![]() However, even if grease seems to solve the problem, the squeak could be a sign of a greater issue. A properly lubricated system will also prevent significant build-up of dirt. Sometimes creaks in suspension and steering systems are down to a lack of lubrication between metal components such as tie rod ends and shock units. It’s always best to get your vehicle checked by a professional if you have any concerns, but this guide might give you an idea of the potential problems with your suspension. While that might sound like a fairly simple system, it includes a number of components that could wear down over time due to the stresses inflicted by driving. The anti-roll bar connects wheels on opposite side of the vehicles, so when one wheel is forced higher than the other during a turn, the bar resists the twist, keeping the car level. An anti-roll bar is a torsion spring meaning that it resists twisting force. Anti-roll bars are used to reduce body lean when cornering, and minimise the weight transfer to the outside tyres in the turn. Without a system in place to manage this, this could result in one side of the car coming off the ground or even rolling. When your car goes around a corner, the body will lean to the outside, leading to an uneven distribution of weight. If your shock absorbers are worn or damaged, you’ll experience far more bounce when you go over a bump because the springs don’t have anywhere else to release that kinetic energy. The movement of the piston forces the oil through holes and valves to control the resistance of the movement, converting it into heat. Inside a shock absorber is a piston which moves as a tube filled with oil. The shock absorber takes some of that energy and converts it into heat. As the spring decompresses, that potential power is converted into kinetic energy. While the springs absorb kinetic energy when compressed, a shock absorber, more correctly known as a damper, is used to dissipate this energy by converting it into another form, most commonly heat. This movement absorbs the energy of any bumps on the road. As the wheel moves down, the spring is compressed, and when the wheel moves up, the spring is stretched out. ![]() While there are a few different types of suspension springs (historically, leaf springs were common) most cars today use a steel coil spring. Despite the many variations, all suspension systems feature the same three major components. There are two main types of suspension – dependent, which features a fixed axle (meaning the movement of one wheel will impact that of the other) and independent, where each wheel can move independently. It also works to keep the car on an even keel when cornering.Ī suspension system is comprised of a series of components that connect the main body of the car to the tyres and allow relative motion between them in order to provide a comfortable ride. The suspension system absorbs the shocks and vibrations that are inflicted on the wheels – by bumps, humps, potholes and general imperfections in the road – without passing any further reverberations onto the frame of the car and in turn, its passengers. Your suspension is designed to provide a more comfortable ride without compromising on handling, while maximising the friction between the road and tyres during acceleration, cruising and braking. If you’re distracted by sounds when you move over uneven surfaces or speed humps, you might be in for a bumpy ride. Squeaking or creaking noises from your suspension can be annoying but they could also be a sign that there’s a problem developing with your car. A squeaking sound could indicate a serious problem with your suspension. ![]()
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