Installation Procedure

WARNING: This page is about a different variant/trim than selected.

NOTE: Ensure proper torquing of the fuel injector line. An under-torqued fuel injector line will not seal properly and an over-torqued fuel injector line may damage the fuel injector fitting. An improperly sealed or damaged fuel injector line or fuel injector fitting will cause a fuel leak.

Fig 1: View Of Fuel Injector Pipes

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

Install the fuel injector pipes.
Tighten: Tighten the fittings to 41 N.m (30 lb ft).
After installing the fuel injector pipes, clean the injector pipes and apply sealant GM P/N 97720043, at the fittings to prevent moisture and debris from collecting between the line and fitting.
Position back engine harness and install bolts to bracket at left front of engine.
Tighten: Tighten the bolts to 21 N.m (15 lb ft).
Install the positive PCV hose/pipe. Refer to Crankcase Ventilation Hoses/Pipes Replacement (LLY, LBZ) or Crankcase Ventilation Hoses/Pipes Replacement (LMM) .
Install the glow plug module and bracket. Refer to Glow Plug Control Module Replacement .
Install the auxiliary generator. Refer to Auxiliary Generator Replacement .
Install the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement (6.6L) .
Prime the fuel system. Refer to Fuel System Priming .
Start the engine.
If the engine stalls, repeat the above step.
Inspect the fuel system for fuel leaks.
Install the engine cover. Refer to Engine Cover Replacement .