Transmission Fluid Cooler - BACKFLUSHING And Cleaning
WARNING: This page is about a different car, the 2002 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
- Conduct backflushing with a suitable torque converter/fluid cooler cleaner. Test your equipment to make sure that a vigorous fluid flow is present before proceeding. Install a new filter in the flush equipment if flow is weak or contaminated.
- If the vehicle is equipped with an inline transmission fluid filter, remove and discard the filter.
- To aid in attaching the cleaner to the transmission steel cooler lines, connect two additional rubber hoses to the transmission end of the steel transmission cooler lines as described below.
- Connect the cleaner tank pressure line to the steel transmission cooler return line (longest line).
- Connect a tank return hose to the steel transmission cooler pressure line (shorter line). Place the outlet end of this hose in the solvent tank reservoir.
- Turn on solvent pump and allow the solvent to circulate a minimum of 5 minutes (cycling switch on and off will help dislodge contaminants in cooler system).
- Switch off the solvent pump and disconnect the solvent pressure hose from the transmission cooler return line.
- Use compressed air to blow out the cooler(s) and lines (blow air into the transmission cooler return line) until all solvent is removed.
- Remove the rubber return hose from the remaining steel cooler line.
- Once a adequate flow has been established, install a new inline fluid filter on service kit assembly.
- Once the fluid filter has been installed check that fluid will flow out of the filter.
NOTE:
If the vehicle was not equipped with an inline fluid filter, install a fluid filter service kit (XC3Z-7B155-AA) follow the instructions supplied in the kit. If the vehicle was equipped with a inline fluid filter, install a new fluid filter (XC3Z-7B155-BA).