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Home >> Ford >> 1990 >> Pickup F150, 2D Pickup, 5.0 N, RWD, Standard, M5OD-R2 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (Gasoline) >> Fuel Supply Manifold Assembly >> Removal & Installation (2.3L)
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Removal & Installation (2.3L)

  1. Depressurize fuel system. Relief valve is located in upper right hand corner of engine compartment on fuel supply line. Disconnect fuel supply and return lines. See PUSH-CONNECT FITTINGS.
  2. Disconnect wiring harness from injectors. Remove fuel supply manifold retaining bolts. Carefully disengage manifold and fuel injectors from engine. Remove manifold and injectors. See Fig 1
  3. To install, lubricate new "O" rings with a light oil and install 2 on each injector (one per injector if injectors were not removed from fuel supply manifold). DO NOT use silicone grease.
  4. Install fuel injector supply manifold and injectors in intake manifold, ensuring injectors are seated. Secure fuel manifold assembly with retaining bolts. Connect injector wiring harness.
Fig 1: 2.3L Multi-Point Fuel Injection System
G113232Courtesy of FORD MOTOR CO.