What are the symptoms of a faulty Iveco EGR valve?
2 Answers
There are symptoms such as extremely unstable idling or even stalling, flashing malfunction indicator light, failure to meet annual emission inspection standards, burning engine oil, and blue exhaust smoke. Below are the relevant details: 1. Introduction: The EGR valve is a mechatronic product installed on diesel engines to control the amount of exhaust gas recirculated back into the intake system. It is usually located on the right side of the intake manifold, near the throttle body, and connected to the exhaust manifold via a short metal pipe. 2. Function: It controls the amount of exhaust gas entering the intake manifold, allowing a certain amount of exhaust gas to flow into the intake manifold for recirculation. The EGR valve is a very important and critical component in the exhaust gas recirculation system.
That day when I was delivering goods in my Iveco, I suddenly felt something was wrong. The acceleration became sluggish, like stepping on cotton, and I clearly lacked power when going uphill. At idle, the steering wheel shook so much that I couldn't even place my phone steadily. Several times, it almost stalled before red lights, giving me cold sweats. The fuel consumption gauge was jumping faster than stock prices, burning over ten more liters of fuel than usual for just two trips. The most obvious sign was thick black smoke from the exhaust pipe—the young guy at the roadside repair shop immediately waved me off, urging me to get it fixed. Later, I found out the EGR valve was stuck. This valve controls exhaust gas recirculation, and when it fails, it's like a person gasping for air while still working desperately. If not repaired in time, it not only damages the engine but also clogs the catalytic converter completely.
