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Your Position: HOME > Company > What are the symptoms of a broken car ball joint?
CompanyCompanyThe ball joint of a car is also called a universal joint, which mainly provides multi-angle rotation for the steering mechanism, thereby reducing vibration and achieving smooth steering. If the ball joint is broken, the car will have the following symptoms:
1. When the car is driving on a bumpy road, it will make an abnormal noise;
2. The vibration of the wheels can be felt when driving at low speed;
3. The car is unstable during driving, swaying left and right, running off-track, and even causing brake failure in severe cases;
4. If the open space of the ball joint is too large, it is easy to break if it is subjected to impact load again.
The price of replacing the ball joint in the repair shop for general models is about 120-180 yuan, and the replacement price may be higher at the 4S store. Still, the specific cost depends on the particular situation. After all, different models and regions have additional fees. Different.
There is no fixed replacement cycle for the car ball joint; it needs to be replaced if it is broken. The road conditions generally determine the life of the ball joint. Generally, it is checked once every 80,000 kilometres. Under normal circumstances, 100,000 kilometres is no problem. However, the car often drives on bumpy road conditions, and the life of the ball joint will be relatively short, and there is a possibility of damage in general 30,000-40,000 kilometres.
How to judge the wear of the ball joint
1. You can feel whether the ball joint is worn or not by turning the steering wheel; the freedom of the steering wheel is generally within 15 degrees. If it exceeds this range, and the steering rod moves, but the horn does not move, it means that the steering ball joint is Greater wear.
2. Lift the car so the wheels are off the ground and drag the tires up and down. The tire can be easily pulled up and down, which means that the ball head has a large amount of space. In the above situation, we need to replace the ball joint as soon as possible to avoid the danger of driving.
Parts that are easily overlooked in car maintenance
As an indispensable means of transportation for daily travel, every part of the car has its essential role, and it is necessary to understand them deeply.
The steering rod is one of the essential parts of the steering mechanism of the car, but some riders must not know much about it. Next, let us take you to the posture.
Classification and function of the steering rod
The steering rod is a component used to connect the front wheel's steering knuckle and steering gear. When the steering wheel is turned, the front wheels can be rotated from side to side.
The steering tie rod is divided into a steering tie rod and a steering straight tie rod: the steering tie rod is a part of the steering trapezoid of the car, which plays the role of steering force transmission;
The straight steering rod connects the steering arm and the left arm of the steering knuckle. After the steering force is transmitted to the steering knuckle, the wheels can be controlled.
Although these two steering rods work in different ways, their functions are the same, both of which can transmit large push-pull loads and achieve flexible space movement, while both have good impact resistance and reliability.
Steering rods can directly affect the stability of vehicle handling, the service life of tires and the safety of operation. Since it is so important, how should it be inspected and maintained?
Inspection of steering tie rods and their components
Steering rod
The slack steering rod is a serious safety hazard; this part must be carefully checked when maintaining the car. During routine inspections,
Hold the tie rod tightly and shake it vigorously. If there is no shaking, everything is normal; if the vibration occurs, the ball joint or tie rod assembly should be replaced in time according to the situation.
steering ball
Steering ball wear and internal rust can cause inaccurate wheel alignment, resulting in vehicle tire side wear, steering deviation, and front-end noise.
During a routine inspection, the top of the ball joint should be grasped by the hand, and the ball joint should be pushed horizontally to observe the movement of the steering knuckle and the ball joint.
Consider replacing the ball joint if the movement exceeds 3mm or parts are damaged or missing. When turning the ball joint, if there is adhesion or rough rotation, the ball joint should be returned in time.
Maintenance of steering rod and ball joint
1. Steering rods may suffer damage and break on a rough road or at high temperatures. During regular operation of the vehicle,
Vehicle owners should conduct regular maintenance inspections and pay close attention to whether the steering rod assembly and joint assembly performance indicators are within the standard design and use requirements.
Try to avoid any abnormal impact or collision except for the external force generated during the vehicle's operation.
2. With the increase in use time, the grease of the steering ball will gradually dry, and it's lubricating ability will decrease, which requires us to clean and lubricate the steering ball.
The inner head can be cleaned and lubricated for the steering ball joint. Still, the outer ball joint cannot be disassembled, cleaned and lubricated due to the disposable dust cover. Hence, avoiding spraying detergent on the outer ball joint is necessary.
3. When parking, if the steering wheel does not return to the correct position, the wheels will pull the steering rod and cannot be returned, and the gear of the steering wheel and the rack of the steering rod are also under force.
Over time, these parts will be accelerated to age or deform. To improve the service life of the steering rod, please remember to return the steering wheel to the correct position after parking.
You can also know the minor problems of the car from the steering wheel of the vehicle.
Car owners have always been accustomed to looking at faults from the indicator lights, so do you know that a small steering wheel can also judge many spots? Today, let's talk about the steering wheel; what can we think about what's wrong?
When the vehicle is driving on the road, there is an abnormal noise in the chassis. In severe cases, the cab and door can be felt shaking. The steering wheel also shakes very firmly, and even the shaking hands are numb. It means that the car has begun to malfunction!
Of course, the magnitude of this vibration is not very large. Generally, it may be due to resonance, which has little effect on vehicle use. It is necessary to check whether there is a problem with the rubber sleeve of the steering wheel transmission device and whether the bolts fixing the steering wheel transmission device are loose.
If the car shakes when the speed reaches 30-40 kilometres per hour, this situation may be caused by the deformation of the tires due to friction, collision or aging during daily use. I need to change the tires.
If the car shakes at 80-90 km/h, it may be caused by tire deformation or the vehicle's driveline. If it is out of alignment, it should be adjusted, or the front axle should be set up to try to turn the wheel to check the static balance of the wheel and whether the tire is deformed too much. If the deformation is too large, it should be replaced in time.
During high-speed driving, the brakes are shaken when the brakes are stepped on, and the brakes are applied too hard or too frequently, which may also cause the brake discs and brake pads to overheat, deform when cold, and cause the steering wheel to shake. Generally, these symptoms can be solved as long as the brake discs and pads are replaced.
It is normal during driving on flat roads but abnormal when driving on low-lying roads. It is because when the car is going, the ball joint of the tie rod wears loose or the rubber sleeve at the joint falls off. It may also be that the tire becomes irregular due to long-term wear and tear. It should be sent to a professional maintenance point for inspection, and the damaged parts should be replaced in time.
When the vehicle is started, it is found that the steering wheel is hefty, and then it will be okay again, but if the steering has been laborious, there may be the following situations:
1. Insufficient tire pressure
The tire pressure of the front tires is significant. If a tire pressure monitor is in the car, it will be easier to find problems.
2. Various parts of the steering system
Suppose the rolling and sliding bearings of various steering system parts are too tight. In that case, the bearings are not lubricated enough, the ball joints of the steering tie rods and transverse tie rods are adjusted too tightly or lack oil, and the steering shaft and casing are bent off, which will cause jamming.
3. Steering wheel deviates
There are many reasons for the deviation of the steering wheel, but basically, it is caused by left-right asymmetry.
More seriously, it may be caused by the difference in the left and proper clearances caused by the aging of the suspension components. This situation generally occurs in old cars for many years, and it can be entirely solved by replacing the parts in time.
4. Deviating when you hit the brakes
The vehicle will not deviate under normal driving conditions, but it will turn when the brake is applied, and the heavier the step, the more serious the deviation will be. In this case, it may be caused by the unbalanced braking force of the braking system on the left and right tires. The best way is to go to a professional maintenance place to find someone to monitor the braking system to see if it can be better solved.
5. There is abnormal noise when turning the steering wheel
When the steering wheel turns, it makes an abnormal sound, and check whether the brake is pressed and whether the strange sound is caused by turning the steering wheel after turning on the steering switch. If not, it is necessary to judge the direction of the sound. If the sound comes from the steering wheel's underside, you need to check the steering column dust cover. The steering column dust cover produces a friction sound due to a lack of lubrication. You only need to apply butter to the dust cover, and the sound will not be heard. I will have it again. If the sound is coming from the steering wheel, it is mainly caused by the interference of the airbag hairspring in the steering wheel. Remove the steering wheel airbag hairspring and apply butter to see if it still sounds. If it still sounds, replace the airbag hairspring. The airbag hairspring may be damaged.
In addition to the above symptoms, it is also necessary to check whether there is oil leakage at the pipe joint of the booster oil tank, whether there is a lack of oil in the oil tank, and whether the hydraulic oil is dirty and deteriorated. Check if the booster pump is damaged. Check if the motor is faulty and needs to be replaced.
Check whether the inner bearing sealing ring of the steering gear is aged or damaged. The vehicle needs to be regularly sent to a professional maintenance point for maintenance of the car to prolong its service life of the vehicle.