Annoying vibration noise - need help for diagnosis
Here I have a 97 galant vr-g.
Vibrates at 40-100 randomly independent to load. Once vibration occurs, it is proportional to rev. Then if I let my foot off gas and immediately put my foot back or even rev up, vibration goes away. Everything seems very odd to me.
Vibration doesnt sound sharp or metal causing. It is a low pitch noise. Its also sounds like a a train going on full speed in a tunnel when I am in the train. Definitely can feel the vibration on the seat and the steering wheel and can hear the vibration noise throughout the whole car.
Has any one experienced the same thing at all? Or any ideas? Is there anyway to diagnose it? I know there are A LOT of possible causes.
I have replaced the rims just for the car's look one month ago so it shouldnt be caused by unbalanced tyres.
I m hoping that its not the transmission. Thanks