Motor Mount Function

• Motor mounts play a critical role in keeping your vehicle running smoothly. A motor mount has a metal frame and a rubber insert or inserts. A bolt secures the bracket on the engine to the rubber insert. The rubber insert's main function is to hold the engine in place, but it also allows the engine to move slightly under torque and absorbs engine vibration.
  
  Some high-end vehicles use hydraulic motor mounts. This type of mount performs the same function as a standard motor mount, but it has a hydraulic cylinder instead of a rubber insert.