What causes the hissing sound near the intake pipe of the Besturn X80?
1 Answers
The hissing sound near the intake pipe of the Besturn X80 is caused by an air leak in the intake pipe. Below are specific details about the manifestations of an intake pipe leak: Engine power loss: Since the air entering the engine through cracks in the intake pipe bypasses the air flow sensor, this portion of air dilutes the combustible air-fuel mixture in the engine cylinders, leading to symptoms of engine power loss. Poor wiring includes substandard alloy wires and inadequate insulation on the outer layer of the wires. The pulse current IN through the high-voltage wire weakens due to poor conductivity, which also results in incomplete or slow combustion of the air-fuel mixture. Increased nitrogen oxide emissions: Since nitrogen oxides in vehicle exhaust are formed in high-temperature, oxygen-rich environments, an overly lean air-fuel mixture further promotes the generation of nitrogen oxides, thereby increasing the emission of vehicle exhaust pollutants. Starting difficulties: During startup, the engine requires a higher concentration of the air-fuel mixture. The lean mixture caused by an intake pipe leak leads to difficulties in starting the engine. Symptoms include the starter suddenly losing power during startup, accompanied by a burning rubber smell or smoke emanating from the battery area, often due to poor contact and overheating at the terminal posts or clamps.
