Vortech GM 5.3L/6.2L Light Truck/SUV - 2007-2008 User Manual

Page 13

P/N: 4GL020-018

11NOV08 GM Trk/H2(4GL..018v2.0)

A. Relieve the fuel system pressure.

B. Disconnect the eight fuel injector wiring clips

and retainers from the injectors.

C. Remove the four 10mm bolts holding down

the fuel rail on the intake manifold. Lift up on

the rails evenly, removing all eight injectors.

D. Using a small amount of clean motor oil, light-

ly lubricate the O-rings on both ends of the

Vortech supplied fuel injectors.

E. Install the new injectors into the fuel rails with

the terminals facing outward.

F. Carefully lower the fuel rail/injector assembly

down onto the intake manifold. Check to see

that each injector has been seated properly

into the manifold.

G. Tighten down the fuel rail assembly with the

original bolts and attach the wiring clips to the

injector terminals.

FUEL INJECTOR REPLACEMENT

NOTE: Complete removal of the fuel rail will aid in injector replace-

ment. Separate the fuel rail supply line from the rail using

springlock disconnect tool.