Methods For Locating Leaks

GENERAL METHOD
1. Verify that the leak is transmission fluid.
2. Thoroughly clean the suspected leak area.
3. Operate the vehicle for at about 24 km (15 miles) or until normal operating temperatures are reached.
4. Park the vehicle over clean paper or cardboard.
5. Turn OFF the engine.
6. Check for fluid spots on the paper or cardboard.
7. Use the leak spots on the paper or cardboard to trace the source of the leak.
8. Perform the necessary repairs.

POWDER METHOD
1. Thoroughly clean the suspected leak area with solvent.
2. Apply an aerosol type powder (foot powder) to the suspected leak area.
3. Operate the vehicle for at about 24 km (15 miles) or until normal operating temperatures are reached.
4. Turn OFF the engine.
5. Inspect the suspected leak area and trace the leak path though the powder to find the source of the leak.
6. Perform the necessary repairs.

DYE AND BLACK LIGHT METHOD

NOTE: A fluid dye and black light kit is available from various tool manufacturers.

1. Follow the manufacturer's recommendations for the proper amount of dye to use.
2. Add the dye to the transmission fluid using the manufacturer's instructions.
3. Operate the vehicle for at about 24 km (15 miles) or until normal operating temperatures are reached.
4. Detect the source of the leak with the black light.
5. Perform the necessary repairs.