It is difficult to light a fire in hot weather.

The weather is getting hotter and hotter, and it is difficult to start the car. Especially after being exposed to the sun, the car can't strike for a long time, and it always feels that the speed can't go up. Do any car owners have the same situation? What's going on here? The following are the reasons and solutions for the difficulty in striking a fire after automobile exposure.

Carbon canister solenoid valve failure

The solenoid valve is always on, and the fuel vapor enters the air inlet through the carbon canister after the summer exposure, which leads to the rich mixture when the engine is started, and it is difficult to start the car after the exposure.

Solution: Turn off the engine, remove the connecting pipe and suck hard. The carbon tube solenoid valve can't be attracted in the normally closed state. If air can be sucked out, it is damaged and needs to be replaced.

There is air resistance.

The high temperature environment causes gasoline to evaporate, forming pressure in the oil circuit. If the pressure is greater than the oil supply pressure of the gasoline pump, the oil supply will be abnormal, which is called air resistance, which makes it difficult to start the car.

Solution: slowly open the fuel tank cover for inspection, and listen carefully for the sound of air intake or exhaust. If yes, replace the fuel tank cover.

Engine coolant temperature sensor fault.

If the coolant temperature sensor can't provide the correct temperature signal, it will also lead to difficulties in starting.

Solution: Direct replacement.

Check valve pressure relief

When the car starts normally, the oil pump will stop after a few seconds. At this time, if the check valve of the oil pump releases pressure or the oil pressure provided is too low or too high, it will make it difficult to start the car.

Solution: Connect the pressure gauge to the garage for testing. If a little pressure relief is detected, it is not a big problem and there is no need to replace it. If the pressure relief is too large, it is recommended to replace the original oil pump.

Nozzle dripping

When fuel injection stops, fuel supply is inaccurate and fuel particles accumulate. After the injection at the front end of the needle valve of the injector, the fuel in the cylinder can not be completely burned, which leads to the difficulty in starting the automobile or excessive exhaust gas.

Solution: Remove the oil nozzle and use it to detect whether there is oil dripping. If there is any problem, replace the nozzle.