What are the symptoms of a damaged exhaust valve in Wuling Hongguang?
2 Answers
The symptoms of a damaged exhaust valve in Wuling Hongguang are as follows: 1. Abnormal car behavior: It will be unable to control the amount of exhaust gas recirculation. Excessive exhaust gas participating in recirculation will affect the concentration of the air-fuel mixture, potentially causing difficulties in starting, engine shaking, unstable idling, weak acceleration, and other phenomena that impact engine performance. 2. Blue smoke emission: This may lead to the car burning engine oil, with blue smoke coming from the exhaust pipe. The exhaust valve functions to separate oil and gas. When working properly, it only draws in exhaust gas and not oil. If the exhaust valve is damaged, it will lose its oil-gas separation function, potentially drawing in oil along with the gas, allowing oil to enter the combustion chamber, resulting in burning engine oil and emitting blue smoke.
The most common symptom of a faulty Wuling Hongguang PCV valve is the engine shaking like it has Parkinson's disease, especially noticeable at idle. I remember last year when I was delivering goods in my Hongguang, the car suddenly shook so violently that the steering wheel wobbled. At first, I thought it was a tire issue, but later at idle, the engine RPM became unstable, with the needle fluctuating up and down, and fuel consumption increased by at least one liter compared to normal. At the same time, there was often a strong smell of gasoline or exhaust fumes inside the cabin. After inspection, it turned out to be abnormal crankcase pressure caused by a leaking PCV valve. If such issues aren’t addressed early, they can lead to increased carbon buildup and potential damage to the catalytic converter, resulting in even higher fuel consumption. It’s advisable to visit a repair shop as soon as you notice increased shaking or unusual odors to check the PCV valve and related pipes, preventing minor issues from turning into costly repairs.
