Symptom 1: After only 1,000 kilometers, I found that the acceleration is very slow, especially when waiting for the red light. Accelerate up to 2000 rpm to have a sense of movement.
Reason: The slow acceleration may be caused by the blockage of the fuel injection head. Accelerating to 2000 rpm can feel dynamic. 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 head 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 jumps when viewed from the side, and the front wheel slips sideways in the car.
reasons 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 not to kill the direction as much as possible.
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 noises, especially when starting at the 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, so that the fuel economy and noise are small. If you need to accelerate quickly, you should follow the instructions, 2000 upshift, 1200 downshift. Generally, it is best to keep around 1200 to 1400 revolutions in normal driving. Of course, increase to 5th gear after getting on the high speed. When driving on a flat road or downhill, you can jump 1 to 2 gears up and down at 2000 when you turn in gear, depending on your perception 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.
Symptom 5: The engine vibrates greatly when driving
Reason: It is possible 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 it is strictly forbidden to use No. 90 gasoline when choosing gasoline, because using gasoline that does not meet the requirements will cause engine damage and abnormal noise in the cylinder.
How to guaranteeBraking System
carA good braking system is very important for driving safety. If the car's braking system cannot be guaranteed to operate normally, danger will always threaten you. In the braking system,Brake padsIs the most frequently replaced part.brakeMake a concentrated answer to the questions of the film.
Question: The wear of the left and right brake pads is different. How to check?
Answer: This situation should be caused by insufficient unilateral braking or unilateral drag. If the two brake pads of the same wheel wear unevenly, check whether the brake pad materials are the same, whether the brake wheel cylinder is in good return, and whether the wheel cylinder bracket is deformed.If there is uneven wear between the left and right wheels, check the left and right sides of the coaxial line.BrakeWhether the braking time is consistent, whether the front suspension is deformed, whether the body floor of the front suspension is deformed, whether the elastic force of the front suspension coil spring is reduced, etc.
Q: How long is the replacement period of brake pads?
Answer: Usually we will use the brake warning light on the dashboard as the basis for judging the replacement of brake pads, but this is the final bottom line. Although all vehicles have this kind of warning system, some of them directly sense the thickness of the brake pads, and some have the brake pads have been completely worn out, and the warning lights will light up only when the brake fluid drops extremely. Therefore, every time you enter the factory for maintenance, you must check whether the brake pads can be used, and replace the brake pads that are close to the end of their life, instead of just trusting the warning lights.
Question: How do I replace the brake pads by myself?
Answer: The replacement method is as follows: pry offHubcaps, Remove the wheel, move the wedge adjustment block upward through the wheel screw hole to relax the brake shoe, then remove the spring, automatic gap adjustment rod, etc., during installation, there should be no oil stains on the brake drum and friction lining, and the gap will be automatically adjusted The roller of the adjusting rod is screwed to the limit, the right brake adjusting rod is a right-hand thread, and the left brake adjusting rod is a left-hand thread. The hand brake cable is installed, the brake shoe and the tension spring below, the gap adjustment rod, and the shoe are installed. The support spring on the plate and the return spring on the upper part of the shoe, then rotate the roller, install the brake drum, and lock the nut, and install the protective cover and the wheel.
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