Torque Converter: Inspection
- The torque converter assembly must be replaced for any of the following conditions:
- Evidence of overheating (converter will have a blue color).
- Evidence of damage to the pump assembly.
- Metal particles are found after flushing cooler and cooler lines.
- External leaks in hub weld area.
- Converter pilot is broken, damaged or poor fit into crankshaft.
- Converter hub is scored or damaged.
- Internal failure of stator.
- Contamination from engine coolant.
- Excess end play.
- The torque converter should not be replaced if:
- There is no evidence of metal or clutch plate material in fluid. Drain as much fluid as possible. Flushing torque converter is not recommended.
- There is damage to bolt hole threads. Correct with thread inserts.
- Install Converter End Play Fixture (J-35138) and dial indicator. See Fig 1
. End play should be 0-.020" (0-0.50 mm).
Courtesy of GENERAL MOTORS CORP.