Ford Expedition rough idle and stalling at stops despite fuel pump and battery replacement on Ford Expedition

Some Ford Expedition owners report experiencing rough idle and stalling issues even after replacing the fuel pump and battery. These problems may be attributed to engine misfiring, which occurs when there is an inadequate supply of air, fuel, or spark for ignition. Additionally, an imbalanced air/fuel mixture due to faulty sensors or vacuum leaks can lead to stalling. Some owners also find that fuel system deposits, particularly from gasoline, contribute to drivability problems like rough idling and poor performance. To effectively address these concerns, it is advisable for owners to consult with a mechanic or conduct further diagnostics based on these potential causes.