Radiator Cleaning
Radiator CleaningCaution: NEVER spray water on a hot radiator. The resulting steam could cause personal injury.
Notice: The radiator fins are necessary for good heat transfer. Do not brush the fins. This may cause damage to the fins, reducing heat transfer.
^ Clean the front face of the Air Conditioning (A/C) condenser.
^ If equipped with a 6.6L diesel engine, clean between the charged air cooler, A/C condenser, and radiator.
^ It may be necessary to remove the charged air cooler to completely clean the fins, if so refer to Charged Air Cooler Replacement.
^ Remove bugs, leaves, etc. by blowing compressed air through the radiator.
^ Blow the air from the rear toward the front. If compressed air is not available a water hose can be used to force water through the radiator.
^ Use water only with the engine NOT running and cool.