Ford Mustang Service Manual: Diagnostics

Transmission Description (Description and Operation)

The 4R70W has the following features:

  • Wide ratio gears
  • Four speeds
  • Rear wheel drive
  • Automatic
  • Electronic shift
  • Torque converter clutch control
  • Line pressure controls

The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.

4R70W Automatic Transmission

Identification Tags


    Torque Converter Diagnosis
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque conver ...

    Output State Control (OSC) Mode
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque conver ...

    Other materials:

    Audible warnings and indicators
    Key In Ignition Warning Chime Sounds when the key is left in the ignition in the off or accessory position and the drivers door is opened. Keyless Warning Alert (If Equipped) Sounds when the keyless vehicle is in RUN and the drivers door is opened. Hea ...

    Transmission (Disassembly)
    Manual Transmission The T5OD 5-speed transmission: fifth speed gear functions as an overdrive gear. forward gears are synchronized and helical cut. shift interlock system prevents the engagement of more than one gear. Transmission, Manual Five-S ...

    Principles of Operation
    Principles of Operation The vehicle has two module communications networks. The standard corporate protocol (SCP) which is an unshielded twisted pair cable (data bus plus, Circuit 914 [TN/OG] and data bus minus, Circuit 915 [PK/LB]), and the internation ...