Can You Drive with a Leaking Exhaust Valve?

[SanJude]

You cannot drive with a leaking exhaust valve. Effects of a faulty exhaust valve on the car: You cannot drive. When idling, the valve closes, and basically no exhaust gas enters to participate in combustion. During engine load operation, a small amount of exhaust gas is reintroduced into the intake manifold and participates in combustion along with the air-fuel mixture. Some cars may experience shaking. The reason for the abnormal phenomenon is: When the cylinder connected to the exhaust manifold via the exhaust gas recirculation (EGR) system is operating, the exhaust gas entering the intake manifold through the EGR valve is the combustion exhaust from that cylinder. This exhaust dilutes the air-fuel mixture under idle conditions, causing all cylinders of the engine to operate abnormally. However, if the high-voltage wire of the cylinder connected to the exhaust manifold via the EGR system is disconnected, that cylinder will not ignite. In this case, the unburned new air-fuel mixture from that cylinder enters the intake manifold through the EGR valve, significantly improving the mixture quality in the other three cylinders. As a result, the engine's idle speed naturally increases instead of decreasing. Exhaust Valve: Also known as an oil separator or pressure control valve. Installed between the compressor outlet and the condenser inlet, it improves heat transfer efficiency in the condenser and evaporator through separation.