The usual way to test a shock absorber is to push down on a corner of the vehicle a few times to get it to bounce and then stop pushing and see how much it continues to bounce before stopping. A good shock absorber should stop the bouncing right away.
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What does a broken strut sound like?
Some worn-out struts (but not all) will make noises that can alert you to their declining state. Bad strut sounds are usually described as a hollow clunking or banging type of sound. You'll typically hear the noise when the vehicle is traveling over irregularities in the road.16 Jun 2020
Shocks and struts help keep the vehicle stable during acceleration and braking. When a vehicle's shocks and struts are damaged, the front end can dive upon braking while the rear end squats during acceleration. This happens when these components aren't strong enough to handle the weight of the vehicle.
Why does my car squeak when driving slowly? Brake pads and discs that have been fitted poorly or are worn down will often cause a squeaking noise when you drive slowly. When you press the brake pedal, the brake caliper clamps around the pad, applying pressure to slow down the movement.
On average, if your car has been “babied,” you can expect your shocks/struts to last about 10 years. If you have really used your car like a workhorse, 5 years is probably all you can expect. This means that for the average driver, 7 or 8 years is the maximum life expectancy of most shocks and struts.19 Apr 2019
A broken shock absorber will result in your car bouncing around, as well as excessive rolling, squatting and diving. In other words, it won't be comfortable. Plus, your car will be harder to control, especially at high speeds.