Do you guys hear something vibrating from underneath the car when slowing down while you are still in gear? For instance I'm driving in fourth then I would let go of the gas pedal while still in fourth gear and I hear some vibrating sounds coming from underneath the car. Normal or not?

 

i get that too.. im taking my car to the dealer on tuesday.. i will find out

 

I'm guessing that it's simply "engine harmonics" causing things like heat shields and other bolted on stuff to vibrate. I have lots of these sorts of vibrations on my car. I just don't worry about it unless these things change to something out of the ordinary. If you're really worried about, take it in and have them look at it.