How to Fill a Torque Converter

by Richard Rowe

Torque converters (a.k.a. "stall converters") are a type of fluid coupler that transfers power from the engine to the transmission. Torque converters transfer power by using an engine-mounted turbine to push oil (fluid) through a transmission-side turbine until that turbine can no longer pass fluid without moving. Unfortunately, many torque converters can only be refilled while the transmission is already out of the vehicle. However, you can refill some if they are equipped with either a lock-up torque converter or torque converter drain plug without removing them from the vehicle.

Refill the Converter

Step 1

Stand facing the torque converter.

Step 2

Grasp the torque converter firmly with both hands and pull it toward you with only a slight amount of pressure.

Step 3

Turn the torque converter counter-clockwise until you hear a sharp click and it moves toward you about an eighth of an inch.

Step 4

Turn the torque converter counterclockwise until it slides off of the transmission input shaft.

Step 5

Set it on a flat surface with the large hole in the converter hub facing upward.

Step 6

Slowly fill the converter with the amount of fluid specified for your car. This can be anywhere from three to ten quarts. Don't worry about overfilling it; any excess will flow into the transmission.

Step 7

Lift the torque converter and quickly slide it back onto the transmission input shaft to minimize spillage.

Step 8

Turn the converter clockwise while pushing slightly. You will hear a sharp click denoting that it's in the first channel.

Continue turning counter clockwise till you hear another click and then give it another two turns.

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