Checking shock absorbers (Honda Accord 3)

The function of the shock absorber is to limit the spring travel during compression and rebound cycles. Contrary to popular belief, shock absorbers do not affect the ride height or comfort of the vehicle other than to limit the amount of bouncing or shaking. These factors are controlled by other suspension components such as the springs and tires. Worn shock absorbers can affect handling. The simplest test for shock absorbers is to simply press on a corner of an unloaded vehicle and release it. Observe the movement of the body after release. In most cases, the body will rise above its original position, drop below it, and quickly settle down. This indicates that the shock absorber is slowing and controlling the action of the spring. Any tendency for excessive up and down bouncing or failure to return to rest within 2-3 cycles is a sign of a faulty shock absorber. Obvious problems such as leakage or bending also indicate failure.

It is normal for any hydraulic shock absorber to have a light oil film on top due to normal air exchange. Do not mistake this for a leak. Under normal conditions, most shock absorbers used on Honda vehicles will last a long time without replacement. More often than not, the common cause of poor ride quality is tire wear, not a suspected shock absorber failure.

Although each shock absorber can be replaced individually, it is recommended to replace them in pairs (both front or both rear) to ensure the same response on both sides of the car. Springs can only be tested after they are removed from the car. There is no easy way to check the spring compression in a garage setting unless you have a special spring tester.