Fuel, Cooling & Exhaust
Fuel Supply & Evaporative Control System
Equipped with Ford’s factory dual-tank fuel system, this 1994 F-150 carries a 19.0-gallon midship tank and an 18.2-gallon aft-axle tank—each with its own high-pressure in-tank Fuel Delivery Module (FDM)—feeding a 45–60 psi stainless fuel rail and six Bosch/Ford EV1 multi-port fuel injectors.
- Dual Fuel Capacity
- 19.0 gal Midship + 18.2 gal Rear (37.2 gal total)
- Pump Architecture
- Dual In-Tank Fuel Delivery Modules (FDM) · Shuttle valves
- 4.9L Fuel Rail Pressure
- 45–60 psi (vacuum-referenced diaphragm regulator)
- Port Fuel Injectors
- 6× EV1 pintle injectors (14 lb/hr) · Batch-fired banks
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Parts Catalog
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Part Assemblies in Fuel & EVAP
19-Gal Midship & 18.2-Gal Rear Fuel Tanks & FDM Pumps
Dual steel fuel tanks with in-tank high-pressure Fuel Delivery Modules that switch tanks electrically with no frame selector valve.
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Tubular EFI Fuel Rail, Couplings & Pressure Regulator
Distributes pressurized fuel across all six cylinders while maintaining a constant pressure drop across the injector nozzles.
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Multi-Port Solenoid Fuel Injector Assembly
Electromagnetic pintle valve with a 4-hole atomizing nozzle disc that meters fuel in millisecond pulses directly at the intake port.
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