Cooling System - Humming/Droning Noises From Radiator Fan
Humming/droning noises from radiator fanTopic number LI20.40-P-055433
Version 1
Design group 20.40 Fan, fan clutch
Date 01-14-2013
Validity Model 166 with engine 278
Reason for change
Complaint:
Radiator fan makes noises during operation.
Cause:
Dirt can settle on the blades of the radiator fan, particularly during off-road operation.
This can cause imbalance in the fan, which can produce vibrations/noises.
Remedy:
Note:
^ Do not replace the radiator fan.
^ Clean fan using a steam cleaner.
Symptoms