Transmission Fluid Cooler and Tubes - Backflushing and Cleaning

Transmission Fluid Cooler - Backflushing and Cleaning

CAUTION: Test the torque converter/fluid cooler cleaner to ensure that a vigorous fluid flow is present before proceeding. Replace the system filter if flow is weak or contaminated.





1. If the vehicle is equipped with an inline transmission fluid filter, remove and discard the filter.
2. Using a suitable torque converter/fluid cooler cleaner, flush the fluid cooler and lines.

3. NOTE: Rubber hoses must be attached to the ends of the fluid cooler tubes, to aid in connecting them to the cleaner.

Connect the cleaner pressure and return lines correctly.
1 Connect the pressure line to fluid cooler inlet tube.
2 Connect the return line to fluid cooler outlet tube.
3 Place the outlet end of the return line in the solvent tank reservoir.

4. NOTE: Cycling the solvent pump on and off will help dislodge contaminants in the cooler system.

Switch the solvent pumps on. Allow the solvent to circulate a minimum of 5 minutes.
5. Switch the solvent pump off.
6. Disconnect the cleaner pressure line at the fluid cooler tube.
7. Using compressed air, blow through the fluid cooler inlet tube until all solvent is removed.
8. Remove the rubber hoses from fluid cooler tubes.





9. NOTE: If the vehicle was not equipped with a fluid filter, install a fluid filter service kit (XC3Z-7I3l55-AA), following the instructions supplied in the kit. If the vehicle was equipped with a fluid filter, install a new filter (XC3Z-7Bl55-AB).

Install a new inline transmission fluid filter kit or filter.