2003 Subaru Forester X, AutomaticFACTORY OEM SERVICE PROCEDURE

Intake Manifold: Assembly

  1. Install the fuel pipe assembly and pressure regulator, etc. to the intake manifold.
  2. Tighten the bolt which installs the fuel pipes on the intake manifold.

    Tightening torque: 

    1. 5.0 N.m (0.51 kgf-m, 3.7 ft-lb) 
    Fig 1: Installing Fuel Pipe Assembly & Pressure Regulator, Etc. To Intake Manifold By Tightening Bolt
    G02945189Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the right side fuel hose to the injector pipe, and tighten the clamp screw.
    Fig 2: Connecting Right Side Fuel Hose To Injector Pipe
    G02945190Courtesy of SUBARU OF AMERICA, INC.
  4. Install the fuel injector pipe.
    Fig 3: Installing Fuel Injector Pipe
    G02945191Courtesy of SUBARU OF AMERICA, INC.
  5. Connect the left side fuel hose to the injector pipe, and tighten the clamp screw.
    Fig 4: Connecting Left Side Fuel Hose To Injector Pipe
    G02945192Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the air assist hoses.
    Fig 5: Connecting Air Assist Hoses
    G02945193Courtesy of SUBARU OF AMERICA, INC.
  7. Install the fuel injectors.
    NOTE: Replace the O-rings with new ones.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.