Colorado 4WD L5-3.7L (2007)
Fuel Injector: Removal and Replacement
Fuel Injector Replacement
Notice: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do
not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.
Important: The engine oil may be contaminated with fuel if the fuel injectors are leaking.
Removal Procedure
1. Remove the fuel rail assembly.
2. Disconnect the fuel injector harness connector from the fuel injector.
3. Remove and discard the fuel injector retainer clip (1).
4. Remove the fuel injector from the fuel rail.
5. Remove and discard the fuel injector O-ring seals (2 and 3) from the injector.
Installation Procedure
Important: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.
The fuel injector (1) is stamped with a part number identification (2). A 4 digit build date code (3) indicates the month (4), day (5), year (6), and the shift
(7) that built the injector.
