Your car's suspension system should give you a smooth ride and help ensure that the wheels grip the road while you're turning, speeding up, and or slowing down. Most of today's suspension systems are made up of a combination of springs and shock absorbers. Your car's springs help support the car, while shocks help control the response of the springs. Springs are generally very durable and should last for the life of your car. Shocks, depending on the quality, may wear out periodically. If your car begins to ride unusually rough or make strange noises, it may be a suspension problem. Contact a qualified mechanic in your area for more information on your car's suspension system.