Transaxle Component and System Description

TRANSAXLE COMPONENT AND SYSTEM DESCRIPTION





The 4T40-E transaxle consists primarily of the following components.

Mechanical
- Torque converter with TCC
- Drive link assembly
- Five multiple disk clutch assemblies: 2nd, Reverse, Direct, Coast and Forward
- Two friction bands: Intermediate/4th band and Lo/Reverse band
- Three one-way clutches: two roller clutches (2nd and Lo) and one sprag clutch
- Two planetary gear sets: Input and Reaction
- Final drive and differential assembly
- One control valve assembly
- One vane-type oil pump

Electronic
- Pressure Control Solenoid Valve (PC Sol. Valve)
- Two shift solenoids: 1-2 and 2-3
- TCC solenoid valve
- Two speed sensors: A/T ISS and A/T VSS
- Fluid temperature sensor
- Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
- Wiring harness assembly