GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2005
🢒
DeVille
🢒
Transmission/Transaxle
🢒 Automatic Transaxle - 4T80-E
Transmission/Transaxle
All Component Locator
Automatic Transmission Electronic Component Views
Component Location
Disassembled Views
Fluid Passages
All Description and Operation
Manual First Gear
Manual Second Gear
Manual Third Gear
Neutral - Engine Running
Overdrive Range, 4-3 Downshift
Overdrive Range, First Gear
Overdrive Range, Fourth Gear
Overdrive Range, Fourth Gear - Torque Converter Clutch Applied
Overdrive Range, Second Gear
Overdrive Range, Third Gear
Park - Engine Running
Reverse
All Special Tools and Equipment
Special Tools
Cleaning, Inspection, and Adjustment
Accumulator Housing Disassemble
Assembly End Play Measurement
Case Cover/Turbine Shaft Seal Replacement
Case Extension Install/Final Drive End Play Check
Case Inspection
Clutch Air Check
Control Valve Lower Body Disassemble
Driven Sprocket Support Assemble
Final Drive Carrier Inspect
Final Drive End Play Measurement
Input Shaft End Play Measurement
Second Clutch Plates Installation
Disassembly, Overhaul, Repair, and Assembly
3rd Clutch Plate Assembly and Reaction Carrier Disassemble
4th Band and Third Clutch/Reaction Shell Removal
4th Band Installation
Accumulator Housing Assemble
Auxiliary Control Valve Body Assembly Installation
Auxiliary Control Valve Body Cover, Fluid Filter Seal, and Filter Removal
Axle Seals Replacement
Case Cover Assembly Installation
Case Cover Removal
Case Extension and Scavenge Pipe Removal
Channel Plate Assemble
Control Valve Lower Body Assemble
Control Valve Lower Body Disassemble
Control Valve Upper Body Assemble
Control Valve Upper Body Disassemble
Differential Carrier and Housing Removal
Differential Carrier Overhaul
Drive Sprocket Support and Seal Replacement
Drive/Driven Sprocket and Chain Removal
Driven Sprocket Support Disassemble
DriveSprocket, Driven Sprocket, and Drive Link and Assemble
Final Drive Carrier, Sun and Internal Gear Removal
Final Drive Carrier/Differential Carrier Install
Final Drive Internal Gear and Snap Ring Installation
Fluid Pan, Gasket, and Transfer Oil Pump Inlet Screen Removal
Forward and Coast Clutch Assembly Overhaul
Forward and Coast Clutch Installation
Forward Clutch Plate Assembly and Low and Reverse Band Removal
Forward Clutch Support Stud Installation
Fourth Servo Overhaul
Fourth Servo Removal
Holding Fixture Installation
Input Speed Sensor and Wiring Harness Removal
Low/Reverse Band and Fretting Ring Installation
Lower Control Valve Body and Internal Mode Switch Installation
Lower Control Valve Body Assembly Removal
Lower Controls Assembly Installation
Manual Link and Wire Harness Connection
Manual Shift Detent Lever with Manual Shift Shaft Assembly Removal
Oil Filter and Side Cover Install
Oil Pump, Upper Control Valve Assembly Removal
Output Shaft Installation
Output Shaft Removal
Park Pawl Removal
Parking Pawl and Pivot Pin Install
Pump Assemble
Pump Disassemble
Pump Installation
Reaction Carrier/Shell and Third Clutch Installation
Reverse Clutch Housing and Second Sprag Assemble
Reverse Clutch Housing and Second Sprag Disassemble
Reverse Clutch Housing Installation
Scavenge Pipe Installation
Scavenge Screens/Seals, Bottom Pan Installation
Second Clutch Plates and Reverse Clutch Removal
Secondary Pump Assemble
Secondary Pump Disassemble
Temperature Sensor, Torque Converter Clutch Solenoid Valve, and Pressure Control Solenoid Valve Assemble
Third Clutch and Reaction Carrier Assemble
Thrust Bearings Installation
Torque Converter and Oil Pump Drive Shaft Install
Torque Converter and Oil Pump Drive Shaft Removal
Vehicle Speed Sensor and Transmission Fluid Cooler Pipe Fitting Installation
Vehicle Speed Sensor and Transmission Fluid Cooler Pipe Fitting Removal
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
Fluid Capacity Specifications