Component Tests and General Diagnostics

Transmission Fluid Cooler Backflushing and Cleaning

1. CAUTION: When internal wear/damage occurs in the transmission, metal particles/clutch plate material/band material can travel into the torque converter and the Oil-To-Air (OTA) fluid cooler. These contaminants are a major cause of recurring transmission concerns. To prevent future concerns, remove these contaminants from the cooling system before placing the transmission back into use.

Install a new OTA fluid cooler if there is leak-age from the OTA fluid cooler, major metallic failure, multiple clutch or clutch plate failure, or sufficient component wear that results in metallic contamination.





2. NOTE: If the vehicle was not equipped with a fluid filter, install a fluid filter service kit. Follow the instructions supplied in the kit. If the vehicle was equipped with a fluid filter, install a new fluid filter.

Install a new inline transmission fluid filter kit or filter and check for leaks.