What are the common reasons why cars can't start?

1, gasoline flow is blocked

The performance feature is that there is no oil pressure in the engine oil supply pipe, which often happens in the morning when the temperature is particularly low, and is caused by the long-term unclean fuel pipeline. When the temperature is extremely low, water and sundries are mixed together, resulting in the fuel pipeline being blocked and unable to start.

2. The ignition system is in poor working condition.

Especially in cold weather, due to the low intake temperature, fuel atomization in the cylinder is not good. If the ignition energy is insufficient, the cylinder will be flooded, that is, too much fuel will accumulate in the cylinder and exceed the ignition limit concentration, so the car cannot be started.

3. Valve gluing

When using a car in winter, especially after using unclean gasoline, the gum in gasoline will not burn, but will accumulate near the intake and exhaust valves and combustion chambers, which will lead to difficulties in starting and even failure to catch fire in the cold morning.

Extended data:

Solution skills:

1, put the car in a warm environment, and the car will start soon; Or completely solve it by cleaning the oil circuit.

2. Screw out the spark plug, wipe off the oil stain between the electrodes, and start the car after reassembly. The thorough way is to check the ignition system and eliminate the reasons of low ignition energy such as spark plug electrode gap, ignition coil energy and high voltage line state.

3, you can drop some engine oil into the combustion chamber, which can generally be started. After starting, go to the service station for disassembly-free cleaning, and if it is serious, remove the cylinder head for cleaning.

References:

People's Network-What if the car doesn't catch fire in winter?