Ford Mustang (1993-2004) Service Manual: Transmission Fluid Cooler

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


    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 ...

    Diagnosis By Symptom
    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:

    Component Tests
    Bearing Whine Bearing whine is a high-pitched sound similar to a whistle. It is usually caused by worn/damaged pinion bearings, which are operating at driveshaft speed. Bearing noise occurs at all driving speeds. This distinguishes it from gear whine which ...

    Camshaft End Play - OHC Engines
    Engine (Diagnosis and Testing) Special Tool(s) Commercially Available Leakdown Tester Quick Disconnect Compression Tester 134-R0212 or equivalent Dial Indicator Gauge Adapter 303-007 (TOOL-6565-AB) or equivalent Di ...

    Principles of Operation
    Principles of Operation Key-In-Ignition Warning Chime The key-in-ignition warning chime activates when the generic electronic module (GEM) detects the ignition switch circuits are in the OFF or ACC states and when the GEM detects the driver door is a ...