Ford Mustang (1999-2004) Service Manual: Transmission Draining and Filling
Material
| Item | Specification |
| DEXRON III (ATF) Transmission Fluid XT-2-QDX | DEXRON III |
1. Remove the drain plug and drain the transmission.
- Position a suitable drain pan under the transmission.

2. Clean and install the drain plug.
3. NOTE: Before removing, clean the area around the filler plug.
Remove the filler plug.

4. Using a suitable oil suction gun, fill the transmission to the correct level with the specified fluid.
- Transmission capacity is 3.9 liters (4.1 quarts).

5. Install the filler plug.
Manual Transmission
The T56 six-speed manual transmission features the following:
six forward speeds and one reverse speed.
forward gears are synchronized and helical cut.
a reverse gear operates through a constant-m ...
Transmission (Removal)
1. Remove the gearshift lever knob.
2. Remove the console panel gearshift plate. Disconnect the cigar lighter
electrical connector, then
lift the gearshift lever boot over the gearshift lever.
3. ...
Other materials:
Spark Plug - Inspection
1. Inspect the spark plug for a bridged gap.
Check for deposit build-up closing the gap between the electrodes.
Deposits are caused
by oil or carbon fouling.
Clean the spark plug.
2. Check for oil fouling.
Check for wet, black deposits on th ...
Transmission Electronic Control System
The powertrain control module (PCM) and its input/output network
control the following transmission
operations:
Shift timing
Line pressure (shift feel)
Torque converter clutch
The transmission control is separate from the engine control s ...
Special Operating Condition Requirements
When towing a trailer or using a camper or car-top carrier:
Change engine oil and install a new oil filter every 4,800 km (3,000
miles) or 3 months.
Change transfer case fluid every 96,000 km (60,000 miles).
Change manual transmission fluid as required.
...
