Ford Mustang Service Manual: 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 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


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

    Diagnostics
    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:

    Trunk release
    The remote trunk release button is located on the center console. Press the button to unlatch the trunk. Interior Trunk Control Lockout (Convertible Vehicles Only) This feature disables the interior trunk control. It helps prevent unauthorized access t ...

    Pinpoint Tests
    Inspection and Verification WARNING: When servicing starter motor or carrying out other underhood work in the vicinity of the starter motor, be aware that the heavy gauge battery input lead at the starter solenoid is "electrically hot" at all times. A protec ...

    Leakage Inspection
    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 transm ...