Truck shaking at 80? Find the reasons from these aspects

Vehicle shaking is a problem that many drivers have encountered, especially when the vehicle speeds up to 80 miles, there will be body shaking, and even accompanied by abnormal sound, resulting in vibration in the cab, the driver's hips or feet. In the long run, it will not only aggravate the abnormal wear of vehicle parts, but also seriously affect driving safety.

Under normal circumstances, the vehicle jitter in the process of driving, the probability is that the following three structures have problems: tire hub, direction machine, drive shaft.

So how do you distinguish between self-tests? The DARO trailer axle is analyzed from the phenomenon of vehicle shaking.

Vehicle jitter can generally be divided into two types:

One is that the vehicle reaches a certain speed before jitter, and there is no jitter if it does not reach this speed;

One is that the situation of vehicle shaking persists, and becomes more intense with the increase of speed.

If the vehicle reaches a certain speed before the phenomenon of shaking, there may be the following reasons:

1, tire imbalance

This reason is more common in the car, but the truck can not be ruled out.

The wheel of the vehicle is a whole composed of tires and wheels, but due to manufacturing and other reasons, the mass distribution of each part of the whole can not reach a very uniform state. Especially after the owner dismantled and installed the tire, the tire dynamic balance is not carried out, and when the wheel rotates at high speed, the dynamic imbalance phenomenon will be formed, which makes the wheel shake, the steering wheel shake, and the body shake. In this case, going to the tire shop to do a dynamic balance can basically solve the problem.

In some cases, when the tire pressure of the vehicle tire is inconsistent, it is also easy to cause the phenomenon of high-speed shaking of the vehicle, and the owners should pay attention to distinguish.

2, steel ring deformation

This is more common on cargo vehicles, especially vehicles that often walk in poor road conditions, the steel ring is easy to deformation because of road bumps or external impact, at this time it needs to be replaced or repaired.

3, tire deformation

The owner can see whether the tire is damaged or raised, and feel the wear of the tire surface carefully by hand. If there is tire deformation, it is necessary to replace it in time.

If the jitter has always existed during the use of the vehicle, the faster the speed, the more severe the jitter, the reasons for this phenomenon may be the following:

1. The ball head of the horizontal tie rod of the steering machine is worn excessively

Direction machine and ball parts are relatively active, a long time is prone to wear, there will be a slight Angle of inaccurate situation in steering, leading to tire jitter and other situations, if there is a loose nut, it is easy to damage the cotter pin and straight rod, affecting the vehicle direction control, resulting in driving safety problems.

2, the drive shaft deformation

The drive shaft bears a very important task in the use of vehicles, especially when the throttle starts and accelerates rapidly, the torque borne by the drive shaft is large, and it is easy to be damaged. In addition, collision, scratching, loosening of bolts, wear of bridge bearings and shock absorbing rubber sleeves, and distortion of the transmission shaft may cause the transmission shaft to jump and cause vehicle jitter.

In these two cases, the owner's own judgment and maintenance is more difficult, or it is recommended to a professional maintenance station for maintenance.

In addition, serious carbon accumulation of the engine, ignition system problems, oil pressure instability, aging of engine components, machine pad damage, etc., may cause the phenomenon of body shaking, the owner need not be too alarmed, if you can not repair yourself, you can go to a professional maintenance station for maintenance or replacement.