Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Remove the water outlet. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
Reposition the return line hose clamps at the return line and injection pump.
Remove the hose (3) from the return line and injection pump.

Fig 1: View Of Fuel Hoses & Clamps At Injection Pump
Courtesy of GENERAL MOTORS CORP.

Fig 2: View Of Left Fuel Rail Feed Pipe Fittings

GM1387871

Courtesy of GENERAL MOTORS CORP.

Disconnect the left fuel rail feed pipe fittings (1).

Fig 3: View Of Left Fuel Rail At Pump Pipe

GM1335603

Courtesy of GENERAL MOTORS CORP.

Remove the left fuel rail feed pipe.

Fig 1: View Of Left Fuel Rail At Pump Pipe

GM1335603

Courtesy of GENERAL MOTORS CORP.

Install the left fuel rail feed pipe.

Fig 2: View Of Left Fuel Rail Feed Pipe Fittings

GM1387871

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Connect the left fuel rail feed pipe fittings (1).
Tighten: Tighten the fittings to 41 N.m (30 lb ft).

Fig 3: View Of Fuel Hoses & Clamps At Injection Pump

GM1387646

Courtesy of GENERAL MOTORS CORP.

Install the hose (3) to the return line and injection pump.
Position the return line hose clamps at the return line and injection pump.
Install the water outlet. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
Prime the fuel system. Refer to Fuel System Priming .
Start the engine. If the engine stalls, repeat the above step.
Once the engine starts, inspect for fuel leaks.