How to disassemble and assemble the black pipe on Buick Angkewei valve cover

You can go to the repair shop to change it. The black pipe of Buick valve cover is an exhaust pipe, which needs to be disassembled in a professional repair shop. Exhaust gas enters the throttle valve for the second time through the exhaust pipe to participate in combustion. If the exhaust pipe is blocked, the engine pressure will increase and the oil will burn easily. The symptoms of valve damage are: 1, which affects the working efficiency of the engine and reduces the power of the car; 2. Make abnormal sounds. The idle speed of the engine is unstable during operation, or the acceleration becomes worse. Overtaking performance is also declining. In severe cases, the engine will be difficult to start and will not catch fire. Cars also leak air and deposit carbon. The valve is broken and the cylinder is unstable. Unstable cylinder will lead to engine jitter, engine power loss and exhaust pipe blockage. In severe cases, the tail gas will emit black smoke. The octane number of oil is very low. Second, the oil viscosity is low. Need to go to 4S shop or repair shop for decomposition and replacement.