Ford Mustang Service Manual: Special Testing Procedures

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


    Pinpoint Tests - OSC Equipped Vehicles
    Transmission Description (Description and Operation) The 4R70W has the following features: Wide ratio gears Four speeds Rear wheel drive Automatic Electronic shift Torque conver ...

    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 conver ...

    Other materials:

    Fuel quality
    Note: Use of any fuel other than those recommended may cause powertrain damage and a loss of vehicle performance; repairs may not be covered under warranty. Choosing the Right Fuel Use only unleaded fuel or unleaded fuel blended with a maximum of 15% ethan ...

    Torque Converter End Play Check
    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 ...

    Instrument Cluster and Panel Illumination
    The instrument cluster and panel illumination system illuminates the following components: instrument cluster (10849) audio unit (18806) A/C-heater control fog lamp switch transmission range indicator traction control switch rear window defrost contro ...