Cleaning
EXTERNALInstall plugs into the transmission fluid cooler fittings before cleaning and keep them installed during the cleaning operation.
Clean the outside of the radiator aluminum core with a soft brush, warm water, and a mild household liquid detergent. Rinse with clear water.
INTERNAL
CAUTION: 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 cleaning equipment or by removing one end tank to gain access to the tubes. Then, clean the tubes with a mild household liquid detergent. Rinse the core with clean water when completed. Do not use a metal brush to clean an aluminum core. Use only horsehair, bristle or nylon brushes.