Engine mounts are designed to absorb vibrations generated by the engine. If they become worn or damaged, these vibrations can be transmitted to the rest of the vehicle, causing the car to shake.
Transmission Mount
The transmission mount is responsible for securely connecting the transmission to the chassis of the vehicle. When this mount becomes worn or damaged, it can cause the transmission to move and vibrate, which in turn can cause the car to shake.
Driveline Components
Worn or damaged driveline components such as the driveshaft, U-joints, or CV joints can also cause the car to shake when shifted into Park or Reverse.
Loose or Damaged Engine or Transmission Components
Any loose or damaged engine or transmission components can cause the car to vibrate and shake when shifted into certain gears, such as Park or Reverse.
Engine Timing Issues
Engine timing problems can cause vibrations that can be felt in the car when in certain gears, such as Park and Reverse.
Fuel Injection Problems
Fuel injection issues can also lead to vibrations and engine misfires, which may be felt as a shake in the car.
Faulty Ignition Components
Faulty ignition components, such as spark plugs, plug wires, or ignition coils, can cause misfires and vibrations that are more pronounced when in certain gears, such as Park or Reverse.
Vacuum Leaks
Vacuum leaks in the engine or intake system can cause engine misfires and vibrations, which may be felt in the car when in Park or Reverse.
