- A clogged fuel filter can restrict the flow of gas to the engine, leading to rough idling and stalling.
2. Idle Air Control Valve (IAC)
- IAC allows air to bypass the throttle plate to regulate the engine speed.
- If the valve becomes dirty or worn, it can alter idling.
3. Vacuum Leak
- Vacuum leaks can cause unmetered air to enter the engine, upsetting the air-fuel mixture and leading to idling issues.
4. Oxygen Sensors
- Faulty oxygen sensors can alter feedback signals to the engine's computer, affecting fuel injection and potentially leading to unstable idling.
5. EGR Valve
- The Exhaust Gas Recirculation (EGR) Valve helps reduce emissions.
- If stuck, it can disrupt engine performance, including causing rough idling.
