What are the symptoms of a faulty wastegate vacuum tank?
2 Answers
The symptoms of a faulty wastegate vacuum tank include incomplete closure of the exhaust gas recirculation valve, flashing malfunction indicator light, engine shaking, unstable idle, engine RPM increasing instead of decreasing, leading to the emission of large amounts of blue smoke, and other phenomena. Exhaust Valve: Also known as the oil-gas separator or pressure control valve, the engine exhaust valve is primarily responsible for controlling the exhaust gases produced during vehicle combustion. Working Principle of the Exhaust Valve: The working principle of the engine exhaust valve involves high-pressure gas from the compressor entering the exhaust valve and then the guide vanes within the valve, where it flows in a spiral pattern. Through centrifugal force and gravity, the lubricating oil is separated from the working gas and flows down along the inner wall of the cylinder.
After driving for so many years, the symptoms of a failed wastegate vacuum canister are quite noticeable: after starting, the engine makes a hissing or air leakage sound, especially louder when accelerating; the car's power delivery becomes uneven, sometimes the turbo response slows down, stepping on the gas pedal feels weak, and the power output fluctuates, as if the boost system is out of control; more troublesome is that it may be accompanied by increased fuel consumption or the engine warning light turning on, overall driving experience deteriorates; not addressing this issue can also damage turbo components, I recommend regularly checking the sealing of vacuum lines to prevent it.
