How to judge that the waste gas valve is broken, and what is the impact of a broken waste gas valve?

The waste gas valve is also called the oil and gas separator and pressure control valve. It is installed between the compressor outlet and the condenser inlet to separate the oil and gas to improve the heat transfer effect in the condenser and evaporator. Its function is to make automobile exhaust gas recirculate into the cylinder for combustion, and this small part of the exhaust gas reduces the temperature of the cylinder during combustion, and also reduces the NOX content in the exhaust gas.

When the throttle reaches a certain degree of opening, the waste gas valve will be opened to connect the exhaust gas in the cylinder belly to the intake pipe, and then enter the cylinder to circulate and burn, playing the role of completely burning the exhaust gas to purify the air. However, the exhaust valve will inevitably fail or be damaged if the car is used for a long time. So, what is the impact if the car's exhaust valve is broken? How to tell if the waste gas valve is broken? Let's learn about it together.

Causes of waste valve damage

1. The quality of the waste valve itself;

2. Improper maintenance;

3. Fuel quality problems;

4. The waste gas valve is aging.

Damage to waste gas valve

1. After the waste gas valve is damaged, it will not be possible to control the exhaust gas circulation. Excessive exhaust gas recirculation will affect the concentration of the mixed gas. The car may experience difficulties in starting, engine jitter, unstable idle speed, and weak acceleration. Engine performance;

2. After the exhaust valve is damaged, it will cause the car to burn engine oil and blue smoke from the exhaust pipe. The waste gas valve plays the role of oil and gas separation. When it works normally, it only sucks exhaust gas and does not suck oil. When the waste gas valve is damaged, it will lose the oil and gas separation function. It may suck oil while inhaling, so that the oil enters the combustion chamber. The phenomenon of burning engine oil and blue smoke is produced.