What should I do if JAC He Yue rs idling is unstable?

1 replacing the engine filter air filter aims to protect the engine and reduce wear. Generally, it should be replaced once every 0/0000 km or so. If it is not replaced in time, the engine will shake due to insufficient air intake, which can be solved by replacing the filter element. Replacing the high-resistance high-voltage line with an open circuit means that the conductor core of the high-voltage line is open, which will affect the ignition and lead to engine jitter. You can use a multimeter to measure the resistance, and change it to a resistance that is obviously several times larger. 3 Replace the spark plug for long service life. After exceeding 30,000-40,000 kilometers, the ignition efficiency is obviously reduced, which may affect the ignition. This is the most common fault. Just replace all spark plugs. 4 Replace the thermostat. If the idle speed is too low, the jitter is beyond the control of the computer. Some cars have adjusting screws on the accelerator to adjust the idle speed, while others don't. This kind of car can check the idle valve, throttle, air flowmeter, vacuum sensor and adjust the ignition time (car with distributor) to improve the idle speed. Low water temperature can also lead to low idle speed, so check and replace the thermostat. 5 Cleaning the throttle inlet Throttle, idle valve and air inlet will be blocked by carbon deposit and oil dirt after a period of use, which will affect the idling stability and cause jitter. It can be solved by checking and cleaning the above parts with cleaning agent without disassembly and cleaning.