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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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Cadillac Models Covered & Key Technical Specifications

Models: 2000 Cadillac DeVille, 2000 Cadillac Eldorado, 2000 Cadillac Seville
Sub-models / Variants: 4.6L
Build Years: 2000
Technical Data:

  • Transaxle model: Hydra-Matic 4T80-E (RPO HM1)
  • Transmission type: 4-speed automatic
  • Fluid type: Dexron-III
  • Refill capacity: 12.6 Qts. (12.0 L)
  • Dry fill capacity: 15.0 Qts. (14.2 L)
  • Final drive end play: .006–.026 inches (.15–.65 mm)
  • Line pressure range: 90–300 psi (6.2–20.7 kg/cm²)
  • Gear ratios: 1st 2.960:1, 2nd 1.626:1, 3rd 1.000:1, 4th 0.681:1, Reverse 2.130:1
Technical Specifications
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Document Number / Seller:
27797 / Jerry Brown
File Size:
652.58 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Car
Last updated / verified
Aug 4, 2025

Cadillac Manual Features & Content Preview

2000 Cadillac DeVille Hydra-Matic 4T80-E Transmission Documentation

  • Covers 2000 Cadillac DeVille, Eldorado, and Seville models equipped with the 4.6L engine and Hydra-Matic 4T80-E (RPO HM1) 4-speed automatic transaxle
  • Original OEM publication 2000 Automatic Transmissions Hydra-Matic 4T80-E Overhaul, published 2000
  • Contains 4 detailed component diagrams, a comprehensive gear ratio table, and specific transaxle identification charts
  • Downloads to your account within seconds of checkout
  • Your order stays downloadable from your account for life
  • Indexed PDF search covers every chapter and appendix
  • Full-text search finds any part number in seconds
  • This 2000 first edition is the primary source for the 4T80-E transmission overhaul, documenting the specific hydraulic, electronic, and mechanical configuration used in the 4.6L Cadillac powertrain

Component and Diagnostic Scope

The 2000 Cadillac DeVille transmission manual details the complex internal architecture of the Hydra-Matic 4T80-E. Chapters explore the interaction between the 3-element hydraulic torque converter and the sprocket-driven link assembly. The text outlines the operational role of the primary, secondary, and scavenge pumps, along with the integration of shift solenoids, pressure control force motors, and input/output speed sensors within the powertrain control environment.

Specification and Performance Data

The 2000 Cadillac DeVille Hydra-Matic 4T80-E manual includes refined specifications for shop-floor reference. Fluid capacities are documented at 12.6 Qts. for refill and 15.0 Qts. for dry fill. Final drive end play is specified at.006–.026 inches in the tolerance charts. Line pressure is officially documented as boosted to 90–300 psi in reverse gear operations. A detailed shift speed chart provides reference values for TPS-based engagement points across all forward gears. This official 100-page OEM factory manual documents the 2000 Cadillac DeVille, Eldorado, and Seville transmission overhaul procedures, including system diagnostics, hydraulic pressure testing, and mechanical component breakdown for the 4T80-E transaxle build.

Manual FAQ, Purchase & Download Details

Can I find fastener tightening specifications within this document? keyboard_arrow_down

Specification tables and component sections include references for various fastener tightening values used during assembly.

Which specific electrical systems and components are covered in the detailed manual chapters? keyboard_arrow_down

Manual covers the Supplemental Inflatable Restraint system including the Sensing and Diagnostic Module, air bag modules, and impact sensors. It also contains diagrams and location references for these key electrical components.

What information does the manual include regarding the recommended tools and special test equipment for the 2000 Buick LeSabre air bag system? keyboard_arrow_down

Manual contains a dedicated table listing recommended tools such as connector adapters, scan tools, and deployment harnesses. These references assist in locating the specific equipment identified by the manufacturer for the system. Additional diagrams provide visual context for the tools and their relevant application points.

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