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:

    Accelerator Cable - Supercharged Engine
    Removal and Installation 1. Push the accelerator cable nylon bushing out of the accelerator pedal and shaft arm. 2. Disconnect the accelerator cable from the throttle cam. 3. Depress the tabs and disconnect the accelerator cable from the bracket. 4. Rel ...

    Output State Control (OSC) Mode
    Output State Control (OSC) allows the technician to take control of certain parameters to function the transmission. For example, OSC allows the technician to shift the transmission only when he/she commands a gear change. If the technician commands ...

    Negative and Positive Camber
    Camber is the vertical tilt of the wheel (1007) when viewed from the front. Camber can be positive or negative and has a direct effect on tire wear. Caster Item Part Number Description 1 - Positive caster 2 - True vertical ...