Ford Expedition stalled while driving, cranks strong but won't start, suspected gas pump relay issue on Ford Expedition

Some Ford Expedition owners report experiencing stalling while driving, which they suspect may be related to a failing fuel pump relay. These owners note that a malfunctioning fuel pump relay can lead to unpredictable pump operation, resulting in rough running and starting issues. In particular, if the relay fails to activate, there may be no voltage at the fuel pump harness, preventing the engine from starting. Many report that one of the first signs of a faulty fuel pump relay is an unexpected engine stall. Additionally, the relay's failure can disrupt the fuel pump's power and affect fuel delivery, further complicating the vehicle's ability to start and run smoothly. It is recommended that owners inspect the fuel pump relay and its connections to ensure proper function, and consider replacing it if necessary to resolve these starting problems.