The engine shakes when Buick Hideo is idling (the real reason for Buick Hideo's idling jitter is here).

There are many reasons for engine jitter, such as excessive carbon deposition in the intake system of throttle valve and idle valve, poor atomization of nozzle and poor working performance of ignition system. It is recommended to repair it as soon as possible.

The general reason for idling jitter of Buick Hideo engine is that the throttle valve is too dirty or the fuel injector has too much carbon deposit. In addition, check the working conditions of spark plugs, high-voltage lines and ignition coils. Poor ignition system and poor ignition of spark plugs can also lead to such failures. The solution is to check whether there is too much carbon in the spark plug and replace the spark plug. For example, the engine carbon deposit has been removed, the throttle valve has been cleaned, and the oil pad and spark plug have been replaced. Body vibration is still found when idling. It is recommended to go to 4S shop to check whether the fuel supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal, or the intake pressure sensor has wrong value and works badly, it will cause vibration of the car body.

In addition, the idle speed value of Buick Hideo engine has been set in the computer. When the number of revolutions is low to a certain range, the on-board computer will automatically adjust. If the idle speed is too low, it is beyond the control range 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 valve, air flowmeter and vacuum sensor, and adjust the ignition time (car with distributor) to improve the idle speed. Low idle speed can also occur when the water temperature is low. Check and replace the thermostat.

Million car purchase subsidy