What are the symptoms of valve chamber air leakage?

[OGianna]

Valve chamber air leakage mainly exhibits the following symptoms: 1. The vehicle will be difficult to start or may not start at all. Even if it starts with difficulty, it will idle unstably and easily stall, with insufficient power. 2. When the intake valve leaks, the carburetor will backfire. 3. When the exhaust valve leaks, the exhaust pipe will produce popping sounds. Symptoms of intake valve leakage: 1. It will cause insufficient power and slow acceleration; 2. The engine sound will be scattered, and the engine will heat up very quickly; 3. Fuel consumption will increase significantly, and the carburetor will experience backfiring; 4. It will be very difficult to start a hot engine, requiring much more throttle to start. Symptoms of exhaust valve leakage: 1. The sound will be muffled; 2. Starting a cold engine will be extremely difficult; 3. The exhaust pipe temperature will be very high; 4. Driving will feel jerky with strong vibrations and high fuel consumption.