What are the symptoms of a bad car valve?
2 Answers
The symptoms of a bad car valve are: black smoke from the engine, air filter leaking gas, and difficulty starting. The car valve is a component of the engine, divided into intake valves and exhaust valves. The intake valve's function is to draw in the air-fuel mixture into the engine to provide power to the car, while the exhaust valve's role is to expel gasoline and engine exhaust gases. The causes of car valve damage include: 1. Valve carbon buildup: Incomplete combustion of gases and the use of low-quality fuel leading to carbon deposits; 2. Valve oil seal damage: The valve oil seal prevents engine oil from entering the exhaust pipe, avoiding abnormal oil loss; 3. Valve burning: The valve clearance becomes too small to close completely, preventing heat dissipation, and the valve gets burned by the high-temperature flames in the combustion chamber.
If the car's valves are damaged, my vehicle will noticeably experience unstable engine operation, shaking like an unruly fellow, especially at idle when the steering wheel vibrates with a buzzing sensation. Starting becomes extremely difficult, requiring repeated key turns to barely ignite, and the power drops significantly—what used to be effortless overtaking now feels sluggish, struggling to climb slopes. Fuel consumption skyrockets, the fuel gauge drops rapidly, and the wallet instantly shrinks. Additionally, a hissing air leak sound can be heard from the engine bay, like a deflating tire, and sometimes blue smoke from the exhaust indicates valve seal failure leaking oil. If left untreated, it may burn out pistons or the cylinder head, shortening the engine's overall lifespan. A single repair could cost thousands, so it's best to pay attention to abnormal sounds while driving and get an early inspection to avoid regret.
