Ford Mustang (1999-2004) Service Manual: Shift Patterns

Upshifts

Transmission upshifting is controlled by the powertrain control module (PCM). The PCM receives inputs from various engine or vehicle sensors and driver demands to control shift scheduling, shift feel and torque converter clutch (TCC) operation.

Downshifts

Under certain conditions the transmission will downshift automatically to a lower gear range (without moving the gearshift lever). There are three categories of automatic downshifts; Coastdown, Torque Demand and Forced or Kickdown shifts.

Coastdown

The coastdown downshift occurs when the vehicle is coasting down to a stop.

Torque Demand

The torque demand downshift occurs (automatically) during part throttle acceleration when the demand for torque is greater than the engine can provide at that gear ratio. If applied, the transmission will disengage the TCC to provide added acceleration.

Kickdown

For maximum acceleration, the driver can force a downshift by pressing the accelerator pedal to the floor. A forced downshift into a lower gear is possible below calibrated speeds. Specifications for downshift speeds are subject to variations due to tire size, engine and transmission calibration requirements.

Disassembled Views

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

 

4R70W Automatic Transmission - Disassembled View

 

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

4R70W Automatic Transmission - Disassembled View

Bushings, Bearing and Thrust Washer Locator

Bushings, Bearing and Thrust Washer Locator

 

Bushings, Bearing and Thrust Washer Locator

Bushings, Bearing and Thrust Washer Locator

Seals, Rings and Gasket Locator

Seals, Rings and Gasket Locator

 

Seals, Rings and Gasket Locator

Seals, Rings and Gasket Locator

Main Components and Functions

Transmission Main Components - Sectional View

Transmission Main Components - Sectional View

 

Transmission Main Components - Sectional View

    Range Selection
    The transmission has six range positions: P, R, N, (D), 2 and 1. Park In the PARK position: there is no powerflow through the transmission. the parking pawl locks the output shaft to the ...

    Torque Converter (Description and Operation)
    The torque converter transmits and multiplies torque. The torque converter is a four-element device: impeller assembly turbine assembly reactor assembly clutch and damper assembly ...

    Other materials:

    Front End Body Panels
    Torque Specifications Front End Body Panels The front end body panel components consist of the following: air deflectors cowl grille fenders fender splash shields hood hood hinges hood weatherstrip radiator grille opening panel ...

    Fuel Charging and Controls
    The fuel injection supply manifold (9F792): delivers fuel to the fuel injector. receives fuel from the fuel supply line. The throttle body: controls air supply to the upper intake manifold by positioning the throttle plate. connects the accelerator ca ...

    Inspection and Verification
    WARNING: Never remove the pressure relief cap while the engine is operating or when the cooling system is hot. Failure to follow these instructions can result in damage to the cooling system or engine or personal injury. To avoid having scalding hot coolant ...