Help! Orgasm at 35mph.

[Brandon12V]

Does it go away as you accelerate past 45ish? Check your driveshaft.

x2

how violent is the shaking?

does it feel central or rearward?
does the front end try to sway left or right when turning?
what has and has not been replaced(to your knowledge) since you purchased it?
have the wheel bearings ever been replaced?
There are MANY different possibilities of the shaking and the best way to find out is to crawl under there and check all bushings, driveshaft, wheel bearings, and the rear half shafts. Not very specific answer but you're not really giving us much information to go off of...

[DREWHALL]

Does it go away as you accelerate past 45ish? Check your driveshaft.

[Wh33lhop]

Mods will move it when they come upon it. For future reference, this section is for documenting builds, not asking questions.

It sounds like you need some bushings replaced and possibly an alignment. Wheels/tires are not necessarily ruled out if the steering wheel doesn't shake, if you've got a badly balanced tire in the rear you won't notice steering wheel wobble. How new are your struts/shocks and mounts? Basically there is play in your suspension somewhere, you need to figure out where that is and eliminate it.

[bernzpeed]

The whole car vibrates. I don't know which section to put this inquiry. I replaced the wheels and tires. But I know it's not from that since the steering wheel doesn't shake.

PS. How can this inquiry be moved?

[Wh33lhop]

Control arm bushings, possibly strut mounts, tire horribly out of balance... what have you replaced and what is old? Does the steering wheel shake or just the car?

Also this should be moved to the appropriate section.

[bernzpeed]

So now I got your attention. Please help me solve my problem

My 325is starts to vibrate at 35mph. What could cause that?