What is the Purpose of a Damper on a Car

What is the Purpose of a Damper on a Car

Dampers refer to the hydraulic suspension components that hold a car springs from rebounding independently over bumps and potholes. They are formally known as dampers. We can call them to shock dampers/absorbers as well.

Invisible and often not examined, dampers are one of the solutions on and off-road potentiality. In fact, they are so mandatory to a vehicle’s progress, racing teams around the globe spend unlimited time and limitless dollars fine-tuning them.

A damper is considered a long metallic cylinder sealed at both ends, with a piston sticking out at one end and they are a crucial component of the suspension, with one interrelated to each wheel. In many cases, the cylinder is charged with hydraulic fluid. Without getting too formal, there are various types of dampers available, even adaptable ones but originally, they all do a similar job.

What dampers do is command the bouncing movement of the spring by bringing resistance, to make sure the tyres are kept in connection by the road. For example, when we recoil a ball and catch it, we are limiting its recoil. If we don’t catch it, the bounce continues to recoil with each recoil gradually smaller until and unless the ball comes to calm. A car without dampers would act the same way. After striking a bump it would recoil up and down repeatedly until it entirely adjusted in its normal state.

The damper is like you transmissible the ball, controlling the recoil. Commonly, dampers do two things. Apart from adjusting the movement of springs and suspension, dampers remain the tyres in connection with the ground at all times and whenever the tyre loses connection with the ground, the capability to drive, steer and the brake is compromised.

Auto parts suppliers supply dampers as well and have sound knowledge about which of their products your car is in need of.


Dampers play a major role in the ride and handling of the car. Apart from giving us a convenient ride, dampers are considered as the great helping hand to manage proper stability, cornering, handling, traction, braking, stopping distance, and overall safety. But dampers are taken to be one of the most missed maintenance items of a car. Unlike a flat tyre or blown headlight globe, dampers’ progress collapses formally over a long period of time, and often unknowingly, drivers adjust their driving style to compensate.


When the car is in motion, the dampers are continuously in working mode, so they do wear out. But there are alarming signs to tell us our dampers need replacement. Nose diving or swerving when braking hard indicate that worn dampers can no longer adjust the weight transfer of the car and the piston in the damper is flattened too rapidly. After striking a bump, our car must fall and come back to its primary position and settle after one, or two rebounds further. If it doesn’t it means the dampers are worn out as they no longer adjust the recoil of the springs. When dampers are worn, cars become more unbalanced, which is boosted in SUVS AND LCVS due to their added height and weight.

Rock and Roll might be wonderful to listen to but it’s no entertainment when cornering. If the vehicle bends excessively in corners, it’s another story sign that the dampers are worn. Another hint is vibration through the steering wheel. Often it is simply a wheel out of order but it could well be that one damper is more worn than the other, organizing an uneven adjusting of the suspension. Rough or early wearing of tyres is another sign of worn dampers caused by the shocks’ capability to control the suspension, causing the tyre to recoil on the road over bumps and through dips and wear unevenly.

If you have the wheel off and observe there is leakage from the shock, or the bushes are cracked and squeezed, then it’s time to say goodbye to them and buy new ones. The same applies if the cylinder is broken and damaged on the outside as there is a good opportunity they are dented on the inside and not functioning properly.

And when the time comes to the replace of dampers,  must do in pairs otherwise rough control of the recoil by one side of the car to the other occurs, resulting in an inconvenient and uneven ride and compromising the car’s functionality.

Moving your car to the road are four postcard-sized contact areas of the tyres. It is essential to have your dampers operating accurately to ensure you have the maximum grip and control through these contact spots at all times.


Inside the damper’s sealed cylinder are valve passages, and hydraulic fluid. As the suspension travels up and down, the piston moves inside the cylinder. As this takes place, the flow of fluid is slowed by the valve passages, which in turn controls the speed of the piston’s movement and therefore the motion of the suspension. Dampers automatically adjust to road conditions and the speed the suspension moves the more resistance the dampers provide.

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