Fan Clutch Replacement 4.3L, 5.0L, 5.7L, and 6.5L

Tools Required

Caution: Do not use or attempt to repair a damaged cooling fan assembly. Replace damaged fans with new assemblies. An unbalanced cooling fan could fly apart causing personal injury and property damage.

1. Remove the air cleaner and the duct. Refer to Air Cleaner Assembly Replacement in Engine Controls -- 4.3L, Air Cleaner Assembly Replacement in Engine Controls -- 5.0L, 5.7L, Air Cleaner Assembly Replacement in Engine Controls -- 6.5L, Air Cleaner Assembly Replacement in Engine Controls -- 7.4L.
2. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .



3. Remove the upper radiator shroud from the radiator. Refer to Radiator Replacement .



4. Remove the fan and the clutch on the 4.3L, 5.0L and 5.7L using the J 41240 . Use the Spanner in order to hold the Pulley.

Remove the fan and the clutch on the 6.5L using the J 41240-5A . Use the Spanner of the J 41240 in order to hold the Pulley.




5. Remove the retaining bolts from the fan and clutch.
6. Remove the fan from the clutch.

1. Install the fan to the clutch.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the retaining bolts to the fan and clutch.

Tighten

•	Tighten the 4.3L, 5.0L, and 5.7L fan to clutch bolts to 33 N·m (24 lb ft).

•	Tighten the 6.5L Diesel fan to clutch bolts to 17 N·m (13 lb ft).




3. Install the fan and clutch on the 4.3L, 5.0L and 5.7L using the J 41240 . Use the Spanner in order to hold the pulley.
4. Install the fan and clutch on the 6.5L using the J 41240-5A and J 41240 . Use the Spanner in order to hold the pulley.

Tighten
Tighten the nut to 57 N·m (42 lb ft).




5. Install the upper radiator shroud. Refer to Radiator Replacement .
6. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
7. Install the air cleaner and the duct. Refer to Air Cleaner Assembly Replacement in Engine Controls -- 4.3L, Air Cleaner Assembly Replacement in Engine Controls -- 5.0L, 5.7L, Air Cleaner Assembly Replacement in Engine Controls -- 6.5L, Air Cleaner Assembly Replacement in Engine Controls -- 7.4L.

Fan Clutch Replacement 7.4L

1. Remove the air cleaner and the duct. Refer to Air Cleaner Assembly Replacement in Engine Controls -- 4.3L, Air Cleaner Assembly Replacement in Engine Controls -- 5.0L, 5.7L, Air Cleaner Assembly Replacement in Engine Controls -- 6.5L, Air Cleaner Assembly Replacement in Engine Controls -- 7.4L.
2. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement
3. Remove the upper radiator shroud. Refer to Radiator Replacement .
4. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical -- 4.3L, Drive Belt Replacement in Engine Mechanical -- 5.0L, 5.7L, Drive Belt Replacement in Engine Mechanical -- 6.5L or Drive Belt Replacement in Engine Mechanical -- 7.4L.



5. Remove the fan and the clutch retaining nuts from the coolant pump pulley.
6. Remove the fan and the clutch from the vehicle.



7. Remove the retaining bolts from the fan and clutch.
8. Separate the fan and clutch.

1. Install the fan to the clutch.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the retaining bolts to the fan and clutch.

Tighten
Tighten the bolts to 33 N·m(24 lb ft).




3. Install the fan and the clutch to the vehicle.
4. Install the fan and the clutch retaining nuts to the coolant pump pulley.

Tighten
Tighten the nuts to 24 N·m (18 lb ft).

5. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical -- 4.3L, Drive Belt Replacement in Engine Mechanical -- 5.0L, 5.7L, Drive Belt Replacement in Engine Mechanical -- 6.5L or Drive Belt Replacement in Engine Mechanical -- 7.4L.
6. Install the upper radiator shroud. Refer to Radiator Replacement .
7. Install the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement .
8. Install the air cleaner and the duct. Refer to Air Cleaner Assembly Replacement in Engine Controls -- 4.3L, Air Cleaner Assembly Replacement in Engine Controls -- 5.0L, 5.7L, Air Cleaner Assembly Replacement in Engine Controls -- 6.5L, Air Cleaner Assembly Replacement in Engine Controls -- 7.4L.