On my 04 crossfire,when I'm at about 15 mph to 20 mph I got a crazy shake feels like rear end,but as I let off gas and continue to go it goes away??? Can anyone give me a idea plz. Seems to be getting worse as time goes on..

 

1.center bearing on drive shaft,,
2.rear spring not seated,, ( if this just started it is not the spring)
3. bent axle.
4 wheel bent
5 tire way out of round


I would go with #1

 

Started bout a month ago..I'm a tire tech so I know its not tire or wheel..someone said maybe a camshaft sensor???? But as I read about that it usually shuts car down which never happened..once in third gear it completely goes away.

 

if you take off from dead still floor it and in the first three car lengths it knocks ,rumbles, sounds like some one is under the car with a mallet banging on the floor it is the drive shaft, middle bearing,, Needswings has them at the best price for a good one ,( you don't want one made by ????? so order it from needswings and get the genuine bearing. if you take it to a shop to be checked ,,it can not be checked with the wheels hanging,, you need a drive on lift then go to the middle of the drive shave and shake it ,,push up pull down, push sideways do everything to make the bearing move, also look it see if the rubber on the outside of the bearing is not ripped, if it is ,,you found your problem.

 

. Yup always after 15mph..sounds just like a tire loose.buy after 20-25 mph it stops..once it starts and I let of gas then press peddle again nothing..usually anyway..but getting worse

 

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