Fuel Injector: Service and Repair
Fuel InjectorREMOVAL
NOTE: If the fuel injectors are leaking, the engine oil may be contaminated with fuel. Check the oil for signs of contamination and change the oil and filter if necessary.
NOTE: Use care in removing the fuel injector in order to prevent damage to the fuel injector electrical connector pins or fuel injector nozzles. The fuel injector is an electrical component and should not be immersed in any type of cleaner as this may damage the fuel injector.
NOTE: Fuel injectors are serviced as complete assembly only.
1. Disconnect the negative battery cable.
2. Disconnect electrical connector from fuel injector.
3. Remove the fuel rail. Refer to Fuel Rail Removal Procedure.
4. Remove the fuel injector retainer clip.
5. Remove fuel injector assembly from fuel rail.
6. Remove O-ring from the fuel injector.
7. Remove O-ring backup from fuel injector.
INSTALLATION
1. Lubricate the new O-ring with engine oil.
2. Install the O-ring backup on the fuel injector.
3. Install new O-ring on the fuel injector.
4. Install all four injector on the fuel rail.
5. Use new injector retainer clip to retain the injector to the fuel rail.
6. Coat the end of the fuel injector with engine oil.
7. Install fuel rail assembly. Refer to Fuel Rail Installation Procedure.
8. Connect the negative battery cable.
Fuel Pressure Regulator Removal Procedure
CAUTION: To reduce the risk of tire and personal injury, it is necessary to relieve the fuel system pressure before servicing the fuel system components.