Ok, There is a squeak in my 1995 Mazda Miata that happens when in reverse, or slowing down when in gear. The sound goes away when the clutch is engaged or the car is out of gear. The sound slows down with the RPMs. So far my guesses are a transmission mount or a loose pulley. All of my belts look good.

The car also bumps when the car is at idle like at a red light. Just a slight bump felt in the car with barely any change in RPMs. It happens every 30 secs or so, or sometimes every couple minutes. All my hoses look good, so I don’t think it is a vacuum though I could be wrong. Ideas or guesses?