Weird Gas Pedal Vibration

[98mitsubishigst]

I just started noticing my car has a weird gas pedal vibration. i have no idea why it has one though..

I have 17' XXR 527's wrapped in 245/45s.. It is almost like the vibration is like i can feel the road perfectly, any bump i can feel in the pedal if that makes any sense.. And it doesn't vibrate any other pedal..

I swapped out to my 16' Stock GST wheels with some bald tires and probably not balanced, and these wheels make alot of noise but there is no gas pedal vibration..

What could it be? I almost feel stupid for even having to make a post about this but i have no idea what it is?

 

[FIBA M - EC17PSE]

You dont happen to have solid engine mounts do you? I got a slight vibration at about 70-80 mph and its only since the solid mount install. If not then i can think of the rims need to be re balanced

 

[performance]

You dont happen to have solid engine mounts do you? I got a slight vibration at about 70-80 mph and its only since the solid mount install. If not then i can think of the rims need to be re balanced

Yep

 

[98mitsubishigst]

I have regular motor mounts, just replaced my front one which was worn today and still no help..

Also took my wheels off and took them to my work and got them rebalanced.. Still nothing..

Any other ideas?

 

[isantop]

Do you still have cruise control? That's the only other thing I can think of that might make only the gas pedal vibrate.