Chevrolet Silverado / GMC Sierra. Service manual — part 418

Fig. 5: View Of Drive Belt (Dual Generator)
Courtesy of GENERAL MOTORS CORP.

1. Install the drive belt, if equipped with dual generators.

2. Route the drive belt over and/or around all the drive pulleys except for the tensioner.

2008 Chevrolet Silverado 1500

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

Fig. 6: View Of Drive Belt (Single Generator)
Courtesy of GENERAL MOTORS CORP.

3. Install the drive belt, if equipped with a single generator.

4. Route the drive belt over and/or around all the drive pulleys except for the tensioner.

5. Install a 3/8 inch breaker bar into the tensioner opening and rotate the tensioner

counterclockwise.

6. Install the belt over and/or around the tensioner.

7. Slowly release the tension on the tensioner arm.

8. Inspect the drive belt for proper installation on and/or around all pulleys.

2008 Chevrolet Silverado 1500

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

Fig. 7: Identifying Fan Shroud Mounting Brackets & Bolts
Courtesy of GENERAL MOTORS CORP.

9. Position the engine cooling fan shroud on the 3 mounting brackets (1).

10. Install the bolts. Loosely tighten the top mounting bolt at the oil filler neck.

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Fig. 8: View Of Cooling Fan Shroud
Courtesy of GENERAL MOTORS CORP.

11. Center the engine cooling fan shroud to the fan blade in 3 places (1).

12. Fully tighten the 3 engine cooling fan shroud bolts (1).

Tighten: Tighten the bolts to 8 N.m (71 lb in).

13. Install the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement

(Mechanical) or Engine Coolant Fan Upper Shroud Replacement (Automatic
Transmission - Diesel) .

IMPORTANT: Maintain a 6 mm (0.25 in) minimum clearance at all 3 places.

2008 Chevrolet Silverado 1500

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