Cadillac STS 2005-2011 6L50 Transmission Specifications
This document provides detailed specifications for the 6L50 transmission used in the 2005-2011 Cadillac STS. The 6L50 is a 6-speed automatic transmission designed for enhanced performance and fuel efficiency. This guide covers essential technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. It also includes information on common issues, troubleshooting tips, and compatibility with other models. Whether you're a mechanic, enthusiast, or owner, this resource offers valuable insights into maintaining, repairing, and optimizing the 6L50 transmission. Understanding these specifications will help ensure the longevity and reliability of your Cadillac STS, making this a must-read for anyone involved in its care.
Overview Specifications
This document provides detailed specifications and technical information about the 6L50 transmission used in the 2005-2011 Cadillac STS. It is designed to assist automotive enthusiasts, technicians, and engineers in understanding the transmission's features, maintenance requirements, and performance capabilities. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications.
How to Use
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Navigate through the document using the table of contents or by scrolling through sections. Each major section is clearly labeled, and subsections are organized for easy access to detailed information.
Key Specifications
Transmission Type
6-speed automatic
Maximum Torque
332 lb-ft
Fluid Type
Dexron VI
Mounting Configuration
Longitudinal
Weight
187 lbs
Available Specifications
General Specifications
This section covers the basic specifications of the 6L50 transmission, including its design, configuration, and primary features. It provides an overview of the transmission's capabilities and its compatibility with the Cadillac STS.
General Specifications
This section covers the basic specifications of the 6L50 transmission, including its design, configuration, and primary features. It provides an overview of the transmission's capabilities and its compatibility with the Cadillac STS.
Design and Configuration
- 6-speed automatic transmission
- Longitudinal mounting configuration
- Hydraulic control system
- Electronic shift control
- Torque converter with lock-up clutch
- Aluminum alloy casing
Primary Features
- Adaptive shift control
- Manual shift mode
- Wide gear ratio spread
- Enhanced fuel efficiency
- Smooth and responsive shifts
- Durable construction for high-performance applications
Performance and Capabilities
This section focuses on the performance characteristics of the 6L50 transmission, including its torque handling, shift quality, and overall driving experience. It also highlights the transmission's ability to enhance the Cadillac STS's performance.
Performance and Capabilities
This section focuses on the performance characteristics of the 6L50 transmission, including its torque handling, shift quality, and overall driving experience. It also highlights the transmission's ability to enhance the Cadillac STS's performance.
Torque Handling
- Maximum torque capacity of 332 lb-ft
- Optimized for V6 and V8 engines
- Robust internal components
- Efficient power transfer
- Smooth torque delivery
- Enhanced durability under heavy loads
Shift Quality
- Precise and quick gear changes
- Adaptive learning for driver behavior
- Reduced shift shock
- Consistent performance in various conditions
- Improved acceleration response
- Enhanced driving comfort
Maintenance and Service
This section provides essential information on maintaining and servicing the 6L50 transmission. It includes guidelines for fluid changes, common issues, and tips for ensuring long-term reliability.
Maintenance and Service
This section provides essential information on maintaining and servicing the 6L50 transmission. It includes guidelines for fluid changes, common issues, and tips for ensuring long-term reliability.
Fluid Requirements
- Use of Dexron VI automatic transmission fluid
- Recommended fluid change intervals
- Proper fluid level checks
- Importance of using OEM-specified fluid
- Signs of fluid degradation
- Procedure for fluid replacement
Common Issues and Troubleshooting
- Shift solenoid failures
- Transmission fluid leaks
- Delayed or harsh shifting
- Diagnostic trouble codes (DTCs)
- Inspection and repair procedures
- Preventive maintenance tips
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 6-speed longitudinal
- Platform
- GM RWD/AWD
- Material
- Aluminum casing
- Location
- Rear-wheel drive configuration
Dimensions
- Length
- 27.5 inches (698.5 mm)
- Width
- 23.6 inches (599.4 mm)
- Height
- 15.7 inches (398.8 mm)
- Weight
- 187 lbs (84.8 kg)
- input Shaft Diameter
- 1.1 inches (27.9 mm)
- Output Shaft Diameter
- 1.3 inches (33.0 mm)
- Fluid Capacity
- 12 quarts (11.4 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutches
- Composite friction material
- Seals
- Viton rubber
Features
- Performance
-
- Adaptive shift control
- Sport mode
- Manual shift capability
- Efficiency
-
- Wide gear ratio spread
- Reduced internal friction
- Optimized torque converter
- Durability
-
- Enhanced cooling system
- Robust gear design
- High-strength materials
- Technology
-
- Electronic precision shift
- Integrated control module
- Diagnostic capabilities
- Comfort
-
- Smooth shift transitions
- Noise reduction design
- Adaptive learning
Safety Features
- Protection
-
- Overheat protection
- Overload detection
- Fail-safe mode
- Monitoring
-
- Real-time diagnostics
- Fluid level sensor
- Shift position sensor
Comfort Features
- Driving
-
- Seamless gear changes
- Reduced vibration
- Quiet operation
- Adjustment
-
- Driver-selectable modes
- Adaptive shift points
- Customizable settings
Accessories
- installation
-
- Mounting brackets
- Transmission crossmember
- Driveshaft adapter
- Maintenance
-
- Filter kit
- Gasket set
- Fluid pump
- Upgrades
-
- Performance clutch packs
- Enhanced cooler kit
- Shift improvement module
Maintenance
- Service interval
- Every 50,000 miles or 48 months
- Service Items
-
- Fluid and filter change
- Pan gasket replacement
- Seal inspection
- Shift linkage adjustment
- Diagnostic scan
- Maintenance Notes
- Use only Dexron VI transmission fluid. Perform diagnostics after service.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission components
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Quality testing
- Quality Control
- inspection: 100% component testingTesting: Durability testing, Performance validation, Leak testing
- Sustainability Practices
-
- Recycled materials
- Energy-efficient manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Year: 150,000Defect Rate: Less than 0.1%Lead Time: 4 weeks
Service Information for 6l50 transmission Service
Maintenance and service requirements specific to this component
- Inspect transmission fluid level
- Check for leaks
- Inspect shift linkage
- Perform diagnostic scan
Ensure fluid level is within specified range.
- Replace transmission fluid and filter
- Replace pan gasket
- Inspect seals and gaskets
- Adjust shift linkage
Use only Dexron VI transmission fluid.
- Perform complete fluid flush
- Replace clutch packs if necessary
- Inspect and replace worn components
- Perform full diagnostic and performance test
Major service may require specialized tools and equipment.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6L50 transmission in the 2005-2011 Cadillac STS?
What are the technical specifications of the 6L50 transmission in the 2005-2011 Cadillac STS?
The 6L50 transmission is a 6-speed automatic transmission designed for longitudinal engine applications. It features a torque capacity of up to 280 lb-ft and is compatible with engines such as the 3.6L V6 and 4.6L Northstar V8. It includes features like clutch-to-clutch shifting, an electronic limited-slip differential, and adaptive shift controls. Compatibility extends to rear-wheel-drive and all-wheel-drive configurations, with a maximum engine speed of 7,000 RPM.
Q2 What are the maintenance requirements for the 6L50 transmission?
What are the maintenance requirements for the 6L50 transmission?
Regular maintenance for the 6L50 transmission includes fluid changes every 30,000 to 60,000 miles using GM-approved synthetic transmission fluid (Part No. 12345349). The transmission pan gasket and filter should be replaced during each fluid change. Every 15,000 miles, inspect the fluid level and condition, and check for any signs of leaks or wear on the pan gasket and seals. Additionally, ensure proper operation of the transmission cooler and lines to prevent overheating.
Q3 How do I install or replace the 6L50 transmission?
How do I install or replace the 6L50 transmission?
To replace the 6L50 transmission, start by raising the vehicle and draining the transmission fluid. Disconnect the negative battery terminal and remove the driveshaft. Disconnect electrical connectors and cooler lines from the transmission. Remove the transmission mounts and crossmember, then lower the transmission using a transmission jack. Once removed, inspect and clean the mating surfaces before installing the new transmission. Reverse the steps to install, ensuring all connections are secure and fluid is refilled to the recommended level.
Q4 How do I troubleshoot common issues with the 6L50 transmission?
How do I troubleshoot common issues with the 6L50 transmission?
Common issues with the 6L50 transmission include slipping, erratic shifting, or the transmission not engaging gears properly. Start by checking the transmission fluid level and condition, as low or degraded fluid can cause these symptoms. Use a scan tool to check for any stored trouble codes in the TCM (Transmission Control Module). Inspect the transmission pan for signs of leaks and ensure all electrical connections are secure. If issues persist, consider replacing the transmission filter and pan gasket or consulting a professional for further diagnosis.
Q5 How can I optimize the performance of the 6L50 transmission?
How can I optimize the performance of the 6L50 transmission?
To optimize the performance of the 6L50 transmission, ensure proper fluid levels and use high-quality synthetic transmission fluid. Avoid extreme temperatures by ensuring the transmission cooler is functioning properly. Drive in a manner that avoids excessive heat buildup, such as frequent stop-and-go traffic or heavy towing without proper cooling. Consider upgrading to a high-capacity transmission pan for increased fluid capacity and improved heat dissipation. Avoid aggressive acceleration and deceleration to reduce wear on the clutch packs and bands.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
GM Service Manual - 6L50 Transmission
Coming SoonComprehensive service manual covering repair, maintenance, and troubleshooting procedures for the 6L50 transmission.
GM Technical Bulletin - 6L50 Transmission Updates
Coming SoonOfficial technical bulletin detailing updates, repairs, and improvements for the 6L50 transmission.
GM Parts Catalog - 6L50 Transmission
Coming SoonCatalog of genuine GM parts and accessories for the 6L50 transmission, including filters, gaskets, and seals.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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