Torque Converter Cleaning and Inspection

Torque Converter Cleaning And Inspection

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.
^ Torque converter with drain plugs may be cleaned by using a suitable torque converter/transmission fluid cooler cleaner.
^ 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.
3 The 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, the auxiliary fluid cooler, cooler bypass valve, and or cooler lines may require installation of new components.
7 If the internal cooler needs to be replaced, refer to Cooling System. If a new auxiliary cooler needs to be installed, refer to auxiliary cooler. If a new CBV needs to be installed, use only factory-approved service parts.