Fan Clutch: Service and Repair

^ Tools Required
- J 41240 Fan Clutch Wrench and Spanner
- J 41240-5A Fan Clutch Wrench

Removal Procedure

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.
2. Remove the coolant recovery reservoir or surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement
3. Remove the upper radiator shroud from the radiator. Refer to Fan Shroud 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.


Installation Procedure





1. Install the fan to the clutch.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the retaining bolts to the fan and clutch.
^ Tighten the 4.3L, 5.0L, and 5.7L fan to clutch bolts to 33 Nm (24 ft. lbs.).
^ Tighten the 6.5L Diesel fan to clutch bolts to 17 Nm (13 ft. lbs.).





3. Install the fan and clutch on the 4.3L, 5.0L and 5.7L using the J41240. Use the Spanner in order to hold the pulley. 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 the nut to 57 Nm (42 ft. lbs.).





4. Install the upper radiator shroud. Refer to Fan Shroud Replacement.
5. Install the coolant recovery reservoir or surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement.
6. Install the air cleaner and the duct. Refer to Air Cleaner Assembly Replacement.