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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1394 (Automatic Transmission - Theory & Operation, & Disassembly & Assembly) >> Theory And Operation >> Hydraulic Circuits >> Direct (3, 5, R) Clutch Hydraulic Circuits

Direct (3, 5, R) Clutch 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.

When the direct (3, 5, R) clutch is applied in REVERSE, LINE pressure from the pump is directed to the multiplex manual valve by the manual valve through the REV hydraulic circuit. The multiplex manual valve supplies the direct (3, 5, R) clutch regulator valve with pressure through the REV SUPPLY and C35R SUPPLY hydraulic circuits. The direct (3, 5, R) clutch regulator valve is controlled by SSB and directs regulated C35R SUPPLY pressure to the direct (3, 5, R) clutch through the C35R hydraulic circuit.

Fig 1: Identifying Direct (3, 5, R) Clutch Hydraulic Circuits (Applied In Reverse)
GF0043981Courtesy of FORD MOTOR CO.

When the direct (3, 5, R) clutch is applied in 3rd and 5th gear, LINE pressure from the pump is directed to the multiplex shift valve by the manual valve through the DRIVE 1 hydraulic circuit. The multiplex shift valve directs the pressure to the direct (3, 5, R) clutch regulator valve through the DRIVE 2/C35R SUPPLY circuits. The direct (3, 5, R) clutch regulator valve is controlled by SSB and directs regulated pressure to the direct (3, 5, R) clutch through the C35R hydraulic circuit.

Fig 2: Identifying Direct (3, 5, R) Clutch Hydraulic Circuits (Applied In 3rd & 5th Gear)
GF0043982Courtesy of FORD MOTOR CO.

When the direct (3, 5, R) clutch is released in 1st, 2nd, 4th and 6th gear, C35R SUPPLY pressure is supplied to the direct (3, 5, R) clutch regulator valve. Solenoid pressure is not applied to the direct (3, 5, R) clutch regulator valve and the regulator valve blocks the C35R SUPPLY circuit in this position.

Fig 3: Identifying Direct (3, 5, R) Clutch Hydraulic Circuits (Released In 1st, 2nd, 4th & 6th Gear)
GF0043983Courtesy of FORD MOTOR CO.