E 250 3/4 Ton Van V8-5.4L CNG VIN M (1997)
Fluid Line/Hose: Service and Repair
Flushing and Cleaning
CAUTION: Test the Torque Converter/Oil Cooler Cleaner to make sure a vigorous fluid flow is present before preceding. Replace the system filter if
the flow is weak or contaminated.
1. Disconnect the fluid cooler tubes from the cooler bypass valve (CBV).
2. Connect the Torque Converter/Oil Cooler Cleaner and the Oil Cooler Flusher Kit appropriately.
(1) Connect the pressure line to the fluid cooler inlet tube.
(2) Connect the return line to the fluid cooler outlet tube.
3. Place the outlet end of the return line in the solvent tank reservoir.
4. Switch the solvent pump on. Allow the solvent to circulate a minimum of five minutes. During this time, cycle the solvent pump ON and OFF to
help dislodge contaminants.
5. Switch the solvent pump OFF.
6. Disconnect the pressure line from the fluid cooler inlet tube.
7. Using 344.75 kPa (50 psi) (maximum) regulated compressed air, blow through the fluid cooler inlet tube until all solvent is removed.
8. Disconnect the return line from the fluid cooler outlet tube.
9. Remove the CBV.
CAUTION: The Viton-coated washers can fall off the CBV.
10. Plug the case connector holes to prevent fluid drain from the transmission.
11. Plug the CBV converter-out-to-cooler inlet with a 13 x 1.5 mm plug.
