GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 8001 Dial Indicator Set
    • J 26900-13 Magnetic Indicator Base
    • J 35138 Converter End Play Checker

For equivalent regional tools, refer to Special Tools.


    Object Number: 13053  Size: SH
  1. Position the torque converter (1) on the bench with the flywheel lugs facing down.
  2. Install J 26900-13 magnetic indicator base , J 35138 end play checker , and J 8001 dial indicator set onto the torque converter (1).
  3. Set the dial indicator to 0.
  4. Lift J 35138 end play checker and note the dial indicator reading:
  5. • The torque converter end play should be 0.5 mm (0.020 in) or less
    • If the end play is too high, replace the torque converter (1)

    Object Number: 13052  Size: SH
  6. Inspect and replace the torque converter (1) for the following conditions:
  7. • Overheated (torque converter will be blue in color)
    • Leaking at the weld areas
    • A damaged torque converter pilot
    • Evidence of metal particles in the converter, the oil cooler, or the cooler pipes
    • A damaged torque converter stator, a damaged pump, or a damaged turbine
    • A damaged or worn torque converter bushing (2)
    • Contaminated automatic transmission fluid due to engine coolant
  8. Inspect the torque converter for stripped bolt hole threads. If found, repair the torque converter.