Tell you the solutions to common car problems[汽车维修知识]

Reason: It may be that the vehicle has higher requirements for the compression ratio of the cylinder, and when the hydraulic cylinder is often in an abnormal state, the computer on the vehicle will recognize the problem as a cylinder misfire, and then automatically cut off the fuel supply, causing the vehicle to start. Produce greater jitter.

Solution: When the car is being repaired, check the cylinder head. When the hydraulic cylinder is foundValveWhen carbon deposits are particularly serious, gasoline additives should be appropriately added. And when choosing gasoline, it is strictly forbidden to use No. 90 gasoline, because using gasoline that does not meet the requirements will cause engine damage and abnormal noise in the cylinder.
Symptom 1: After only running 1000 kilometers, I found that the acceleration is very slow, especially when waiting for the red light. Accelerating up to 2000 rpm is dynamic.

Reason: The slow acceleration may be caused by the blockage of the fuel injection head. Accelerating to 2000 rpm has a sense of movement. There may be two reasons. One is a normal upshift. It is normal to feel some speed changes when upshifting. The other may be caused by a misfire.

Solution: It is recommended to dismantle and clean the fuel injection nozzle at the repair center. When refueling, you should pay attention to choosing a fixed gas station with good fuel quality to avoid the same problem caused by poor quality fuel. For dynamic problems caused by misfire, it is best to go to a repair center for maintenance.

Symptom 2: Reversing in the direction where the cold car is killed, the front wheel is jumping from the side, and the front wheel is sliding to the side in the car.

Reason: It may beSteering rodCaused by looseness.

Solution: can shake left and rightSteering wheelCheck the middle position to determine if it is a problem with the steering tie rod. It is recommended that the direction try not to kill the direction.

Symptom 3: The Polo with manual transmission has been driving for more than 4 months, the mileage is 10,000 kilometers, and the gearbox has abnormal noise, especially when the gear is started in 1st and 2nd gears, there is friction in the gearbox when the oil is insufficient.

Reason: poor driving habits.

Solution: Generally, you should start in first gear, and you can also start in second gear when under light load or downhill. When starting in first gear, the car is in second gear when it moves. Generally, the gear is upshifted at 1500 rpm, and downshifted at lower than 800 rpm. The premise is to speed up in a hurry. This saves fuel and has low noise. If you need to accelerate quickly, you should follow the instructions, 2000 upshift, 1200 downshift. Generally, it is best to keep around 1200-1400 rpm in normal driving. Of course, increase to 5th gear after getting on high speed. When driving on flat roads or downhills, you can jump up and down to 1-2 gears at 2000 rpm, according to the feeling of the speed of the car, so as not to damage the car.

Symptom 4: After driving a certain distance and opening the door, a strong peculiar smell will come out from near the engine.

Reason: It may be caused by battery leakage, or it may beAntifreezeSmell.

Solution: battery leakage can be judged visually, check the auxiliaryWater tankWhether the liquid level is qualified. If you are still not at ease, you have to go to the repair center and ask a professional technician to help you thoroughly check it.

Related:

·Benefits of cleaning the inside of the engine
·CarIn the battery (Accumulator) Several emergency measures for failure to start due to lack of power or starting failure.
·[Picture]The working principle of the electronic control injection system (4)
·[Picture]The working principle of the electronic control injection system (3)
·[Picture]The working principle of the electronic control injection system (2)
·[Picture]Advantages and working principle of electronic control injection system (1)