure hope so.. Do you know what the OEM target boost is?
     
  5. Judge

    Judge Road Train Member

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    Never run a MaxxForce, just experience from whistling noise under boost
     
    2013Maxx and Bean Jr. Thank this.
  6. ChuckMartel

    ChuckMartel Light Load Member

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    Jan 22, 2021
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    Should be around 43psi. Check for exhaust leaks, any signs of soot, can cause a whistle. Rear manifold is a suspect spot. Best bet is to use a smoke machine, every dealer should have one.
     
    2013Maxx Thanks this.
  7. bonder45

    bonder45 Heavy Load Member

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    I get that on my Maxxforce all the time.

    Have yet to figure out what it is.
     
  8. 2013Maxx

    2013Maxx Light Load Member

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    Jan 17, 2018
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    The tube from the turbo to the intercooler was loose. It’s held on by two metal rings thats lost its clamping force. I put two cheap hose clamps on it for now and it’s gotten much better. I’m gonna put some T clamps on it for a good air tight seal soon as I get some off time.
     
    Judge Thanks this.
  9. bonder45

    bonder45 Heavy Load Member

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    I just want to say, I've had my MaxxForce for 3 years now and she's been a good truck.....

    IIIFFFFFFF you do regular services and don't idle it.
     
    2013Maxx Thanks this.
  10. ChuckMartel

    ChuckMartel Light Load Member

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    Jan 22, 2021
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    definitely get the spring loaded CAC clamps.
     
    2013Maxx Thanks this.
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