Fuel Injector: Service and Repair
TOOLS REQUIREDJ 43178 Fuel Line Disconnect Tool
REMOVAL PROCEDURE
1. Remove the four fasteners from the engine cover (1).
2. Remove the engine cover (1) from the engine.
3. Relieve the fuel pressure. Refer to Fuel Pressure Relief Procedure.
4. Remove the quick connect coupling cover.
5. Disconnect the coupling for the fuel feed hose from the fuel feed pipe of the fuel rail using the J 43178. Use a shop towel in order to catch any remaining fuel that may leak.
6. Disconnect the PCV hose (1) from the PCV valve.
7. Disconnect the PCV breather hose (2).
8. Disconnect the EVAP hose (3).
9. Swing the two PCV hoses and the EVAP hose away from the cylinder head
10. Remove the bolt to the ignition coil wire harness bracket.
11. Disconnect the electrical connectors to the four fuel injectors.
12. Remove the fastener (1) from the fuel supply pipe bracket.
13. Remove the two fasteners (4) from the fuel rail (3).
14. Remove the fuel rail (3) and the spacers (2) from the engine.
15. Remove the fuel injectors (1) with the O-rings (3) and with the grommets (2) from the fuel rail or cylinder head.
INSTALLATION PROCEDURES
1. Install new O-rings (3) and new grommets (2) on the fuel injectors (1).
2. Apply clean engine oil to the O-rings (3) and to the grommets (2).
3. Install the fuel injectors (1) into the fuel rail.
4. Install the fuel rail (3) and the spacers (2) onto the engine.
5. Secure the fuel rail to the engine with the 2 fasteners (4).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the fasteners to 29 N.m (21 lb ft).
6. Install the fastener (1) to the fuel supply pipe bracket.
Tighten
Tighten the fastener to 9 N.m (80 lb in).
7. Connect the electrical connectors to the four fuel injectors.
8. Install the bolt to the ignition coil wire harness bracket.
Tighten
Tighten the fastener to 10 N.m (89 lb in).
9. Connect the EVAP hose (3).
10. Connect the PCV breather hose (2).
11. Connect the PCV hose (1) to the PCV valve.
12. Connect the quick-connect fitting (1) for the fuel feed hose to the fuel feed pipe (2) of the fuel rail.
13. Install the quick connect coupling cover.
14. Connect the negative battery cable.
Tighten
Tighten the retainer for the negative battery cable terminal to 15 N.m (11 lb ft).
15. Turn ON the ignition in order to pressurize the fuel system.
16. Turn OFF the ignition.
17. Inspect for fuel leaks.
18. Repair any fuel leaks as necessary.
19. Install the engine cover (1) to the engine.
20. Secure the engine cover (1) with the four fasteners.
Tighten
Tighten the fasteners to 7 N.m (62 lb in).