What are the effects of a faulty EGR valve?
2 Answers
If the EGR valve is faulty, it will be unable to control the amount of exhaust gas recirculation, leading to issues such as engine oil burning. Here is some information about the EGR valve: 1. Hazards: Excessive exhaust gas participating in recirculation will affect the concentration of the air-fuel mixture. The car may experience difficulties starting, engine shaking, unstable idle, lack of acceleration power, and other phenomena, which can impact engine performance. 2. Faults: It affects the normal operation of the engine, especially during idling, low-speed small-load conditions, high-speed operation, rapid acceleration, rapid deceleration, and when the engine is running cold. Excessive recirculated exhaust gas can severely impact engine performance, leading to unstable idle, poor acceleration, increased fuel consumption, insufficient power, and other faults.
My car runs like a sick cow with no power, wheezing during acceleration and shaking badly at idle, especially noticeable in traffic jams. The mechanic diagnosed it as a faulty exhaust gas recirculation (EGR) valve. This component is supposed to recirculate some exhaust gases back into the engine to reduce pollution, but now it's failed, causing dirtier emissions, polluting the environment and triggering the check engine light. What's worse, fuel consumption has surged by at least 10%, significantly degrading the driving experience. I ignored this issue before, resulting in carbon buildup inside the engine that damaged the catalytic converter, doubling the repair costs – a costly lesson learned. Safety first: it's recommended to fix any symptoms promptly to avoid both vehicle damage and wallet pain.
