Ford 4R44E/4R55E – Automatic Transmission Service Group
Ford 4R44E/4R55E – Automatic Transmission Service Group PDF free online
The Ford 4R44E / 4R55E is a fully electronic controlled, four speed, rear wheel drive transmission. At first glance it resembles the familiar A4LD transmission. The shift timing, shift feel, line pressure and TCC are all computer controlled in the 4R44E/4R55E transmissions. There are three compound planetary gearsets, three bands, three multi-disc clutch packs and two one-way freewheel assemblies.
This manual covers the procedures necessary for inspection, teardown and assembly to properly diagnos, repair and overhaul this transmission, along with the basic Diagnostic Trouble Codes. The ATSG PASS books cover the diagnosing of the electronic controls.
- GENERAL DESCRIPTION
- VEHICLE APPLICATION
- BEARINGS, BUSHINGS AND THRUST WASHERS
- ELECTRONICS AND SENSORS
- DIAGNOSIS AND TESTING
- VALVE BODY
- CLUTCH DRUMS
- PLANETARY ASSEMBLY
- TORQUE CONVERTER CHECKS
- TRANSMISSION RE-ASSEMBLY