View Full Version : Knocking noise when in Drive
12-11-2004, 07:28 PM
i have had this noise since the end of summer. when my car is in drive and i stop, like at a light, i hear a knocking noise, but as soon as i put it in Nuetral or Reverse, it stops. any clue on whats going on with the tranny?? i have the V6 SE.
12-12-2004, 08:56 AM
Sounds like it may be an exhaust rattle.
The drivetrain "flexes" when put into gear (in your case "drive" is the culprit) and a worn engine or exhaust mount (hanger) may cause the exhaust system to touch a metal chassis component and give you the effect you are hearing.
12-14-2004, 12:14 AM
might be the GM Knock does it seem faster as you accelerate?
A wore mount would be more of a rattle then a knock since the metal is always moving...
Do you feel it in the floorboards newhere?
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