The beginning step to replace the fuel injection Fuel Rail assembly for bank 2 (LLT) (3.6L) consists of using ch-48027 or without it to relieve fuel system pressure. The next procedure involves removing the fuel pipe shield in addition to the high pressure fuel sensor and Fuel Rail crossover pipe before discarding the crossover pipe. Begin by removing the Fuel Rail bolts then lift the bank 2 Fuel Rail from the engine while paying attention to the rear section which will make removal simpler. The direct
Fuel Injector hold down clamps need disposal because direct fuel injectors require rebuild whenever removal occurs from the Fuel Rail or cylinder head. The next step involves Fuel Injector rebuild after the removal of the Fuel Rail. Secure the rebuilt direct fuel injectors into their corresponding cylinder heads positions using newly installed hold down clamps. Silicon-free engine oil gm p/n 12345610 (Canadian P/N 9931930) or equivalent should be used to lubricate Fuel Injector cups on the new Fuel Rail before placing the front end over the front injector then rotating the rear down. Begin by screwing the outer Fuel Rail bolts and then proceed to install inner bolts before conducting hand tightening. Sequence the bank 1 Fuel Rail bolt installation with a first torque of 12 nm (106 lb in) and finish at 23 nm (17 lb ft). The procedure now requires installing a new Fuel Rail crossover pipe before mounting the high pressure fuel sensor. The Fuel Injector wiring harness electrical connector needs installation to all components including fuel injectors, Fuel Rail and
Fuel Pressure Sensor. After switching on the ignition with engine off for 2 seconds and subsequently turning it off for 10 seconds you can inspect for fuel leaks. The sequence of final installation includes the fuel pipe shield and low side fuel pressure service port cap and the fuel tank cap.