Lubrication Hydraulic Circuits

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

Lubrication for the transaxle is supplied by the transmission fluid cooler return tube. Transmission fluid is sent to the transmission fluid cooler from the Torque Converter Clutch (TCC) control valve.

LINE pressure supplied to the pressure regulator valve is sent to the TCC control valve as CONV FD pressure. During TCC release, the TCC control valve sends the transmission fluid to the torque converter to release the clutch. The transmission fluid returns to the TCC control valve from the torque converter and is directed to the transmission fluid cooler on the COOLER FEED circuit.

Fig 1: Identifying Lubrication Passage

Courtesy of FORD MOTOR CO.

When the TCC clutch is applied the TCC solenoid applies pressure to the TCC control and regulator apply valves. The TCC control valve directs the CONV FD circuit to the COOLER FEED circuit.

For lubrication passage location and description, refer to Mechanical Components and Functions .

Fig 2: Identifying Lubrication Circuits

Courtesy of FORD MOTOR CO.