Will a faulty exhaust valve cause oil burning?
2 Answers
Damage to the exhaust valve can lead to oil burning and may also cause engine idle shaking or stalling. Here are the reasons for exhaust valve failure: 1. Poor quality of the exhaust valve itself; 2. Improper maintenance, low-quality fuel, or prolonged use leading to aging of the exhaust valve. Additional information: The exhaust valve, also known as the pressure control valve, is installed between the compressor outlet and the condenser inlet to improve heat transfer efficiency within the condenser and evaporator. The exhaust valve recirculates exhaust gases back into the cylinder for combustion, effectively lowering the internal temperature of the cylinder, which helps suppress the formation of NOX and reduces NOX emissions in the exhaust.
A faulty PCV (Positive Crankcase Ventilation) valve can indeed indirectly cause oil burning issues. I remember this happening with my old car. The PCV valve is designed to regulate exhaust gas recirculation into the engine to help reduce emissions. If it gets stuck or leaks, the engine will ingest more exhaust gases, leading to incomplete combustion and unstable temperatures. This problem accelerates piston ring wear or increases carbon buildup, causing engine oil to be drawn into the combustion chamber and burned faster. You'll notice blue smoke from the exhaust and rapidly dropping oil levels on the dipstick, along with reduced power. When I delayed repairs for a few days, my car's fuel consumption skyrocketed and nearly caused engine damage. Don't wait for strange noises or warning lights - have a professional mechanic replace the valve immediately. It's an inexpensive fix that can prevent costly overhauls. Regular inspection of the exhaust system helps prevent such chain reactions and ensures worry-free driving.
