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:
Starting a gasoline engine
When you start the engine, the idle speed increases, this helps to warm
up the engine. If the engine idle speed does not slow down automatically,
have your vehicle checked by an authorized dealer.
Before starting the engine:
• Make sure all occupants have f ...
Removal
WARNING: Do not smoke, carry lighted tobacco or an open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ignited, possibly resulting in personal injury.
WARNING: Fuel supply lines ...
Valve Springs
Special Tool(s)
Compressor, Valve Spring
303-163 (T81P-6513-A)
Material
Removal
1. Remove the LH and the RH valve covers. For additional information,
refer to Valve Cover-LH
and Valve Cover RH in this section.
2. Rotate the crankshaft un ...
