Coil springs are a vital part of the suspension system found in most modern vehicles, including passenger cars, SUVs and light trucks. Positioned between the chassis and the wheels, they work by compressing and expanding to absorb the impact of road irregularities; helping to maintain vehicle stability, ride comfort and consistent ride height. Coil springs also play a key role in supporting the vehicle’s weight and keeping the tires in proper contact with the road. Over time, they can weaken or break due to wear or heavy use, leading to symptoms like a bumpy ride, uneven vehicle height or poor handling. Replacing worn coil springs helps restore proper suspension performance and overall driving safety.