What is the abnormal idling noise of Buick Hideo?

The reason for the abnormal idling noise of Buick Hideo 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 spark plug misfire 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.

How to solve the abnormal idle noise of Buick brand-new Yinglang? The general reason is that the throttle valve is too dirty or the 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 spark plug misfire 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.

If you clean up the engine carbon deposit, clean the throttle, change the oil pad and spark plug, etc. You still find the car body shaking at idle speed. 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 an incorrect value or works poorly, it will cause the body to shake.

There is no reason why Buick New Yinglang's idle speed is unstable. The reason for the high idle speed may be that if the throttle does not match after the recent cleaning, the matching of the throttle will return to normal.

When there is a problem with the idle speed of the vehicle, it depends on whether it is time to change the oil, and the oil should be changed in time, otherwise the engine will be abnormal for a long time.

When the engine water temperature is low, the air conditioner is turned on, and the engine voltage is low, ECU programming should appropriately increase the idle speed. Under this normal condition, if the engine water temperature is normal and the idle speed is high without air conditioning, it means that the system is faulty, which may be an electronic control system or a mechanical system.

In case of high idle speed caused by mechanical failure, be sure to check whether the intake pipe leaks, the vacuum tube falls off or is damaged, and the intake pipe is damaged, because the air intake of the engine is very small when idling, and if air leaks, it will cause high idle speed.

Leaking fuel injectors may lead to excessive fuel supply, resulting in higher than normal idle speed.

Buick brand-new Yinglang idle speed is low, how to idle brand-new Yinglang low. The reasons for the low idle speed of Buick brand-new Yinglang are: check whether the pipe joints and hoses of the air intake system are leaking, and whether the air filter is too dirty and blocked. Check whether the fuel pressure is too low. If the fuel pressure is too low, the fuel supply is insufficient and the idle speed is too low. Check the spark plug for dirt, cracks and wear, check whether the spark plug gap is incorrect, and whether the spark plug electrode is burned or damaged.

Check the idle valve. If the bypass in the idle valve is blocked due to excessive carbon deposition, the air intake will be reduced and the engine speed will be reduced. For electronic throttle valve without idle valve, due to carbon deposition in throttle valve, idle air intake may decrease, resulting in low idle speed. Check exhaust gas recirculation (EGR) system. If the EGR valve is opened at idle speed or the hose leaks, the exhaust gas will enter the intake manifold, which may reduce the proportion of fresh gas in the mixture and reduce the idle speed.

What should Buick Xinyinglang do if its idle speed is high? Can Buick Xinyinglang idle speed be adjusted? The reasons for Buick Xinyinglang's idle speed are as follows: The adjustment of idle speed is to adjust to normal idle speed.

If there is no matching after recently cleaning the throttle, the matching of the throttle will return to normal.

When there is a problem with the idle speed of the vehicle, it depends on whether it is time to change the oil, and the oil should be changed in time, otherwise the engine will be abnormal for a long time.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)