Hi Got Corolla 2007 Auto with 60,000 on the clock which has vibration on the front side. The vibration is all through the steering wheel, dashboard, through the floor and my seat and also passenger set as well. Starting the Air Condition will increase the vibration and off decrease the vibration. Sometimes(very rare) there is no vibration at all for first 10 mins and after that its start again. you start the car put in Drive and vibration start. You can feel the vibration even when its idle state. However, the vibrations decrease or reduce when I put the car in Neutral or Park. I went to Dealer and they said nothing wrong with it and it cannot find any problem with vibration and its normal in this model.( I am not expert so I can't argue with that but I think it’s not correct). Second time they said you need wheel alignment and rotation. wheels Alignment has been done and tyres has been rotated but still the vibration exists. Has anyone out there have any ideas about what causing this problem ? Thanks