Torque Converter Cleaning And Inspection

If installing a new torque converter, continue with Substep 2 of Step 2.
If not installing a new torque converter, the following procedures must be done:
1. The torque converter must be thoroughly cleaned.
  - Torque converters with drain plugs can be cleaned by using a suitable torque converter/fluid cooler cleaner.
  - Torque converters without drain plugs can be cleaned by hand. Partially fill the torque converter using only 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 transmission, and reinstall.
2. All in-tank and auxiliary coolers must be thoroughly cleaned by backward and forward flushing. For additional information, refer to TRANSMISSION FLUID COOLER - BACKFLUSHING AND CLEANING .
3. All 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. For additional information, refer to TRANSMISSION FLUID COOLER .
6. If the transmission cooling system fails the Transmission Fluid Cooler Flow Test, install a new fluid cooler, cooler bypass valve, or cooler lines. For additional information, refer to TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
7. If installing a new cooler, use only factory-approved parts. For additional information, refer to ENGINE COOLING .