A: To access and inspect the motor and transmission mounts, raise the car and support it with jack stands. Push upward and pull downward on the motor and transmission case to check the mounts. If the case can be pushed upward but not pulled down, it indicates worn rubber and a bottomed-out mount. If the rubber separates from the metal plate, the mount needs replacement. Replace any mount with hardened or cracked rubber. Ensure all attaching nuts or bolts are tight.