Chevrolet Silverado / GMC Sierra. Service manual — part 462

Fig. 166: View Of Turbocharger W/Oil Return Pipe
Courtesy of GENERAL MOTORS CORP.

4. Install a NEW turbocharger oil return pipe gasket at the flywheel housing.

5. Install the turbocharger (with the oil return pipe).

6. Install the turbocharger bolts.

2008 Chevrolet Silverado 1500

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

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

7. Install the turbocharger oil return pipe nuts at the top of the flywheel housing.

Tighten: Tighten the nuts to 25 N.m (18 lb ft).

Fig. 167: View Of Turbocharger Oil Feed Pipe Banjo Bolt
Courtesy of GENERAL MOTORS CORP.

8. If installing a NEW turbocharger, add about 120-150 cc (4-5 oz) of clean engine oil in the

turbocharger oil feed pipe opening while rotating the impeller.

9. Position the oil feed pipe to the turbocharger.

2008 Chevrolet Silverado 1500

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

10. Install a NEW turbocharger oil feed pipe washer and the banjo bolt.

Tighten: Tighten the bolt to 34 N.m (25 lb ft).

Fig. 168: View Of Left Exhaust Pipe
Courtesy of GENERAL MOTORS CORP.

11. Install the left exhaust pipe and a NEW gasket.

12. Install the left exhaust pipe to turbocharger bolts.

Tighten: Tighten the bolt to 53 N.m (39 lb ft).

2008 Chevrolet Silverado 1500

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

Fig. 169: View Of Right Exhaust Pipe
Courtesy of GENERAL MOTORS CORP.

13. Install the right exhaust pipe and a NEW gasket.

14. Install the right exhaust pipe to turbocharger bolts.

Tighten: Tighten the bolt to 53 N.m (39 lb ft).

2008 Chevrolet Silverado 1500

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