1994 Ford Fuel Delivery Assembly Diagram - In-Tank Pump & Reservoir (Page 9A-6)

This is page 9A-6 from the 1994 Ford Powertrain Control / Emissions Diagnosis manual, covering the Fuel Delivery Systems (FDS) section. The page describes the Fuel Delivery Assembly used in Type 1 or Type 2 fuel systems, explaining that it consists of a fuel pump housed inside a reservoir attached to the pump and sender assembly. On two-tank systems there is one assembly per tank, and the sender assembly handles switching of fuel through internal valves; the assembly is serviced by replacement rather than repair. Figure 2 provides a labeled cutaway diagram of the assembly, identifying the flow-to-engine and flow-from-engine ports, reservoir, high pressure pump check valve, shuttle valve, diaphragm, venturi jet pump, pump filter screen, check valve, and venturi filter screen. A second illustration shows the top flange with the fuel return and fuel supply lines plus the electrical connector pins: sender ground, sender positive, pump positive, and pump negative. A short section on Reservoirs and Filters explains that fuel reservoirs prevent fuel flow interruptions during extreme vehicle maneuvers at low tank fill levels, and that the reservoir is in-tank, either moulded/welded into the tank or part of the Fuel Delivery Assembly.