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

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:
Transmission Fluid Cooler
CAUTION: Whenever a transmission has been disassembled to install
new parts, the
cooler bypass valve (CBV), all transmission fluid coolers (in tank and
auxiliary) and
transmission fluid cooler lines must be cleaned and backflushed. Use a
suitable the t ...
Output Shaft Speed (OSS) Sensor
Removal and Installation
1. With the vehicle in NEUTRAL, raise and support the vehicle.
2. Disconnect the electrical connector.
3. Remove the output shaft speed (OSS) sensor.
4. To install, reverse the removal procedure. ...
Charging System (Description and Operation)
The charging system is a negative ground system consisting of the
following:
generator
internal voltage regulator
charging system warning indicator
storage battery
necessary wiring and cables
The generator is belt-driven by the engine ...
