All of a sudden I am getting engine vibration in passenger cab. I feel it in the pedals, steering, etc.
It seems to be same frequency as engine RPM.
I'm thinking motor mount.
Car runs great so engine missing is unlikely.
Anyone agree and also does one particular mount fail more often than the others?

 

Jack up the car, secure it and get under there to see if anything is broken or loose. make sure that the wheels are balanced. could be many things. Oh and check wheel bearings for play

 

Does it only happening under acceleration? If so your axles are most likely the culprit. Especially if your lowered. I had the same issue, so I raised the car and the vibes were gone.

 

I think you missed that it goes with engine speed, not vehicle speed.

 

That's why I'm asking if it's when you accelerate. Or does it do it just stiing at a stop sign revving?