My car is a six year old large truck, and the sudden direction cannot automatically return to the ri

The steering wheel is killed and does not return, this is caused by the damage of the power assist system, which is generally caused by the leakage or death of the power assist oil, and it is specifically checked and repaired.

What needs to be corrected is that the direction of the vehicle can be corrected mainly depends on the direction booster pump, and the direction can be corrected during the driving process of the vehicle depends on the influence of the caster of the kingpin and the caster angle of the kingpin. Directional assistance only plays an auxiliary role when playing the direction, making it easier to play the direction. Therefore, when you can't return to the right, the first step to check is whether there is a problem with the four-wheel alignment, and then the direction system, if there is an abnormal sound, you can check the ball head inside and outside the tie rod of the lower steering machine, the rack and pinion of the steering machine, and whether the screws fixing the steering machine under the chassis are loose and problematic.

Specifically, to know what kind of car you are, I can judge in more detail, because some cars have some congenital characteristics.

Summary. Hello! We will be happy to answer your questions.

This can happen for several reasons:1Faulty accelerator pedal:

Throttle line failure: The throttle line may be open or shorted, preventing the throttle signal from being transmitted to the engine control unit (ECU). Check that the throttle line is in good condition and repair or replace the damaged line.

Check if the ECU is working properly and repair or replace it.

Hello! We will be happy to answer your questions. This can happen for several reasons:

Check the accelerator pedal for any stuck or damaged objects, and if so, need to be repaired or replaced. 2.Throttle line failure:

The throttle line may be open or shorted, preventing the throttle signal from being transmitted to the engine control unit (ECU). Check whether the throttle line is in good condition, and repair or replace the damaged Muqingcong line. 3.

Engine Control Unit (ECU) Failure: The ECU may malfunction, resulting in an inability to receive or process throttle signals. Check if the ECU is working properly and repair or replace it.

4.Throttle Actuator Failure: The throttle actuator may malfunction and cannot open or close the throttle properly.

Check that the throttle actuator is working properly and if there is a problem, it needs to be repaired or replaced. 5.Other electronic control system failures:

Other electronic control systems of the vehicle, such as sensors, wiring harnesses, etc., may also cause the fuel pedal to be unresponsive. Check that other electronic control systems are working properly and repair or replace them. Due to the complexity of the vehicle issue, it is recommended that you take your vehicle to a professional car repair shop for inspection and repair.

See what's wrong.

Lack of power: Trucks need more power to propel when they are heavy, and if the engine does not output enough power, it will cause the steering wheel to become heavy or even unable to turn. This could be due to engine failure, fuel** issues, or drivetrain issues.

2.Power steering system failure: Modern vans are often equipped with power steering power steering systems that use hydraulic or electric power to sharpen the rotational power of the steering wheel.

If the system fails, the steering wheel is heavy or cannot be turned. 3.Tire Problems:

If the tires of a truck are not under air pressure or the tires are severely worn, it will increase the driving resistance and cause the steering wheel to become heavy. 4.Vehicle suspension system issues:

If the truck's suspension system is faulty or the suspension parts are damaged, the steering wheel may be heavy or unable to turn.

In order to determine the problem of Gu's examination, it is recommended that you send the truck to a professional car repair shop for inspection and repair as soon as possible. They will find out the root cause of the problem by inspecting the engine, fuel system, booster system, tires and suspension system, etc., and carry out maintenance and repair accordingly.

When a truck is heavy, it can't move in the same direction, usually due to a malfunction of the steering system or an overload on the vehicle. First of all, you can check whether the steering pump, steering machine and steering tie rod are normal, and if the steering system fails, it needs to be repaired or replaced in time. Secondly, the load beam of the rubber car vehicle can be checked, if it is overloaded or unevenly distributed, it will lead to the difficulty of vehicle steering, and it is necessary to reduce or redistribute the goods appropriately.

In addition, it is also necessary to check whether the tire pressure is normal, if the tire pressure is insufficient, it will also affect the steering performance of the vehicle. If none of the above methods can solve the problem, it is recommended to go to a professional car repair shop for inspection and repair. It is very important to ensure the normal use of the vehicle, and timely repair and maintenance can extend the service life of the car.