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Turbo sounds

BANDAID

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Our 2008 F-450 Superduty's turbo at times sounds like it is going to spin out of control. Actually it is more like a jet airliner using engine thrusters to slow down at the end of the runway. It happens when running 70-80 mph. All instruments are in normal range and there is a brief loss of power. It will also do it when climbing a hill and reaching the top and letting off of the accelerator.

Is this normal or a signal there is trouble down the road?
 
blacksnapon

blacksnapon

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waynesville,mo.
BANDAID said:
Our 2008 F-450 Superduty's turbo at times sounds like it is going to spin out of control. Actually it is more like a jet airliner using engine thrusters to slow down at the end of the runway. It happens when running 70-80 mph. All instruments are in normal range and there is a brief loss of power. It will also do it when climbing a hill and reaching the top and letting off of the accelerator.

Is this normal or a signal there is trouble down the road?
Click to expand...
Sounds like a couple of different issues here. Possible engine fan kicking in (massive roaring noise) and possible venting of the turbo (noise when letting off the accellerator).
 

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