Why can't my car start in cold weather?

1. Causes of oil supply system: the low-pressure oil circuit is blocked, the pipeline is loose and leaks oil, the high-pressure oil pipe has air, the technical state of the injector is not good, and the injection timing angle is incorrect.

2. Starter causes: power failure, poor contact of electromagnetic switch, poor contact between commutator and brush of starter motor, and clutch slipping of starter transmission mechanism.

3. In general, when the automatic gear starts, P gear or N gear is the correct gear. If the owner is careless for a moment and shifts the gear to R gear or other gears, the result will not only fail to catch fire, but also cause safety hazards. At this time, it is necessary to carefully check whether the gear is correct. Once the gear is found to be wrong, it should be adjusted in time. When the gear is adjusted correctly, try to start the car again.

Matters needing attention in automobile ignition

Don't turn the key to the starting position after the car is ignited, and don't use the processed key. Otherwise, after ignition, the key cannot automatically return to the on position, and the starter continues to rotate, resulting in damage to the starter or overload and fire. The ignition switch should not be in the starting position for more than 5 seconds.

If the engine fails to start for the first time, wait at least 30 seconds before starting. When driving, don't put the ignition switch in the lock or acc position, which will lead to the failure of the steering wheel, brake and power steering system, which is very dangerous.

For the above contents, please refer to People's Daily Online-What if it is cold and doesn't catch fire? Experts suggest checking the spark plugs first.