What is the cause of stuffy car engine?

Common causes of insufficient power of automobile engines;

1, fuel supply system

The fuel supply system is a place where cars are prone to problems. Insufficient fuel entering the combustion chamber will lead to insufficient power, which may be caused by blockage of fuel nozzle, oil leakage from oil pipe, blockage of gasoline filter and long-term decline of gasoline pump power.

2. Air intake system?

The engine of the car needs to run. Besides fuel, air is also needed, otherwise the engine will not run smoothly. The possible reason for the lack of automobile power is that the air filter or throttle system is dirty and blocked; Intake air temperature and intake air pressure sensors are not working normally, and the air flowmeter is out of order. If there are problems with these parts, just repair or replace them in time.

3. Gasoline

If gasoline with low octane number is used, it will be stored for too long, and the octane number will be too low due to volatilization deterioration, which will easily lead to knocking and reduce engine power.

4. Carbon deposition problem

Carbon deposits in spark plugs and other parts will increase fuel consumption.

Extended data:

Pay special attention to jitter and smoke when power is cut off:

1. When the power of the vehicle is insufficient, in some cases, the body will shake or even smoke. If this happens, pay special attention. At least one cylinder of the vehicle engine may be in abnormal operation or flameout. Generally speaking, a four-cylinder engine can still run if one cylinder is not started. If it is an engine with more than four cylinders, this symptom will decrease with the increase of the number of cylinders, and it is not easy to be detected.

2. If the automobile exhaust pipe smokes abnormally, it means that there is something wrong with the combustion chamber. There may be something wrong with the ignition system or the valve. If there is black smoke, there may be something wrong with the ignition system or the air intake system. The air-fuel ratio is wrong, which leads to the over-concentrated oil and gas can not be completely burned in the combustion chamber and discharged into the exhaust pipe, resulting in tempering.

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