GM Service Manual Online
For 1990-2009 cars only

Condition

Action

Torque converter seal leaks

Replace the torque converter seal. Refer to Torque Converter Fluid Seal Replacement .

Front support bolt seals leaking

Replace the bolt seals. Refer to Torque Converter Housing Bolt Seal Replacement .

Converter leaks

Inspect the converter seals, cracked converter pump tangs, converter cover, or converter housing porosity. Replace the parts as required.

Spin-on filter leaking

Replace the filter. Refer to Automatic Transmission Fluid and Filter Replacement .

Main pressure plug leak

Replace or torque the main pressure plug. Refer to Automatic Transmission Fluid Pressure Test Hole Plug Replacement .

Pump bushing shows excessive wear

Rebuild and repair the pump.