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help knocking sound

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Old Apr 2, 2007 | 07:29 PM
  #1  
bowlburner's Avatar
bowlburner
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From: tennessee
Default help knocking sound

as soon as i let my clutch out and giive the car gas there is a knock sound and u can feel it in the floor boardalso when i let off the gas u can feel it again. but its not a constant knocking. it just doues it each time u get on or of the gas and the car flexes.
Old Apr 2, 2007 | 08:10 PM
  #2  
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dirtystang04
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Default RE: help knocking sound

Sounds like maybe a bad U joint. I would check them first and then move to the rear from there.
Old Apr 2, 2007 | 09:02 PM
  #3  
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mariotraci
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Default RE: help knocking sound

exhausthitting the floor?
Old Apr 3, 2007 | 08:59 PM
  #4  
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bowlburner
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From: tennessee
Default RE: help knocking sound

it also does it when the car decellerate
Old Apr 4, 2007 | 09:22 AM
  #5  
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Default RE: help knocking sound

Possible that the trans cross member has
rusted out or is loose. The torque on the
trans causes it to move in the mount.
Old Apr 4, 2007 | 09:24 PM
  #6  
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bowlburner
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Default RE: help knocking sound

well i just got rear ended when it started hapening
Old Apr 5, 2007 | 09:25 AM
  #7  
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Default RE: help knocking sound

You need to get some lift time.
Look at the exhaust pipes and see
where they have moved too close to the
body or drive shaft.
Old Apr 7, 2007 | 01:45 PM
  #8  
bowlburner's Avatar
bowlburner
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From: tennessee
Default RE: help knocking sound

found out waht it was my transmission mount was loose my rear sway bar and one of my control arms were also loose. but all is well now
Old Apr 7, 2007 | 11:57 PM
  #9  
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kenv
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From: pa
Default RE: help knocking sound


Could have broken a motor mount
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