Torque Converter: Testing and Inspection

Torque Converter Contamination Inspection





1. A new or remanufactured torque converter must be installed if one or more of the following statements is true:
- A torque converter malfunction has been determined based on complete diagnostic procedures.

- The torque converter stud or studs, impeller hub or bushing are damaged.

- The torque converter exhibits external discoloration (due to overheating).

- There is evidence of transmission assembly or fluid contamination due to the following transmission or converter failure modes.
- Major metallic failure

- Multiple clutch plates or band failures

- Sufficient component wear which results in metallic contamination

- Water or antifreeze contamination

2. If none of the above conditions are present, continue with the following fluid inspection.

3. Pour a small amount of transmission fluid from the torque converter onto an absorbent white tissue or through a paper filter.

4. Examine the fluid for contaminants, color and smell. The fluid must be free of contaminants, red in color and not have a burnt smell.

5. NOTICE: Do not use water-based cleaners or mineral spirits to clean or flush the torque converter or transmission damage will occur.

If the fluid passed inspection:
- drain the remaining fluid from the torque converter.

- using only the recommended transmission fluid, add 1.9L (2 qt) of clean fluid into the converter and agitate by hand.

- thoroughly drain the fluid.