Hearing strange noises from your car is always a little scary. However, with age the mechanisms and various gears in a car naturally play, and it is normal for your car to make some noise over the years. However, some are normal or even trivial, while others are the sign of a major failure and therefore of a repair to be carried out quickly or risk receiving a large invoice.
In this article, we will see the case squeaky car shock absorber. To do this, first we will find out why your shock absorbers squeak? Then, secondly, what to do to avoid hearing this unpleasant noise, and what solutions can be implemented to correct your problem.
Why are my car's shock absorbers squealing?
How do car shocks work?
First part of our article, we will try to explain why your car's shock absorbers make a squealing noise. You must first understand that the suspensions of your vehicle have several functions:
- Ensure good handling of the vehicle
- Limit the impact of shocks and road deformations on the behavior of your car
- Avoid a significant transfer of weight to a part of the vehicle which could cause it to slip or increase the braking time
- Provide driving comfort
Shock absorbers or suspensions are wearing parts, and while there is no reason to change them very regularly, if you keep your car for a few years there is a good chance that you will need to replace them. To enlighten you on your shock absorber squeal problem, we will first explain to you how a shock absorber works.
A shock absorber is actually a set of two parts, a hydraulic cylinder provided with a piston which will move vertically according to the deformations of the road and the displacement of masses on the vehicle. Then, a spring, which will have the function of assuming the load to be damped. If one of these parts is worn this will necessarily affect the behavior of the vehicle.
Causes of squeaking car suspensions
We now present to you the few reasons which generate noise at the level of a vehicle's suspensions:
- Oil leak: The piston and the cylinder are a set which works in an oil bath and the oil will serve as a stimulus which when put under pressure will firm the suspension and relax your shock absorber once the shock has been absorbed. If you lack oil your shock absorber may be abnormally flexible, only the spring will take charge of the shocks, moreover, the movement of the piston in an empty or poorly lubricated cylinder may cause a shock absorber noise. squeaky. Do not ride with a leaking shock absorber! It is an essential safety device, if you identify an oil leak, take your car directly to your garage.
- Deformation of the shock absorber: Following a shock, or abnormal wear, it is possible to twist the axis of the cylinder, thus, each time your suspension is going to compress you will hear an abnormal noise because of the warping of the axis. It is important that the axle remains straight, otherwise the pneumatic system could be damaged and a leak could be created.
- Rust or severe oxidation: Finally, a less serious problem but which can occur if your vehicle is particularly old or if you live near a coastal area, an oxidation of the suspension sleeves can generate a noise present during compression, this can be trivial, but it is better to have the level of oxidation checked otherwise the shock absorbers will be weakened.
How can I prevent a shock absorber on my vehicle from squealing?
Now that you understand why your suspension is making noise, we will try to prevent you from having to change them early the next time. If you needed to change them, you have probably realized that replacing them involves a bill of several hundred euros or even more than a thousand euros if you change all 4 at once. Here are some tips for increase the life of your shock absorbers:
- Have them serviced every 20 km
- Adopt a flexible driving: Indeed, a sporty driving will wear out your suspensions prematurely.
- Avoid bad roads: It may seem logical but it will deteriorate your shock absorbers very quickly. If you can't avoid them, adapt your pace and avoid big shocks as much as possible.
- Beware of extreme temperatures: There are gaskets and rubber on your shock absorbers, cold and heat are not going to do it any good. If you can, try to shelter your car in the winter
All the abnormal signs on a car should be scanned and inspected, the same goes if your vehicle white smoke at startup.