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Chevrolet Silverado / GMC Sierra. Manual - part 1632
Fig. 74: View Of Fan Clutch Hub & Nut
Courtesy of GENERAL MOTORS CORP.
4. Use a J 41240-5A on the fan clutch hub nut (2) to install a long pry bar to the fan clutch hub
(1).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Tighten: Tighten the nut clockwise to 56 N.m (41 lb ft).
Fig. 75: Identifying Fan Shroud Mounting Brackets & Bolts
Courtesy of GENERAL MOTORS CORP.
5. Position the engine cooling fan shroud on the 3 mounting brackets (1).
6. Install the bolts. Loosely tighten the top mounting bolt at the oil filler neck.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 76: View Of Cooling Fan Shroud
Courtesy of GENERAL MOTORS CORP.
7. Center the engine cooling fan shroud to the fan blade in 3 places (1).
IMPORTANT: Maintain a 6 mm (0.25 in) minimum clearance at all 3 places.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 77: Cooling Fan Shroud And Rubber Seal
Courtesy of GENERAL MOTORS CORP.
8. Make sure the orientation of the cooling fan shroud (1) and rubber seal (2) are installed
correctly
IMPORTANT: Improper installation could cause damage to the fan and
shroud while vehicle is in service.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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