Chevrolet Silverado / GMC Sierra. Service manual — part 625

Fig. 29: View Of Oil Feed Pipe Bolt, Washer & Pipe
Courtesy of GENERAL MOTORS CORP.

NOTE:

Do not twist the turbocharger oil feed pipe. Twisting of the feed
pipe will result in the collapse and deformation of the plastic
pipe, restricting oil flow and causing turbocharger damage.
During turbocharger replacement, gently push the oil feed pipe
towards the front of the engine to clear the turbocharger.
Assistance may be required to keep the pipes clear of the
turbocharger during removal or installation.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

1. Install the turbocharger oil supply line to the engine block.

2. Install the turbocharger oil supply line eye bolt and washers.

Tighten: Tighten the turbocharger oil supply line eye bolt to 26 N.m (19 lb ft).

3. Install the turbocharger lower heat shield to the engine block.

NOTE:

Refer to Fastener Notice .

IMPORTANT: Lubricate the washers with diesel fuel before installing.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 30: View Of Turbocharger W/Oil Return Pipe
Courtesy of GENERAL MOTORS CORP.

4. Install the turbocharger assembly with the oil return pipe.

5. Install the turbocharger mounting bolts.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Tighten: Tighten the turbocharger mounting bolts to 108 N.m (80 lb ft).

Fig. 31: View Of Turbocharger Outlet Coolant Pipe
Courtesy of GENERAL MOTORS CORP.

6. Install the turbocharger cooling outlet hose and tighten hose clamp.

IMPORTANT: Use care not to damage this hose during the procedure.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado