Chevrolet Silverado / GMC Sierra. Service manual — part 1630

Fig. 67: View Of Fan Assembly Removed
Courtesy of GENERAL MOTORS CORP.

3. Install the fan assembly.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 68: Using Special Tools For Fan Clutch
Courtesy of GENERAL MOTORS CORP.

4. Install the J 46406 to the fan clutch.

Tighten: Tighten the nut clockwise to 56 N.m (41 lb ft).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

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

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

FAN CLUTCH REPLACEMENT (DIESEL)

Tools Required

J 41240-5A Fan Clutch Wrench

Removal Procedure

1. Remove the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud

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

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 69: Identifying Fan Shroud Mounting Brackets & Bolts
Courtesy of GENERAL MOTORS CORP.

2. Remove the 3 engine cooling fan shroud bolts (1).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado