LEMON Manuals: Even more car manuals for everyone: 1960-2025
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 (3.0L)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal & Installation (3.0L)

  1. Remove air intake throttle body. See AIR INTAKE THROTTLE BODY. Depressurize fuel system. Relief valve is located on fuel supply line. Disconnect fuel supply and return lines. See PUSH-CONNECT FITTINGS. Disconnect wiring harness at fuel injectors.
  2. Disconnect vacuum hose from fuel pressure regulator. Remove fuel assembly manifold bolts (2 on each side). Carefully disengage fuel supply manifold from fuel injectors by lifting and gently rocking rail.
  3. Remove injectors from fuel supply manifold by using a slight twisting/pulling motion. See Fig 1 . Place removed components in a clean container to avoid dirt or other contamination.
  4. Lubricate new injector "O" rings with a light oil. DO NOT use silicone grease. Carefully install fuel supply manifold and injectors into lower manifold, one side at a time. To complete installation, reverse removal procedure.
Fig 1: 3.0L Multi-Point Fuel Injection System
G200126Courtesy of FORD MOTOR CO.