How to Determine if the Exhaust Gas Valve is Damaged?

[Rylee]

The methods to determine if the exhaust gas valve is damaged are: 1. Open the engine oil filler port and use a piece of paper to check for slight suction; 2. Unscrew the screw on the throttle clamp, pull out the engine oil dipstick, wipe it clean with a tissue, and set it aside; 3. Push the throttle downward to open the gap, then open the throttle; 4. Insert the engine oil dipstick into the gap below, remove it, and observe if there is engine oil on the dipstick. If there is engine oil, it indicates that the valve is damaged. The exhaust gas 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. Its function is to allow car exhaust gas to re-enter the cylinder for combustion. A small amount of exhaust gas reduces the temperature during cylinder combustion and also lowers the NOX content in the exhaust gas.