Econoline E350 1 Ton V8-5.4L Prop SOHC VIN Z (1998)
Transmission Cooler: Service and Repair
Transmission Cooler Port
Flushing and Cleaning
1. Remove the cooler bypass valve.
2. Using the Torque Converter/Oil Cooler Cleaner and adapter kit flush the transmission cooler bypass valve assembly.
3. Plug the cooler bypass valve front fitting with a 13 mm x 1.5 mm threaded plug.
CAUTION: Make sure the cooler bypass valve is in the solvent tank before turning on the solvent. Also, make sure the fitting is pointed down so
solvent does not spray upward out of the tank.
NOTE: The solvent pressure must be a minimum of 50 psi to overcome the valve inside the cooler bypass tube and let solvent flow. Do not
exceed 90 psi.
4. Place a 1/2 inch flat washer over the fitting that screws into the case out hole and connect the cleaner pressure line.
5. Place the cooler bypass valve into the solvent tank. Regulate the solvent pressure to between 50 and 90 psi. Turn on the solvent and circulate for 5
minutes.
NOTE: The Torque Converter/Oil Cooler Cleaner can be switched on and off to help dislodge the contaminants.
