Transmission Cooler Flushing. Geo Metro 1996

For 1990-2009 cars

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

Use the following procedure in order to flush out the fluid cooler and the hoses:

1. Disconnect both cooler hoses (1,2) at their clamps at the top of the transaxle.
2. Place a hose over the end of the fluid cooler inlet hose (from the bottom of the cooler) and insert the hose into an empty container.
3. Use a fluid suction gun in order to flush clean solvent or the equivalent through the return hose from the bottom of the cooler.

Continue to flush clean solvent through the return hose until the until clean solvent comes through the hose that is attached to the inlet hose.

This process will back flush the fluid cooler.

4. Remove the hose from the cooler inlet hose and place it on the return hose.
5. Use the fluid suction gun in order to flush clean solvent or the equivalent through the inlet hose.

Continue to flush clean solvent through the inlet hose until the clean solvent comes through the hose attached to the return hose.

6. Apply compressed air to the return hose in order to remove the remaining solvent from the fluid cooler.

Flush the fluid cooler with transmission fluid.

7. Reconnect the fluid cooler hoses to the cooler lines at the top of the transaxle.