LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2004 >> MDX Base >> Repair and Diagnosis >> Engine Performance >> System >> PGM-FI System >> Injector Replacement
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Injector Replacement

  1. Relieve fuel pressure (see FUEL PRESSURE RELIEVING ).
  2. Remove the intake manifold (see REMOVAL ).
  3. Disconnect the connectors from the injectors (A).
    Fig 1: Disconnecting Connectors From Injectors (2003-04 Models)
    G03639826Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Disconnecting Connectors From Injectors (2005-06 Models)
    G03639827Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Disconnect the quick-connect fitting (B).
  5. Remove the fuel rail mounting bolts (C) from the fuel rail (D).
  6. Remove the injector clip (E) from the fuel rail.
  7. Remove the injectors from the rails.
  8. Coat the new O-ring (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
    Fig 3: Inserting Injectors Into Fuel Rail (2003-04 Models)
    G03639828Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 4: Inserting Injectors Into Fuel Rail (2005-06 Models)
    G03639829Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Install the injector clip (D).
  10. Coat the injector O-ring (E) with clean engine oil.
  11. Install the injectors in the injector base.
  12. Install the fuel rail mounting bolts.
  13. Install the connectors on the injectors.
  14. Connect the quick-connect fitting (see FUEL LINE/QUICK-CONNECT FITTING REMOVAL ).
  15. Install the intake manifold.
  16. 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 rise. Repeat this two or three times, then check for fuel leakage.
scientia non olet · About LEMON Manuals