Ford Mustang (1999-2004) Service Manual: 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

4R70W Automatic Transmission

    Automatic Transaxle/Transmission
    General Specifications a - MERCON V is not interchangeable at this time with the current MERCON fluids. Check the transmission fluid level indicator to determine the correct fluid and refer to the ...

    Identification Tags
    All vehicles are equipped with a Vehicle Certification Label, located on the driver side door lock post. For correct transmission identification, refer to the code in the space marked TR. ...

    Other materials:

    Principles of Operation
    There are four main principles involved with the basic theory of operation: heat transfer latent heat of vaporization relative humidity effects of pressure Heat Transfer If two substances of different temperature are placed near each other, t ...

    Torque Converter Diagnosis
    Prior to the installation of a new or remanufactured torque converter, all diagnostic procedures must be followed. This is to prevent the unnecessary installation of torque converters. Only after a complete diagnostic evaluation can the decision be m ...

    Power windows
    WARNING: Do not leave children unattended in your vehicle and do not let children play with the power windows. They may seriously injure themselves. WARNING: When closing the power windows, you should verify they are free of obstructions and make sure that chi ...