Vibration thru accelerator pedal.. what can cause this??

[bmw325ise]

Hi guys, i am still getting an annoying vibration thorugh the accelerator at about 1000-2000 rpm, changed the exhaust completely, includign the cat. What else can it be.... also changed the guibo.... let me have your ideas guys...

Thanks
ANdy

[Delmarco]

I know what this is....
I can't remember exactly...but I think BMW brake pedals pulse/vibrate when you need new brakes or your brakes are wet.

the acceletration pedal may pulse when the throttle is blocked...clogged.

[nobrakese36]

what kind of noise is it, where do you think it is coming from maybee, exhaust heat shield

[bmw325ise]

The noise is comming from the middle of the car, i think! you can feel a high frequency vibration through the gas pedal when you hit certain rev ranges, although the vibration is always there, sometime worse than others!! really difficult to explain. I have had the guibo changed and the muffler...

ANy ideas?? how do i check the heat sheild?

[tomctx]

Motor or transmission mounts?

[nobrakese36]

by going under and checking it out, feeling for loose parts, the shields surround the muffler