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High pitch noise in driver side dash

Discussion in 'Freightliner Forum' started by gudethangs, Dec 14, 2014.

  1. Dec 14, 2014 #1
    gudethangs

    gudethangs Bobtail Member

    23
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    Dec 14, 2014
    0
    Hi guys
    I'm new here. Just wondering if anyone heard this noise. I have an 2005 c. class. It's making this big pitch noise in the dash when I accelerate hard--usually up a hill. I can still reach top speed on regular roads but when I rabbit the accelerator just slightly it makes this high pitch deafening noise. Once I ease off the accelerator & find the spot the noise is gone. Only when rabbit punch it. Any insights guys?? Thanks...
     
    gudethangs, Dec 14, 2014
    gudethangs, Dec 14, 2014
    #1
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  3. Dec 14, 2014 #2
    201

    201 Road Train Member

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    high plains colorado
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    Turbo going south? Since it's related to the accelerator, I'm thinking turbo. Better check that soon, if it scatters, big time repair.
     
    201, Dec 14, 2014
    201, Dec 14, 2014
    #2
  4. Dec 14, 2014 #3
    gudethangs

    gudethangs Bobtail Member

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    3
    Dec 14, 2014
    0
    The sound is loud and clear coming from the driver side dash. As I recall is in the turbo on the passenger side?? Do you know what would be making that sound?? Thanks again.
     
    gudethangs, Dec 14, 2014
    gudethangs, Dec 14, 2014
    #3
  5. Dec 14, 2014 #4
    201

    201 Road Train Member

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    high plains colorado
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    Well, the sound could be coming through the firewall and it sounds like it's coming from the driver's side. Is the turbo leaking oil? I'd take the rubber boot off the turbo (either from air cleaner, or the other side) you should see the fins of the turbo, see if there's any play in the turbo, try wiggling it, and spin it. If a turbo bearing is going, I've heard that high pitched whistle.
     
    201, Dec 14, 2014
    201, Dec 14, 2014
    #4
  7. Dec 14, 2014 #5
    gudethangs

    gudethangs Bobtail Member

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    Dec 14, 2014
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    Thanks for the advice. I'll check it out.
     
    gudethangs, Dec 14, 2014
    gudethangs, Dec 14, 2014
    #5
  8. Dec 14, 2014 #6
    062

    062 Road Train Member

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    Do you have a boost gauge? If it's mechanical maybe cracked line.
     
    062, Dec 14, 2014
    062, Dec 14, 2014
    #6
  9. Dec 19, 2014 #7
    gudethangs

    gudethangs Bobtail Member

    23
    3
    Dec 14, 2014
    0
    I solve the problem. I was changing my fuel filter when I notice soot coming outs of the EGR tube. Above the valve. There was a broken clamp. Replace the clamp and all is good now. Thanks for your replies.
     
    gudethangs, Dec 19, 2014
    gudethangs, Dec 19, 2014
    #7
    GrapeApe Thanks this.
  10. Dec 19, 2014 #8
    201

    201 Road Train Member

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    Apr 16, 2014
    high plains colorado
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    Great. It would be great if all repairs would be that simple.
     
    201, Dec 19, 2014
    201, Dec 19, 2014
    #8
  11. Dec 24, 2014 #9
    Bigman58

    Bigman58 Light Load Member

    60
    11
    Feb 12, 2014
    0
    A lot of them are if you catch them before they happen. That was a good example of a driver paying attention to his Truck and being pro active on it. "Good Stuff" he..he.. AKA Kevin Rutherford
    It's true though...good job driver!
    And to the drivers who put in their 2 cents.
    This forum is awesome! Lots "Good Stuff" here. :)
     
    Bigman58, Dec 24, 2014
    Bigman58, Dec 24, 2014
    #9
  12. Dec 25, 2014 #10
    GrapeApe

    GrapeApe Road Train Member

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    Thank you for letting everyone know what it was.
     
    GrapeApe, Dec 25, 2014
    GrapeApe, Dec 25, 2014
    #10
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