Torque Converter Cleaning And Inspection

Fig 1: Identifying Material Specifications

Courtesy of FORD MOTOR CO.

1. If installing a new torque converter, continue with sub-step 2 of Step 2.
2. If not installing a new torque converter, the following procedures must be carried out:
   1. The torque converter must be thoroughly cleaned.
      1. Torque converter with drain plugs may be cleaned by using a suitable torque converter/transmission fluid cooler cleaner.
      2. Torque converter without drain plugs may be cleaned by hand. Partially fill the torque converter using only the recommended transmission fluid for the applicable transmission. Hand-agitate the torque converter and then thoroughly drain the fluid. Refill the torque converter with new fluid specified for the transmission, and install.
   2. The in-tank and auxiliary coolers must be thoroughly cleaned by forward and backward flushing. For additional information, refer to TRANSMISSION FLUID COOLER - BACKFLUSHING AND CLEANING .
   3. The cooler lines must be thoroughly cleaned by backward and forward flushing. For additional information, refer to TRANSMISSION FLUID COOLER - BACKFLUSHING AND CLEANING .
   4. All cooler bypass valves (CBV), if equipped, must be thoroughly cleaned.
   5. Carry out the Transmission Fluid Cooler Flow Test.
   6. If the transmission cooling system fails the Transmission Fluid Cooler Flow Test, the auxiliary fluid cooler, cooler bypass valve, and or cooler lines may require installation of new components. For additional information, refer to TRANSAXLE/TRANSMISSION COOLING .
   7. If the internal cooler needs to be replaced, refer to ENGINE COOLING . If a new auxiliary cooler needs to be installed, refer to TRANSAXLE/TRANSMISSION COOLING EXTERNAL CONTROLS . If a new CBV needs to be installed, use only factory-approved service parts.