Torque Converter

4R70E/4R75E

Torque Converter

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.

- Converter stud or studs, impeller hub or bushing are damaged.

- Discoloration (due to overheating).

- Evidence of transmission assembly or transmission fluid contamination due to the following transmission or converter failure modes:
- Major metallic failure.

- Multiple clutches or clutch plate failures.

- Sufficient component wear which results in metallic contamination.

- Internal torque converter contamination present. For additional information, refer to Torque Converter Contamination Inspection Torque Converter Contamination Inspection.