What are the symptoms of a faulty car exhaust valve tube?
2 Answers
The symptoms of a faulty car exhaust valve tube are: 1. Severe suction when opening the oil filler cap; 2. Sudden emission of large amounts of exhaust smoke—white at idle and blue during rapid acceleration or heavy throttle; 3. Accompanied by a strong burning rubber odor; 4. Causes engine idle vibration. The exhaust valve, also known as the oil-gas separator or pressure control valve, is installed between the compressor outlet and the condenser inlet. It improves heat transfer efficiency in the condenser and evaporator by separating oil and gas. If the exhaust valve is damaged, it needs to be inspected or replaced at a repair shop. The reasons for exhaust valve damage include: 1. Poor quality of the exhaust valve; 2. Improper maintenance of the exhaust valve; 3. Aging of the exhaust valve; 4. Poor fuel quality.
I've been driving for over a decade and know that a failed PCV valve hose is quite common. When it goes bad, the car feels sluggish, especially when climbing hills - like it hasn't had enough to eat. The idle becomes unstable, with the engine shaking back and forth, which really gets on my nerves. Fuel consumption spikes noticeably, with a full tank lasting much shorter distances. Sometimes the warning light on the dashboard illuminates, indicating excessive emissions. Last time I noticed these symptoms, took it to the shop, and sure enough there was a crack in the hose. After repair, everything returned to normal. Fix it early for peace of mind, otherwise it might accelerate wear on other components.
