Beating on the steering wheel at speed: possible causes and solutions to the problem

A long road tires everyone, and the driver even more. With such a situation as the beating on the steering wheel at a speed that lasts a long time, many drivers came across. It is worth noting that the vibration of the car can be natural, and there are no prerequisites to worry. To such cases, uneven road surfaces are considered. In other cases, on an even surface, the presence of extraneous vibrations is an alarming signal, indicating a malfunction.

If you ignore the appearance of vibration, then in the future you can seriously pay not only for expensive repairs. At moments of vibration, special attention is paid to the steering wheel, its imbalance. Most often, the beating on the steering wheel at speed arises from the lack of balance of the wheels, but this is not the only reason. There are many reasons for the vibration of the steering wheel, to determine which it is necessary to test the car on the track, periodically switching from one gear to another.

The main causes of vibration of the steering wheel

When there are knocking on the steering wheel, remember the speed at which it happened. Then you should diagnose the car on the go and set the speed mode, at which the vibration disappears. Very often, the beating manifests itself during driving at low speeds and at medium revs, while the steering wheel beats quite unpleasantly. But if the driver slightly increases the speed, then the vibration ceases to manifest. Perhaps its repeated manifestation during a sharp acceleration. When testing your car, you should look at the manifestation of shaking during a sudden braking or with acceleration. It is necessary to view the vibration strength during the diagnosis. The reasons for the rudder's beating at speed are varied.

Improper balancing due to foreign matter

The most common reason for beating on the steering wheel is the presence of foreign matter on the inside of the wheel. That is why there is a violation of the balancing of the wheels, because of what the machine on the track begins to vibrate at different speeds. If there is dirt on the discs, and the road is uneven, then after a while the runout may stop due to the self-falling off of the clumps of dirt. However, in the presence of knocking, it is better to stop and look at the disks. If there is dirt, it is better to remove it with a special metal brush. The easiest way to determine the presence of it in cast discs, on stamped same wheels, such a survey without undoing will be very difficult. In this case, you need an overpass or a ski lift. Similarly, the snow also acts on the wheels, which clogs the discs on the inside as tightly as possible, which affects the vibration.

Lack of wheel balancing

The wheel disks are made uneven in shape and composition, because of which each region has different masses. The center is drawn to the side where the largest mass is located. As soon as the center shift occurs, the centrifugal force also shifts. As a result, the steering wheel rushes at speed due to the available transmitted forces along the chain of links at high speeds. That is why it is necessary to balance the wheels after each replacement of tires or disks. Balancing is the process by which the mass of the wheel is aligned along the entire contour using special elements, popularly called "weights". They are glued or clogged to the wheel disc on the inside.

Natural wear of tires

When the vehicle is operated for a long time with improperly balanced wheels, tire wear will rapidly deteriorate at some points, which subsequently leads to severe vibration. In addition to the wear of the rubber, the pressure will increase when working on the bearing of the hub and certain elements of the suspension, which will increase the beating on the steering wheel at speed. Determining the disturbed balancing is quite easy. When driving at high speeds, a weak vibration appears. On the example of cars, the speed should be at least 60 km / h. Visually the wheels will be intact, there will be no deformation marks on the tires and disks.

Deformation of wheels

The degree of its development has a strong influence on the presence of vibration. The deformation of the wheels occurs when the disk enters the pit at high speed. Curvature of the wheel can be determined by visual inspection: if the disk fell into the pit and has deformation in some places, dents will be observed on the rim of the wheel. In most cases, the front of the disc is deformed less often than the inner side. Among the cast and steel wheels, the deformation is inherent in the latter. Sometimes the disk is curved from the moment of its purchase. Check its curvature on a special stand for wheel balancing, which is available in any tire shop. If the wheel is to go around the figure-eight, it will tell you about the presence of a strong deformation or curvature from the moment of manufacture. Because of this, there is a vibration not only of the steering wheel. It is transmitted over the entire suspension, and then spreads around the body. When worn or deformed tires are used, the rudder will be beating at a speed of 120 km / h. In this case, not only the beating of the rudder, but also the vibration of the machine, which depends on the degree of wear, can take place. The only way out of this situation is a complete replacement of disks or tires.

Insufficient tire pressure

If there is insufficient pressure in the wheels, then vibration will begin to occur throughout the vehicle (less often it goes to the steering wheel). After you have pumped tires, you can solve the existing problems with vibration.

Weak wheel fastening

Running at low speed can be observed with weak fastening of the discs to the hub. If there is a strong vibration at the beginning of the movement, you must stop immediately and make a visual inspection of the fixing bolts. As a rule, some of them can quietly turn their hands. However, if they do not scroll, you need to take the balloon wrench and tighten the bolts. Otherwise, ignoring the situation will lead to a simple unscrewing of the wheel from the drum, which can cause an accident. At low speeds, it will not be so dangerous, but still you should not bring the car to such a state. Also, there may be an acyclic, that is, a non-constant ripple of the rudder at different speeds.

Malfunction of a suspension bracket or a steering system

There are other reasons, in which there is a beating on the steering wheel at speed due to untimely maintenance of the vehicle. The disabled suspension strongly affects the grip of the car with the road. In the presence of play in the suspension elements or steering system during the rotation, the same vibrations will occur, as with the use of bent wheels. This reason is indirect.

Runaway when braking at speed

This is a very serious malfunction. If there is a rudder runout at high speed at the moment of braking, this is the main sign of wear of the brake discs. This indicates that the discs or drums have traces of deformation, that is, the surface will be wavy. It can be caused by a long period of operation or by overheating of the drum or disc during sudden braking. If there is a deformation of the drum or disc, the vibration will be observed only during braking, when pressing the pads on the disc. Solving the problem can only be done by replacing these elements with new ones.

Running in the corners

When driving, the beating on the steering wheel at a speed may also appear during the turn. In this case, you can safely say about the need to conduct a diagnosis with a subsequent replacement of the suspension, as a failure came out the joint or the silentblock. When turning, in addition to shaking, you will hear a characteristic crunch from under the wheels. When carrying out the replacement of the CV joints, it is necessary to check the efficiency of the bearing of the hub and, if a large workpiece is found, replace it. To prevent vibration during cornering, you need to conduct periodic inspections at the service station. When self-inspection of the car on the pit, the first sign of the approaching vibration is a crack on the anthers. Replace them with grease filling. When driving on an uneven road, a heartbeat indicates a malfunctioning operation of the steering rack. A bushing of the lever may break out. Also, the out-of-action damper influences the beating on the steering wheel. Thus, there are many reasons that cause a beating on the steering wheel while driving. In each case, the first thing to do is to make a visual inspection and repair the malfunction.

So, we have found out the reason of beating of a rudder on high speed and at braking.