2003 Honda Pilot EXFACTORY OEM SERVICE PROCEDURE

Injector Replacement

  1. Relieve fuel pressure (see FUEL PRESSURE RELIEVING ).
  2. Remove the intake manifold (see INTAKE MANIFOLD REMOVAL & INSTALLATION ).
  3. Disconnect the connectors from the injectors (A).
    Fig 1: Disconnecting The Connectors From The Injectors
    G01464097Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Remove the fuel rail mounting bolts (B) from the fuel rail (C).
  5. Remove the fuel rails.
  6. Remove the injectors from the fuel rails.
  7. Slide new cushion rings (A) onto the injectors (B).
    Fig 2: Sliding Cushion Rings Onto The Injectors
    G01464098Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Coat the new O-rings (C) with clean engine oil, and put them on the injectors.
  9. Insert the injectors into the fuel rail (D).
  10. Coat new seal rings (E) with clean engine oil, and press them into the intake manifold.
  11. Install the fuel rail in the intake manifold.
  12. Install the fuel rail mounting bolts.
  13. Install the connectors on the injectors.
  14. Install the intake manifold and the intake manifold cover.
  15. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel pressure in the fuel line rises. Repeat this 2 or 3 times, then check for fuel leakage.
Factory Service Tools

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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.

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