【Car owner's car knowledge】Usually, everyone may encounter various kinds of faults in their vehicles, among which the idling jitter is serious, the engine fails to fire, and the brake disc is abnormally worn. What should I do if I encounter these problems? Today we will troubleshoot for you.
What is the reason for the serious idle jitter?
Problem description 1:The engine of the car has been overhauled, and now it is found that the idling speed of the car is shaking, and the throttle valve has also been cleaned, but the idling speed is more serious when refueling, what is the reason?
reply:First, after cleaning and adjusting the idle speed control system, confirm that the idle speed control system is not faulty, such as the working performance of the idle speed motor, whether the air intake system is leaking, etc. A cylinder whose idle speed value is jittery can be used for fault source analysis and maintenance.
It is recommended to take the car to a repair shop for the above inspection and maintenance.
What is the reason for the engine not firing?
Problem description 2:The car sometimes fails to catch fire, and even extinguishes the fire while driving. It takes about two minutes for the car to catch fire. What is the reason?
reply:The phenomenon that the
【Car owner's car knowledge】Usually, everyone may encounter various kinds of faults in their vehicles, among which the idling jitter is serious, the engine fails to fire, and the brake disc is abnormally worn. What should I do if I encounter these problems? Today we will troubleshoot for you.
What is the reason for the serious idle jitter?
Problem description 1:The engine of the car has been overhauled, and now it is found that the idling speed of the car is shaking, and the throttle valve has also been cleaned, but the idling speed is more serious when refueling, what is the reason?
reply:First, after cleaning and adjusting the idle speed control system, confirm that the idle speed control system is not faulty, such as the working performance of the idle speed motor, whether the air intake system is leaking, etc. A cylinder whose idle speed value is jittery can be used for fault source analysis and maintenance.
It is recommended to take the car to a repair shop for the above inspection and maintenance.
What is the reason for the engine not firing?
Problem description 2:The car sometimes fails to catch fire, and even extinguishes the fire while driving. It takes about two minutes for the car to catch fire. What is the reason?
reply:The phenomenon that the engine suddenly shuts off automatically and cannot be started during operation is generally caused by the sudden oil cut off or sudden fire off of the engine. In most cases, it is caused by the unstable working performance of the engine control circuit or related control components. caused.
It is also possible that the related lines are not in contact with each other. The specific reason must be based on the actual situation. The vehicle must be tested on-site.
What should I do if the rear brake disc is abnormally worn?
Problem description 3:There are two obvious dents on the rear brake disc of the car. In addition, there will be abnormal noise. How to deal with this abnormal wear?
reply:For the wear of the rear brake disc, it may be related to the material of the brake pads. You can remove the brake pads and polish the hard points. As for the abnormal noise, you can remove the brake pads and chamfer the brake pads. Effectively reduce the abnormal noise when braking. All vehicles will have this problem. This abnormal noise will not affect the normal use of the braking system, and you can do nothing to deal with it.
How to deal with abnormal noise in the engine compartment?
Problem description 4:In the past few days, when driving in the morning, I found that there was abnormal noise in the engine compartment of the car. The noise is the kind of dry grinding sound. How should I deal with this?
reply:This may be because the generator belt is too tight or the bearing of the water pump pulley or the generator pulley is poorly lubricated, and the pressure is too high during cold start, resulting in abnormal noise. There may also be an abnormal noise caused by a slight slippage of the belt. If the idle speed of the engine is low, coupled with the improper installation position of the engine claw, when the engine shakes, the friction between the claw and the bracket on the body will also cause abnormal noise.
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