Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Transmission and Drivetrain » Automatic Transmission/Transaxle » Description and Operation » Automatic Transmission » Main Components and Functions  
 
 
  Main Components and Functions  
 

Main Components and Functions

Torque Converter

  

Torque Converter Exploded View
The torque converter couples the engine to the turbine shaft in the transmission. The torque converter transmits the driving force from the engine through the use of fluid. The torque converter assembly houses the turbine hub, turbine, stator, impeller, and the torque converter clutch piston.

Torque Converter - Clutch
The torque converter clutch (TCC) couples the turbine hub and the turbine shaft spline. During lockup, the TCC slides on the turbine hub and is pressed against the converter cover. The engine force is transmitted to the transmission with no fluid slippage within the torque converter.

Geartrain
Turbine Shaft
The turbine shaft connects the torque converter to the transmission geartrain. The turbine shaft is hollow to allow the oil pump shaft to run through it. The turbine shaft splines to the turbine inside the torque converter and the reverse clutch drum and the direct clutch cylinder.

Differential
The differential uses an open-type design that provides operation in the following ways:

  • Both drive axles rotate with transmitted torque at the same speed when the vehicle is moving forward.
  • Each drive axle rotates with the transmitted torque at a different speed when the vehicle is cornering.
  • If one drive axle is stationary, the other axle rotates with transmitted torque.