Forward (1, 2, 3, 4) Clutch Hydraulic Circuits

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

To apply the forward (1, 2, 3, 4) clutch, the manual valve must be in the NEUTRAL, DRIVE, M, 2 or 1 position to provide line pressure to the forward (1, 2, 3, 4) clutch regulator valve through the D432 and FCPF circuits.

Shift Solenoid A (SSA) provides regulated pressure from the SF hydraulic circuit to the forward (1, 2, 3, 4) clutch regulator and latch valves through the PC1 and PC1Z hydraulic circuits to position the valves to apply the forward (1, 2, 3, 4) clutch. As the forward (1, 2, 3, 4) clutch regulator valve moves, it opens the FCPF hydraulic circuit to the C1234 circuit to supply regulated line pressure to the forward (1, 2, 3, 4) clutch cylinder. For controlled forward (1, 2, 3, 4) clutch engagement, the forward (1, 2, 3, 4) clutch latch valve directs the regulated line pressure from the C1234 circuit to the opposite side of the forward (1, 2, 3, 4) clutch regulator valve through the C1234FB circuit.

The forward (1, 2, 3, 4) clutch is applied in 1st, 2nd, 3rd and 4th gear.