Colorado 2WD L5-3.5L VIN 6 (2005)
1. Install the fuel injector harness to the fuel rail.
2. Install the fuel pressure regulator.
3. Install the fuel injectors (3).
INSTALLATION PROCEDURE
1. Lightly lubricate the new lower fuel injector O-ring seals (4) with mineral oil GM P/N 9981704.
2. Install the new O-ring seals (4) on the spray tip end of each fuel injector (3).
3. Position the fuel rail to the cylinder head, inserting the spray tip ends of the fuel injectors.
