Nissan Teana 20,000 km maintenance fee
Check the engine idle jitter. If so, I suggest you clean the throttle again.
In addition to replacing the oil filter, it is necessary to carry out routine inspection on the vehicle, including lights, chassis, brakes, tires, etc. Check whether the tires are abnormally worn, and if so, conduct four-wheel alignment.
After checking the tire pressure, you can clean the engine lubrication system, disassemble and clean the throttle valve, and clean the air inlet and fuel injector.
Cleaning the lubrication system can effectively remove oil oxides in the lubrication system. The piston is driven by mixed gas explosion, so there is high temperature and high pressure around the piston ring on the piston. A small amount of gas will escape from the piston ring and enter the crankcase. The engine oil in the crankcase will be oxidized, and a large number of viscous substances will adhere to the oil circuit after oxidation, which will affect the lubrication effect. Cleaning the lubrication system can remove these oxides.
Throttle is an important part to control idle speed and constant speed cruise and provide vehicle working conditions for engine computer. However, in use, carbon deposition and dirt will be produced around the throttle to varying degrees, which will affect the intake volume of the throttle. If the throttle is too dirty, the fault light will light up and eventually the car will not go. Therefore, it is recommended that the owner clean it once every 20,000 kilometers.
Due to insufficient combustion in use, the fuel injector will also produce carbon deposit. The area of the injection hole on the nozzle is smaller than the cross-sectional area of the hair. Too much carbon deposit, abnormal fuel injection and reduced power. If it is serious, the engine will be out of the cylinder. The fault light is on. Therefore, it is recommended to clean the injector and add fuel cleaning protective agent.
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