Car shaking, causes and solutions

Owning a car for a long time will make your vehicle unable to maintain its original perfect function. And one of the most common and annoying problems is the phenomenon of shaking when driving on the road. The annoying thing is, the above inconvenience comes to you gradually, slowly until one day you wonder why you have this trouble.

Brake system

Vibration that occurs when braking indicates that the brake drum or disc may be warped, warped or unevenly worn on the surface. In addition, if the surface of the brake drum or disc is too dirty, it can also be the cause of this phenomenon. This is most obvious when the vehicle is moving at high speed, because at that time these rotating parts are subjected to uneven impact force from the brake pads, causing large impact forces, causing vibration and jerking.

To fix this, the technician usually has to remove the brake disc or drum, clean it, and straighten it if it is warped. It is best to replace the new brake disc and related parts.

Tires

The list of situations where tire problems can contribute to unpleasant road riding experiences without a smooth ride is long, but we’ve simplified it and listed the main points here:

+ Vehicle vibrates at certain speeds – requiring tire balance

+ Cracked or torn tires – require replacement

+ Uneven tire wear – Tire rotation required

+ Tires do not rotate roundly and roll unevenly – Replace with new tires.

Sometimes the problem isn’t the tires, but the wheels they’re wrapped around. Watch out for potholes and poorly maintained roads that could be putting your wheels at risk.

Shaft problem

Our vehicles are full of rotating or reciprocating parts that must move within certain dimensions or tolerances in order to function properly.

If an axle is bent, your car will be more likely to engage in a collision or mishap. This will create a jolt that will then occur. With this problem, the jolt will usually increase in intensity as you accelerate.
A related issue is checking the driveshaft. This rotating part transfers engine power to the rear axles and wheels in rear-drive vehicles. If the shaft is bent, the vehicle may shake.

Worn synchronizer joints fall under the same category. If the gaskets – rubber gaskets, covers around the drive shaft ends – are intact, and the clamps and lubricants are not leaking, they are most likely not the problem. But if the gaskets are torn, it means dirt, dust and road debris will get inside and damage the joints. For thosecarWith a front drive system, hot synchronizer joints mean you need to buy a new drive shaft.

Wheel rims

When driving, the rim hitting the curb may not cause damage but if you pay attention, the car may vibrate afterwards. This is because the wheel rim or half shaft is bent, causing the rotation of the wheel to no longer be in the correct orbit, causing vibration or simply losing the support bars used when balancing.

A bent rim or axle can be checked by a technician using a dial gauge to measure the deflection. Most manufacturers allow no more than 1/32 of an inch of deflection. Steel rims can be straightened. Aluminum rims must be replaced.

Engine

At first hearing, many people will think it is absurd, especially with modern engines today. However, we have to face the reality that when the engine is working, hundreds of different parts of the engine participate in the rotational motion, so although each engine is designed to be optimally balanced thanks to the balance shafts, the movement of hundreds of different parts at different rotational speeds still causes certain vibrations.

To eliminate these vibrations, manufacturers often place the engine on rubber mounts, also known as rubber engine mounts, so we often see almost no vibration when the vehicle is new. However, after a period of use, these rubber mounts will gradually lose elasticity, leading to vibrations that may appear gradually.

In addition, if the engine misfires (one of the cylinders does not start), the vibration and jerking will be clearly felt by the person sitting in the car. It is easy to check the misfire by removing each high-voltage line from the spark plug on the machine. If the vibration of the machine does not change when removed, it proves that the machine is not working and vice versa. At that time, depending on the cause, find a solution to fix this phenomenon.