2000 Cadillac DeVille Automatic Transmissions Hydra-Matic 4T80-E Overhaul Manual
Service information, repair procedures, and troubleshooting for the 2000 Cadillac DeVille with Hydra-Matic 4T80-E transmission. Covers overhaul.
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2000 Cadillac DeVille (2000) - Hydra-Matic 4T80-E Overhaul | Automatic Transmissions Binder Covers Hydra-Matic 4T80-E overhaul with detailed component breakdown and repair procedures.
- Designated Volume Data: 12.6 Qts. (12.0 L) is the refill capacity for the transmission fluid.
- Primary Charge Quantity: 15.0 Qts. (14.2 L) signifies the dry fill capacity for the transmission.
- Advanced End Play: .006-.026" (.15-.65 mm) is the specified range for the final drive end play.
- Defined Cooling Specs: Oil cooler flushing requires a mixture of clean solvent and water for effective cleaning.
- Key Mass Specs: The Hydra-Matic 4T80-E is a 4-speed automatic unit with a 3-element hydraulic torque converter.
- Essential Twist Specifications: Torque converter must be replaced if evidence of overheating (Blue Color) is present.
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Professional Troubleshooting Factory Manual: Cadillac DeVille 2000 Automatic Transmissions Hydra-Matic 4T80-E Overhaul
Application: DeVille (K) 4.6L // Procedure-Type: Overhaul / Component-Focus: Automatic Transmissions Logic // Component-Focus: Specifications
| TRANSAXLE GEAR RATIOS | Gear Range | Gear Ratio |
|---|---|---|
| 1st | 2.960:1 | |
| 2nd | 1.626:1 | |
| 3rd | 1.000:1 | |
| 4th | 0.681:1 | |
| Reverse | 2.130:1 |
Technical units are distributed across various sections to provide a complete understanding of the Hydra-Matic 4T80-E transmission. This manual details the application of automatic transaxle components, including gear ratios and fluid capacities, essential for proper maintenance and repair.
Description & Operation
This section outlines the fundamental design and function of the Hydra-Matic 4T80-E transaxle, a 4-speed automatic unit. It details the hydraulic torque converter, the multi-disc clutches, roller clutch, sprag clutches, planetary gear sets, and final drive assemblies.
Lubrication
Details the recommended Dexron-III transmission fluid and provides fluid capacities for refill and dry fill, crucial for maintaining the transmission's lubrication system.
On-Vehicle Service
This part of the manual covers components that can be serviced without removing the transaxle, such as the case side cover, cooler lines, and output shaft.
Troubleshooting
Provides preliminary inspection steps, diagnostic trouble codes (DTCs), and symptom-based diagnosis for common issues like oil contamination, pressure problems, and engagement issues.
Clutch & Band Applications
This section details which clutches and bands are engaged for each selector lever position, offering insight into the transmission's internal operation.
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