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Knocking noise under acceleration

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Old Apr 30, 2022 | 08:44 PM
  #1  
PowerstrokeKoz's Avatar
PowerstrokeKoz
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Knocking noise under acceleration

So my truck developed some type of knocking. Trying to figure out where to go fish first transmission or rear end/driveshaft. It’s a 5 speed and I can only hear the knocking under acceleration. When I’m neutral or with clutch in there is no noise. Also when car is idling there is nothing. Attaching a video as well of the noise. I can hear it the most in 4th and 5th. Any thoughts would be appreciated.
 
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Old Apr 30, 2022 | 09:18 PM
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Drop inspection plate, see what flywheel there. If dual mass it may have checked out.
 
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Old May 1, 2022 | 07:12 AM
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^^^^ this first
 
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