Description

The 4R44E has the following features:
- Four forward speeds.
- Electronic shift, pressure, and torque converter clutch controls.
- Three compound planetary gearsets.
- Three bands.
- Three multi-plate clutches.
- Two one-way clutches.

All hydraulic functions are directed by electronic solenoids to control:
- Engagement feel.
- Shift feel.
- Shift scheduling.
- Modulated Torque Converter Clutch (TCC) applications.
- Timing of the 3-2 torque demand and kickdown shifts.
- Engine braking (with O/D canceled) utilizing the coast clutch.
- Manual 1st timing.