Fan Blade: Service and Repair

Fan Replacement

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

Removal Procedure





1. Remove the upper fan shroud.
2. If equipped with a 4.3L, 4.8L, 5.3L, 6.0L, or 8.1L engine, install the J 41240 to the fan clutch.
3. If equipped with a 6.6L, engine, install the J 41240-5A to the fan clutch.





4. Remove the fan blade.
5. Lay the fan blade face down on a workbench.





6. If equipped with a 4.3L, 4.8L, 5.3L, or 6.0L engine, remove the fan clutch bolts from the rear of the fan blade, if necessary.





7. If equipped with a 6.6L, or 8.1L engine, remove the fan clutch bolts from the rear of the fan blade, if necessary.
8. Separate the fan clutch from the fan blade.

Installation 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. If equipped with a 6.6L, or 8.1L engine, install the fan clutch onto the fan blade, if necessary.
2. Install the fan clutch bolts





3. If equipped with a 4.3L, 4.8L, 5.3L, or 6.0L engine, install the fan clutch onto the fan blade, if necessary.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the fan clutch bolts.
^ Tighten the fan clutch bolts to 23 Nm (17 ft. lbs.).





5. Install the fan blade.





6. If equipped with a 6.6L, engine, install the J 41240-5A to the fan clutch.
7. If equipped with a 4.3L, 4.8L, 5.3L, 6.0L, or 8.1L engine, install the J 41240 to the fan clutch.
^ Tighten the fan clutch nut to 56 Nm (41 ft. lbs.).
8. Install the upper fan shroud.