Transmission Fluid Cooler Backflushing and Cleaning

Transmission Fluid Cooler Backflushing and Cleaning









Cooler Tubes and Fluid Flow









NOTICE: Whenever the transmission has been overhauled or a remanufactured transmission has been installed, the transmission fluid cooler tubes and the radiator in-tank fluid cooler must be cleaned and backflushed to remove any contaminants or repeat transmission failure will occur.

NOTE: Install a new Oil-To-Air (OTA) cooler as part of a transmission overhaul, or when installing a remanufactured transmission.

NOTE: Repeat repairs will occur if the transmission fluid flow does not meet specification. To avoid repeat repairs, carry out the fluid cooler flow test. For additional information, refer to Transmission Fluid Cooler TorqShift(R).

NOTE: Plug the Turbo-Tank Heated Cooler Line Flusher into a 110-volt outlet and allow it to heat up to the correct temperature.

1. Flush the transmission cooler return tube first.

1. The transmission cooler return tube can be identified as the tube that runs from the OTA outlet to the rear of the transmission.

2. Using the appropriate fittings and quick disconnects supplied with the Turbo-Tank Heated Cooler Line Flusher, connect the Turbo-Tank Heated Cooler Line Flusher pressure and return lines to either end of the transmission cooler return tube.

3. Switch the Turbo-Tank Heated Cooler Line Flusher pump on and allow it to run for 60 seconds.

4. Turn the switch off after 60 seconds and disconnect the pressure line.

5. Blow air through the cooler tube until the transmission fluid is drained back into the Turbo-Tank Heated Cooler Line Flusher.

6. Disconnect the Turbo-Tank Heated Cooler Line Flusher return line.

2. Flush the transmission cooler pressure tube and radiator in-tank transmission fluid cooler as follows:

1. The pressure tube and radiator in-tank transmission fluid cooler must be back flushed, then forward flushed. This is necessary to thoroughly flush the in-tank transmission fluid cooler.

2. The transmission fluid cooler pressure tube can be identified as the tube that runs from the OTA transmission fluid cooler inlet to the front of the transmission.

3. Using the appropriate fittings and quick disconnects supplied with the Turbo-Tank Heated Cooler Line Flusher, connect the Turbo-Tank Heated Cooler Line Flusher pressure tube to the radiator in-tank transmission fluid cooler outlet. Connect the Turbo-Tank Heated Cooler Line Flusher return line to the transmission fluid cooler pressure tube (the cooler tube near the transmission bellhousing).

4. Switch the Turbo-Tank Heated Cooler Line Flusher on and allow it to run for 15 minutes.

5. Turn the switch off after 15 minutes then reverse the Turbo-Tank Heated Cooler Line Flusher lines.

6. Switch the Turbo-Tank Heated Cooler Line Flusher pump on and allow it to run for 15 minutes.

7. Disconnect the Turbo-Tank Heated Cooler Line Flusher pressure tube and blow air through the tube until the transmission fluid is drained back into the flusher.

8. Disconnect the Turbo-Tank Heated Cooler Line Flusher return line.