Radiator: Testing and Inspection

Radiator Core

NOTE: With the introduction of a new radiator braze process, there is no longer an approved service method for repairing radiator core leaks. Due to the type of flux used during brazing, the two component epoxy material previously used will not adhere to the aluminum radiator core. If the radiator core leaks, the radiator should be replaced.

Install steel or brass plugs in the transmission oil cooler fittings before cleaning and keep them installed during the entire service operation.

External

NOTE: Do not use a metal brush to clean an aluminum core. Use only horsehair, bristle or nylon brushes.
Clean outside of aluminum core with a soft bristle brush, warm water and a mild household liquid detergent. Rinse with clear water.

Internal

NOTE: Do not use caustic cleaning solutions or copper/brass radiator cleaning agents on aluminum radiators.
Internal cleaning of the aluminum tubes can be accomplished with sonic clearing equipment. Rinse the core with clean water when completed.