Recently,when I am stopped with the engine running and my foot on the brake,I start getting a low heavy vibration inside the car.It sounds like it is coming from the passenger side.You cant hear it outside of the vehicle.It also does it when shifted into park.Sometimes it runs so rough it almost seems ready to stall.It wont do it when motor is cold only after you have driven for about 10 minutes.No check engine light or anything is showing.The dealer replaced 2 clutch plates in the transmission as part of a service bulletin but the problem is still there.Getting very frustrated as they basically told me there is nothing more they will do without a error code coming up but something is obviously wrong,the car never did this until recently.