What is the abnormal start of BYD Song pro?

The idle speed of Pacific Auto Network is normally around 1000 rpm. If the idle speed remains above 1300 rpm for a long time, it may be caused by the stuck idle speed control valve, engine water temperature sensor failure, engine computer failure, improper idle speed adjustment, throttle failure, air leakage in the intake pipe, etc.

There are many possibilities for abnormal noise of BYD Song engine. Most people also judge that it is abnormal noise in the engine compartment according to the sound source, usually the harsh sound of metal or whistle.

Solution: The abnormal sound of the engine indicates that the technical state of a certain mechanism of the engine has changed. The main reason is that some parts are worn or even improperly adjusted. Some abnormal sounds can indicate that the engine may be accidentally damaged, so when the engine has abnormal sounds, it should be repaired in time to prevent the fault from expanding. Need to be reminded that if the engine is abnormal, most owners can't solve it by themselves, so it's best to send it to the factory for maintenance.

BYD Song engine maintenance: 1, idle for a while when the cold car starts. Engine wear during cold start accounts for about half of the total wear. Normal idle preheating can reduce this wear and prolong the service life of the engine. At low temperature, metals will show low elasticity and wear resistance; Only at the working temperature can the engine reach the normal fit clearance and keep the best working condition. 2. The engine fuel system should be cleaned and maintained when it runs normally 10000 km. 3. Cleaning and maintenance of engine lubrication system. Pour the cleaning agent into the crankcase, idle for 5 to 10 minutes, and then drain the old engine oil. At this time, the sludge, oil dirt and carbon deposit in the lubrication system will be fully decomposed and discharged with the old oil, but it should be noted that the oil filter element must be replaced at the same time.

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