Strut Mounts are an important component of your car´s suspension system. The main function of Strut Mounts is to provide a mounting point for the top of your vehicle’s strut assemblies to connect to your vehicle’s chassis. If you have a car with a four-wheel-independent suspension system your vehicle will have four strut mounts, two in the front and two in the rear. However, if you have independent front suspension only, you would have only two strut mounts. A strut mount is installed like a sandwich. One side bolts to the vehicle, the other side to the strut. In the middle is a rubber insulating material. As the vehicle moves and goes over bumps or rough roads, the up & down impact pushes and pulls at the mount. The mount’s job is to cushion the impacts to reduce the jarring effect, noise and vibration that could transmit into the vehicle. On many front struts, the mount also includes a bearing that the strut attaches to. With one on each side of the vehicle, these bearings act as the steering pivots. The bearing is a critical component that affects steering movement smoothness and response.
Due to the nature of its function, a strut mount is subject to constant stress and it is prone to wear overtime. There are two main reasons causing Strut Mounts wear: age changes the density of the insulating material so more noise and vibration can be transmitted into the vehicle and the bearing portion of the mount wears. Strut mount inspection should start with a road test checking for unusual noise, pulling, or steering binding. A worn or damaged mount can cause a variety of symptoms including: clunking noises, vibration, loose, stiff or noisy steering, tire alignment, tire wear, loose or damaged components, excessive movement, cracked or sagging rubber or corrosion.