Steering wheel failure
Steering wheel shaking
Causes: First, the tie rod is loose, second, the universal joint cross shaft has a frame, third, the fixing bracket that adjusts the front and rear height of the steering wheel is loose, and fourth, the tire or wheel hub is deformed.
Treatment method:
1. When the vehicle is driving normally, at a speed of 90-120km/h, the steering wheel shakes or vibrates, which is usually caused by eccentric wear of the front tires, It is caused by wheel hub deformation or tire lead falling off. This situation can be solved by wheel dynamic balancing.
2. If the steering wheel shakes during normal driving without a specific vehicle speed, it is usually caused by incorrect inclination of the wheels. This situation requires four-wheel alignment to solve the problem.
3. When the vehicle is driving on uneven roads, the steering wheel shakes because the chassis suspension tie rod or ball head is loose. The suspension connector needs to be checked or replaced to solve the problem.
4. Replace the brake disc with a new one. 【Details>>】
The steering is heavy and laborious
Performance: When turning a moving car, the steering wheel feels heavy and laborious.
Cause: The rolling bearings in various parts of the steering system are too tight, and the bearing friction is too large. In addition, insufficient front tire pressure can also cause heavy and laborious steering.
Treatment method:
1. There is a problem with the steering oil, it becomes dirty and deteriorated, or there is oil leakage. If the booster oil is reduced, the steering wheel will feel heavy and needs to be replaced. Steering oil or add steering oil.
2. If the bearing fit is too tight, it will lead to poor lubrication of the bearing and cause jamming. If the bearing is damaged, it must be replaced in time. It is also necessary to specifically check the causes of the mechanical parts and the power-assisted system to rule out sealing damage such as oil leakage and air intake.
3. When the steering wheel becomes heavier, it is very likely that there will be problems such as poor circuit contact inside the booster system. You need to go to a 4S shop or repair shop to find professional personnel for inspection and repair.
4. If there is a problem with the front tire pressure, the car owner needs to park the vehicle on the side of the road and check the vehicle’s tires. If a tire is found to be deflated, the spare tire needs to be replaced, and then the vehicle must be driven to a repair shop. Repair flat tires.【Details>>】
Unable to start
Cause: The vehicle stalled; triggered The anti-theft function of the car steering wheel is disabled; the steering wheel booster fails; the power booster pump fails.
Treatment method: Re-start the vehicle with the key; suck out the old oil and then inject the new direction oil; you can repair the booster pump by grinding it. If it cannot be repaired, replace the booster pump. Yes; if the steering wheel cannot turn due to the steering engine oil pressure, you need to go to a professional manufacturer for repair.
Irregularity
Cause: The steering wheel’s swing arm, ball head, ball cage and other components The components are abnormal; the four-wheel alignment is not set properly; the tire pressures on the four wheels are inconsistent; the dynamic system is worn.
Treatment method:
1. The steering wheel is not aligned, but the vehicle can keep driving in a straight line. For this phenomenon, the four-wheel positioning can be adjusted according to the steering wheel alignment and the left and right toe-in values. 2. When you release the steering wheel, the direction will automatically deviate, causing the steering wheel to be out of alignment. This phenomenon also requires four-wheel alignment. At the same time, check the tire pressure, loose suspension, vehicle body level and other issues. 【Details>>】
Steering deviation
Cause: uneven tire pressure; different tire patterns or pattern on both sides Different shades; the steering system will also affect the car’s straight driving; the front shock absorber spring is deformed; the buffer zones on both sides are inconsistent; the front shock absorber is ineffective; and the brake of a certain wheel does not return well and completely separate.
Treatment method: Under normal air pressure, first check whether the tire wear is even, and then check whether the lower arm, ball head, ball cage and other parts are normal. If they are normal, you can only do four-wheel alignment first, and then make corresponding adjustments. 【Details>>】
Steering wheel swing
Performance: When the car is driving, it feels like the two front wheels are swinging from side to side and the steering wheel is difficult to control.
Reason: The ball head of the horizontal and vertical tie rods is adjusted too loosely (the spring is broken or the adjustment clearance is too large); the free travel of the steering wheel is too large; the meshing clearance between the steering wheel and the worm is too large; the clearance between the upper and lower bearings of the worm is too large; The gap between the steering knuckle kingpin and the bushing is too large; the front wheel housing bearing is too loose, or the front wheel rim is out of round and the swing difference is too large; the front wheel positioning is misaligned.
Treatment method:
1. The rotating mass of the steering wheel is unbalanced or the hub bearing of the steering wheel is loose. The dynamic balance should be corrected or the bearing should be replaced.
2. The steering wheels use retreaded tires and should be replaced.
3. The positioning of the two steering wheels is incorrect and should be adjusted or replaced.part.
4. If the steering system interferes with the movement of the suspension, parts should be replaced.
5. The meshing clearance between the main and driven parts of the steering gear or the bearing clearance is too large, and the bearings should be adjusted or replaced.
6. The vertical arm of the steering gear is loosely matched with its shaft or the ball joints of the longitudinal and transverse tie rods are loosely connected and should be adjusted or replaced.
7. The connection between the steering gear and the frame is loose and should be tightened.
8. The suspension shock absorber of the axle where the steering wheel is located has failed or the left and right shock absorbers have different performance and should be replaced.
9. The leaf spring U-shaped bolt of the axle where the steering wheel is located is loose or the steel plate pin and bushing are loose, and they should be tightened or adjusted.
10. The left and right suspensions of the axle where the steering wheels are located have different heights or stiffnesses and should be replaced.
Steering column failure
Symptoms: the vehicle deviates from the straight road, the steering wheel becomes heavier and heavier, and the random travel schedule increases Problems such as excessive steering, excessive steering or insufficient steering, steering vibration, and abnormal steering noise.
Treatment method: The damaged steering column can be repaired. If the steering column breaks, it will affect the driving safety of the vehicle. It should be inspected and repaired immediately, and replaced if necessary. 【Details>>】
Steering shaft failure
Performance:
1. Turn the steering wheel abnormally It is loose or heavy and difficult, the direction is unstable when driving, the vehicle goes off track, the free travel of the steering wheel becomes larger, and it becomes difficult to return the steering wheel.
2. When turning the steering wheel on the spot or at low speed, there will be an abnormal “squeaking” sound. In severe cases, the steering wheel can be obviously vibrated.
3. The tire noise becomes obviously louder when driving. In severe cases, there will be a “buzz…buzz” sound. When driving on bumpy roads or passing speed bumps, a “dong…dong” sound will be heard.
Causes and solutions:
1. Check whether the noise is caused by poor working of the torque converter or ATF oil pump. During inspection, you can judge by temporarily removing the power steering oil pump drive belt. If the noise is still there after removing the belt, it indicates the torque converter or fault. If the noise is still there after removing the belt, it means the ATF oil pump is not working properly.
2. Detect whether the oil (high-pressure) hose collides with other parts. If so, re-fix the oil outlet hose.
3. Check whether the steering shaft universal joint, tie rod or ball pin is loose. Tighten loose fasteners or replace defective parts as necessary.
4. Check whether the steering shaft swings significantly. If so, replace the steering shaft assembly.
5. Check whether the adjustment of the rack guide screw plug is accurate and make adjustments as appropriate.
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