Fuel Injector: Service and Repair

REMOVAL

WARNING:
- DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED, RESULTING IN POSSIBLE PERSONAL INJURY.
- FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING.
- BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED.

1. Perform the fuel pressure release procedure.
2. Partially drain the cooling system.







3. Remove the power steering fluid reservoir bracket.
1 Remove the bolts.
2 Remove the power steering fluid reservoir bracket.







4. Remove the accelerator control splash shield.
1 Remove the bolts.
2 Remove the accelerator control splash shield.







5. Disconnect the fuel pressure regulator valve vacuum hose.
6. Disconnect the fuel lines..







7. Disconnect the four RH fuel injector electrical connectors.







8. Disconnect the four LH fuel injector electrical connectors.







9. Disconnect the heater water inlet tube hose.
1 Release and move hose clamp.
2 Disconnect the heater water inlet tube hose and position aside.







10. Remove the brake booster bracket and tube.
1 Remove the nut.
2 Release and move the two hose clamps.
3 Remove the brake booster tube.







11. Remove the Positive Crankcase Ventilation (PCV) hose.







12. Disconnect the Exhaust Gas Recirculation (EGR) components.
1 Remove the EGR valve to exhaust manifold tube lower fitting.
2 Remove the (A) EGR valve to exhaust manifold tube upper fitting and the (B) EGR valve to EGR valve to exhaust manifold tube.
3 Disconnect the two Differential Pressure Feedback EGR (DPFE) transducer hoses.
4 Disconnect the EGR valve vacuum hose.







13. Disconnect the Vapor Management Valve (VMV) hose.







14. Remove the bolts.







15. Remove the (A) fuel injectors from the (B) fuel injection supply manifold.







16. Remove and discard the O-rings from each fuel injector.



























INSTALLATION

WARNING: DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED, RESULTING IN POSSIBLE PERSONAL INJURY.

1. Follow the removal procedure in reverse order.

NOTE: Lubricate new O-rings with engine oil.