What are the symptoms of a faulty exhaust valve in a car?
1 Answers
The symptoms of a faulty exhaust valve in a car are: 1. Difficulty starting the engine and weak acceleration; 2. Failing emission tests during annual inspections; 3. Black smoke coming from the vehicle's exhaust pipe; 4. Unstable idle or stalling at idle; 5. Flashing check engine light; 6. Burning of engine oil; 7. Increased fuel consumption. The reasons for a faulty exhaust valve are: 1. Quality issues with the exhaust gas recirculation system itself; 2. Improper maintenance; 3. Poor fuel quality; 4. Aging of the exhaust valve. The function of the exhaust valve is to appropriately reduce fuel consumption, improve engine efficiency, lower exhaust temperature, and decrease the formation of nitrogen oxide compounds and carbon monoxide.