Torque Converter Cleaning and Inspection

Torque Converter Cleaning And Inspection
1. If a new or remanufactured torque converter is being installed, continue with Substep 2 of Step 2.
2. If a new or remanufactured torque converter is not being installed, the following procedures must be carried out:
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 forward and backward flushing.
3. All cooler lines must be thoroughly cleaned by backward and forward flushing.
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, new fluid cooler, cooler bypass valve, and/or cooler lines must be installed.
7. If new coolers are to be installed, use only factory approved service parts.