Torque Converter Leak Check: Procedure

Clean the outside surface of the torque converter.
Install the special tool into the converter hub.

Fig 1: Installing Special Tool Into Converter Hub
Courtesy of FORD MOTOR CO.

WARNING: Always follow the correct safety procedures while using a press. Failure to follow these instructions may result in personal injury.

Fig 2: Positioning Torque Converter With Installed Special Tool Into Arbor Press

Courtesy of FORD MOTOR CO.

Position the torque converter with the installed special tool into an arbor press. Secure the press. Apply enough force with the press to seal the special tool into the torque converter.
Using the special tool, apply air pressure to the valve.

Fig 3: Applying Air Pressure To Valve
Courtesy of FORD MOTOR CO.

WARNING: To prevent injury, wear eye protection when using pressurized air.

Fig 4: Applying Air Pressure To Valve On Special Tool

Courtesy of FORD MOTOR CO.

with the special tool installed and air pressure applied to the valve on the special tool, inspect for leaks at the converter hub, seams, and studs. A soap bubble solution may be applied around those areas to aid in diagnosis. If any leaks are present, install a new or remanufactured torque converter.
Remove the air hose. release the pressure and then slowly release the press, and the tool. Remove the torque converter from the press.

Fig 5: Releasing Air Pressure
Courtesy of FORD MOTOR CO.