Shocks wear out slowly over time, so it’s hard to notice when they get badly worn. One way to tell is to look for an uneven, cupping wear on your tires. If the shock or strut is leaking fluid, it needs to be replaced. If your car feels floaty in turns or if the front end dips a lot when you stop, it is time to get your shocks checked. Your owners’ manual will tell you when your shocks should be changed – it’s usually between 15,000 and 30,000 miles or 24,000 and 50,000 kilometers .
When you replace a shock, be sure to replace all four. Then your car will have an even suspension and will handle much better. Talk with your service advisor about how you drive. No, not your traffic violations, but how often you carry heavy loads, tow a trailer or drive in rough terrain. If you do a bunch of that, you’ll need a heavy duty shock.