Radiator Cleaning

CAUTION: NEVER spray water on a hot radiator. The resulting steam could cause personal injury.

NOTE: The radiator fins are necessary for good heat transfer. Do not brush the fins. This may cause damage to the fins, reducing heat transfer.

IMPORTANT: Remove bugs, leaves, dirt and other debris by blowing compressed air through the engine side of the radiator.

Some conditions may require the use of warm water and a mild detergent.
Clean the A/C condenser fins.
Clean between the A/C condenser and radiator.
Clean the radiator cooling fins.
Straighten any damaged cooling fins.
Vehicles equipped with a diesel engine, clean between the charged air cooler and the A/C condenser also.
Removal of the charge air cooler may be necessary to clean the fins. Refer to Charged Air Cooler Replacement in Engine Mechanical - 6.6L (LLY).