3L30

NOTE: In a major transmission failure where particles of metal or engine coolant has been carried with the fluid throughout the transmission and its fluid cooling system, it will be necessary to flush out the fluid cooler and its connecting hoses. To flush out the fluid cooler and hoses use the following procedure:

1. Raise and suitably support vehicle.





2. Disconnect both cooler hoses at their clamps on the right side of the transmission.

3. Place a hose over the end of the fluid cooler inlet hose (from the left side of the transmission fluid cooler) and insert the hose into an empty container.
4. Using a fluid suction gun, flush clean solvent, or equivalent, through the return hose (from the right side of the transmission fluid cooler) until clean solvent comes through the hose attached to the inlet hose. This process will "back flush" the transmission fluid cooler.
5. Remove the hose from the cooler inlet hose and place it on the return hose.
6. Using the same process as described in Step 3, flush clean solvent or equivalent through the inlet hose until clean solvent comes out the return hose.
7. Remove the remaining solvent from the fluid cooler using compressed air applied to the return hose and flush with transmission fluid.
8. Reconnect fluid cooler hoses to cooler lines at right side of transmission.