Part Type: HVAC Pressure Switch. 2003 Ford E-350 Club Wagon. 2004 Ford E-350 Club Wagon Engine: 5.4L V8 CNG SOHC Naturally Aspirated; EngineVIN: M; FuelSystem: Electronic;. 2004 Ford E-350 Club Wagon Engine: 5.4L V8 GAS SOHC Naturally Aspirated; EngineVIN: L; FuelSystem: Electronic;.