When the weather is cold, the steering wheel of the car feels heavy. What happened?

The reason is that the viscosity of steering oil is too high. In winter, the viscosity of steering oil becomes larger, which makes the booster pump unable to absorb enough oil, resulting in heavy steering wheel. In addition, in winter, due to the high viscosity of engine oil, the oil return pressure will be slightly higher, and the steering wheel will be heavy due to oil leakage from the steering gear upper cover.

1, tire pressure is too low. This situation can return to normal as long as it is supplemented to the standard tire pressure.

2. the speed is slow. In this case, when driving, speeding up can alleviate the sinking problem of the machine in the power-assisted direction.

3. The car battery is dead, which means charging the battery.

4. The fuse is blown, and the line is open or short-circuited to the ground. In this case, repair the fuse.

5. If the steering wheel is rotated repeatedly at the original position or at a low speed, the load on the power-assisted system is extremely great, and it is easy to protect the steering gear at high temperature, resulting in heavy steering and recovery after heat dissipation. This is a normal phenomenon and requires no maintenance.

Precautions for the use of steering gear should be overhauled every 3 years or about 60 thousand kilometers. The steering pump is not damaged and will not leak oil, but it is still necessary to check the joints and connecting parts in the power system and steering system to see if there is oil leakage.

Solution of steering wheel overweight in cold weather

1. Change the booster oil regularly. With the long-term use of the car, the booster oil will inevitably become dirty and unclean. The booster oil should be replaced regularly to ensure the normal running of the car.

2. Ensure that the tire pressure and vehicle battery are sufficient. After using the car for a long time, it is inevitable that the tire pressure is insufficient, so it should be replenished in time. In winter, the battery capacity will also drop rapidly, so pay attention to the battery capacity and charge it in time. Prevent the steering wheel from becoming heavy in cold weather.

3. Check the pressurization system. At present, most auto parts run by electricity, so when the steering wheel doesn't work well, it is necessary to check it in time to see if there is anything wrong with the power-assisted system. If problems are found, they should be repaired in a professional maintenance unit in time.