Ford OEM – 2015-2023 Mustang EcoBoost 2.3L Purge Valve

The purge valve, an integral component of the Evaporative Emission Control (EVAP) system, regulates the flow of fuel vapors from the charcoal canister to the engine intake manifold for combustion. In 2015-2023 EcoBoost Mustangs, a malfunctioning purge valve can lead to several noticeable symptoms:

1. Check Engine Light Activation: A faulty purge valve often triggers the Check Engine Light. The engine control module (ECM) monitors the valve’s performance and illuminates this warning when irregularities are detected.

2. Rough Idling or Stalling: If the purge valve is stuck open, it can create a vacuum leak, allowing excess air into the intake manifold. This imbalance can result in rough idling, hesitation, or even stalling when the vehicle is stationary.

3. Hard Starting: An open-stuck purge valve may flood the engine with fuel vapors, leading to difficulties in starting the vehicle or, in some cases, preventing it from starting altogether.

4. Poor Fuel Economy: Improper functioning of the purge valve can disrupt the air-fuel ratio, causing the engine to burn more fuel than necessary, thereby reducing fuel efficiency.

5. Unusual Gasoline Odor: A stuck-closed purge valve can cause excess fuel vapors to accumulate in the EVAP system, leading to a noticeable gasoline smell around the vehicle, especially near the fuel tank.

If you’re experiencing any of the aforementioned symptoms, it’s recommended to have your vehicle inspected by a qualified technician to diagnose and address the issue promptly.