1. When idling, the vehicle body obviously vibrates. Observe the mouth of the exhaust pipe. There are obvious gaps in the car's exhaust flow. At the same time, the exhaust pipe shakes violently, and you can clearly hear a "whooshing" sound or thud.
2. At a low speed above 2000, the car body has obvious jitter and the acceleration is poor. When the speed is high, jitter is mainly related to ignition. the inability of the coil to operate.
3. Open the engine cover and observe the engine running. It is found that the engine has obvious vibration, which is not the vibration under normal engine operation, and the vibration amplitude is very large. Then you can start checking if there is a missing cylinder.
4. After turning off the engine, touch the insulating porcelain body ofthe spark plug cylinder by cylinder with your hands. A cylinder in a four-cylinder car is harder if the temperature is lower. means the cylinder is not working properly. You can also use a screwdriver to short the spark plug or separate cylinder line and perform a fire test if there is no obvious change in engine operation. unplugged, this proves that the cylinder is not working. A car that is missing one or two cylinders can still be started.
Detailed information:
Engine cylinder shortage refers to the situation where engine failure results in insufficient power, there will be no power and few cylinders at total do not work. A lack of cylinders in the engine will reduce the life of the lub oilrifying, prone to flash flameout, heavy fuel consumption, black smoke and weakness.
The main cause of cylinder shortage in the engine is the ignition system and the fuel injection system. If the distributor cover contacts of the ignition system are heavily corroded, flashover will occur. Most of these will occur between the corresponding pillars of the lid. The idle speed will increase and decrease significantly, the power will decrease significantly and the vehicle. I will feel... like I'm having a severe asthma attack.
The generator lacks cylinder Baidu Encyclopedia
The car forgot neutral, released the clutch and misfired. Unexpectedly, the battery also ran out and couldn't. catch fire, what is the reason?
Complete analysis of the causes of car stalling 1. Models with automatic transmission: models withAutomatic transmission will not stall easily, while manual transmission models can often stall due to poor driving skills. However, it is not excluded that. cars with automatic transmission do not stall. The main reason is the use of substandard fuel (many gas stations sell impure oil in order to make huge profits), which causes carbon buildup in the engine and stalls. 2. In addition, the main reason for new car (automatic transmission) stalling is due to insufficient driving skills. Another possibility is the problem with the car's engine or oil system, but for new cars, the problem with the engine itself is more. probably small, the main reason is the oil circuit problem. 3. Finally, for older models, the cause of stalling is not just insufficient driving skille, but also the use of inferior oil which causes carbon accumulation in the engine. Automatic Transmission Troubleshooting: PingPoints to consider while driving: 1. The stalling phenomenon of automatic transmission cars is mainly caused by the use of substandard fuel. The first is to go to a larger service station to add premium oil, such as 97 grade gasoline. Although the price is much more expensive, it can guarantee a longer service life. long life to your car and good power while driving. However, some car owners try to get cheaper and add 90° oil. Although the price is lower, problems may arise in the future. The second is to go to a large qualified service station to fill up! Actual operation: grip the steering wheel with your handleft to stabilize the steering (because there is no electric assistance, so you have to hold it firmly), brake hard with your right foot to reduce the vehicle speed as much as possible, and then quickly shift from AT to gear N (Note: change gear while driving) The ignition should be in gear N, not D/R/P, etc. Otherwise, the car will not start or the car's gearbox will be damaged), then turn the key back one click, then turn it back on, then turn the AT gear. Return to gear D for normal driving. Manual Transmission Troubleshooting: 1. For novices, stalling mid-shift is not a new topic. The main troubleshooting method is to quickly break in and improve their driving skills. 2. Use high quality, high quality and qualified fuel. 3. Thoroughly clean the oil system, including fuel injector, throttle, fuel tankt, etc. It may be that the quality of the oil you added is not up to standard and there is too much gum and grease, blocking the oil line and making the oil attack difficult. 4. The cause of the car stalling at idle is mainly due to too much dust in the air. When the engine is running, a lot of dirt is deposited on the idle motor valve core and throttle seat. When too much dirt accumulates. the engine will idle too fast. If it is low, idle stability is poor and idle stalling will occur while driving. The solution to this problem is simple: just clean the engine at idle. 5. If the oil line is smooth, which can easily cause it to burn out halfway. 6. Due to rising gas prices and the return of biking and walking to work, new cars are often parked et are not used for a long time. In fact, it is forbidden to park them for a long period of time. If the vehicle is parked for a long period of time, thorough maintenance should be carried out before reuse. Engine oil, engine filter, etc. must be replaced and the fuel, circuit, etc. must be checked if necessary. Your vehicle may have lubrication or electrical problems due to prolonged parking. In short, whether it is a new car or an old car, whether it is an automatic or manual transmission, whether you are a veteran or a novice, it is best to add a higher oil quality when refueling, even if it is more. expensive, it's worth it. This can protect your engine from carbon deposits. Additionally, regular maintenance is also crucial. Check if the oil lines and circuits are smooth.
If the battery is not powered, pThere are several possible reasons for this failure: the battery is damaged internally, making it unable to store electricity, the generator is damaged and is not producing electricity, and the battery is also damaged at the connection between the body and the starter. Where there is a virtual connection, if you have any questions about the car after answering, ask the car master. Professional technicians from 4S stores can solve the problem within 10 minutes.