Grand Cherokee 2WD L6-4.0L VIN S (1997)
Fan Blade: Service and Repair
Cleaning and Inspection
The fan blades cannot be repaired. If the fan is damaged, it must be replaced. Inspect the fan blades as follows:
Lay fan blade assembly on a flat surface with leading edge facing down. With tip of blade touching flat surface, replace fan if clearance between
opposite blade and surface is greater than 2.0 mm (0.090 inch). Rocking motion of opposite blades should not exceed 2.0 mm (0.090 inch). Test
all blades in this manner.
CAUTION: If fan is not within specifications, do not attempt to bend or straighten fan.
Inspect fan assembly for cracks, bends, loose rivets or broken welds. Replace fan if any damage is found.
NOTE: If the fan blade assembly is replaced because of mechanical damage, the water pump and viscous fan drive should also be inspected.
These components could have been damaged due to excessive vibration.
