Cadillac CTS 2003-2007 5L40 Transmission Specifications
This document provides a comprehensive overview of the 5L40 transmission specifications for the 2003-2007 Cadillac CTS. It includes detailed technical data such as gear ratios, torque capacity, fluid type, and service intervals. The purpose of this guide is to assist vehicle owners, technicians, and enthusiasts in understanding the transmission's performance characteristics, maintenance requirements, and compatibility with the Cadillac CTS of this generation. By providing accurate and detailed information, this document serves as a valuable resource for routine maintenance, diagnostics, and performance upgrades. Whether you're looking to ensure optimal transmission performance or planning a repair, this guide offers the insights needed to make informed decisions.
Overview Specifications
This document provides detailed specifications and technical information about the 5L40-E transmission used in the 2003-2007 Cadillac CTS. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance capabilities. Use the search and navigation instructions to quickly locate specific details, or refer to the quick reference section for key specifications at a glance.
How to Use
Use the search function to find specific terms or phrases within the document. Enter keywords related to the 5L40-E transmission, such as 'gear ratios' or 'fluid capacity', to locate relevant sections instantly.
Navigate through the document using the section titles and subsections. Each major section is organized by topic, and subsections provide detailed points for quick reference. Use the table of contents or scroll to find the desired information.
Key Specifications
Transmission Type
5-speed automatic
Gear Ratios
3.42 to 0.75
Fluid Capacity
7.4 quarts
Torque Capacity
330 lb-ft
Service Interval
50,000 miles
Available Specifications
General Specifications
This section covers the basic specifications of the 5L40-E transmission, including its design, manufacturing details, and primary features. It provides a foundational understanding of the transmission's capabilities and intended use.
General Specifications
This section covers the basic specifications of the 5L40-E transmission, including its design, manufacturing details, and primary features. It provides a foundational understanding of the transmission's capabilities and intended use.
Design and Manufacturing
- Produced by General Motors
- 5-speed automatic transmission
- Rear-wheel drive configuration
- Electronically controlled with adaptive learning
- Designed for mid-size luxury vehicles
- Aluminum alloy case for reduced weight
Primary Features
- Wide gear ratio spread for improved performance
- Integrated torque converter with lockup clutch
- Electronic shift control for smooth transitions
- Adaptive shift scheduling based on driving conditions
- Durable construction for long-term reliability
- Compatible with various engine outputs
Performance and Gear Ratios
This section details the performance characteristics and gear ratios of the 5L40-E transmission. It highlights how the transmission optimizes power delivery and fuel efficiency across different driving scenarios.
Performance and Gear Ratios
This section details the performance characteristics and gear ratios of the 5L40-E transmission. It highlights how the transmission optimizes power delivery and fuel efficiency across different driving scenarios.
Gear Ratios
- First gear: 3.42:1
- Second gear: 2.21:1
- Third gear: 1.43:1
- Fourth gear: 1.00:1
- Fifth gear: 0.75:1
- Reverse gear: 2.07:1
Performance Characteristics
- Smooth and responsive shifting
- Optimized for both city and highway driving
- Supports up to 330 lb-ft of torque
- Enhances fuel efficiency with overdrive gear
- Adaptive shift logic for sporty or relaxed driving
- Low noise and vibration levels
Maintenance and Fluid Requirements
This section provides essential information on maintaining the 5L40-E transmission, including fluid type, capacity, and recommended service intervals. Proper maintenance ensures longevity and optimal performance.
Maintenance and Fluid Requirements
This section provides essential information on maintaining the 5L40-E transmission, including fluid type, capacity, and recommended service intervals. Proper maintenance ensures longevity and optimal performance.
Fluid Specifications
- Required fluid: Dexron VI automatic transmission fluid
- Total fluid capacity: 7.4 quarts (7.0 liters)
- Fluid change interval: Every 50,000 miles
- Use of incorrect fluid can cause damage
- Fluid level check procedure included in owner's manual
- Fluid temperature monitoring via electronic control
Service Recommendations
- Regular inspection of transmission seals and gaskets
- Monitor for leaks or unusual noises
- Replace transmission filter during fluid changes
- Reset adaptive shift strategy after service
- Consult a certified technician for major repairs
- Use OEM parts for replacements
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- Longitudinal
- Platform
- GM Sigma
- Material
- Aluminum alloy
- Location
- Rear-wheel drive
- Production Years
- 2003-2007
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 22.1 inches (561 mm)
- Height
- 18.3 inches (465 mm)
- Weight
- 185 lbs (83.9 kg)
- input Shaft Length
- 11.8 inches (300 mm)
- Output Shaft Length
- 14.2 inches (360 mm)
- Oil Capacity
- 7.5 quarts (7.1 liters)
Materials
- Housing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Plates
- Composite friction material
- Seals
- Viton rubber
- Sensors
- Plastic and copper
Features
- Transmission Control
-
- Electronic shift control
- Adaptive shift programming
- Manual shift mode
- Performance
-
- 5 forward gears
- Wide gear ratio spread
- Smooth shift quality
- Cooling
-
- Integrated transmission cooler
- Thermostatically controlled
- External cooler compatibility
- Diagnostics
-
- On-board diagnostics (OBD-II)
- Self-learning capability
- Fault code storage
- Durability
-
- High-strength components
- Sealed for life bearings
- Corrosion-resistant coatings
Safety Features
- Fail Safe
-
- Limp-home mode
- Transmission temperature warning
- Protection
-
- Overheat protection
- Overpressure relief
Comfort Features
- Noise Reduction
-
- Precision gear machining
- Vibration dampening
- Shift Quality
-
- Smooth torque converter lockup
- Adaptive shift timing
Accessories
- Transmission Fluid
-
- Dexron VI
- Synthetic blend
- High-temperature formula
- Filters
-
- Replaceable filter element
- Magnetic drain plug
- Mounts
-
- Rubber isolators
- Reinforced brackets
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter change
- Seal inspection
- Solenoid testing
- Shift linkage adjustment
- Mount inspection
- Maintenance Notes
- Use only specified transmission fluid for optimal performance and longevity.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Federal Emissions
- Miles: 80,000Years: 8Coverage: Emission-related components
- Warranty Terms
- Transferable to subsequent owners, excludes wear items.
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting
- Machining
- Heat treatment
- Assembly
- Quality Control
- inspection: 100% component testingTesting: Dyno and road simulationCertifications: ISO 9001
- Sustainability Practices
-
- Recycled materials
- Energy-efficient manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Year: 150,000Defect Rate: 0.05%Lead Time: 4 weeks
Service Information for 5l40 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter change
- Seal and gasket inspection
- Solenoid operation test
- Shift linkage adjustment
- Mount and bracket inspection
Use only Dexron VI transmission fluid for optimal performance.
- Transmission flush
- Complete seal inspection
- Solenoid replacement if necessary
- Torque converter inspection
- Transmission cooler check
Special tools required for solenoid replacement.
- Complete transmission overhaul
- Clutch pack replacement
- Bearing and bushing inspection
- Valve body cleaning
- Shift quality testing
Critical to inspect for wear and tear at this interval.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 5L40 transmission?
What are the technical specifications of the 5L40 transmission?
The 5L40 transmission is a 5-speed automatic transmission designed for longitudinal engine applications. It features a torque converter with electronic controls, a planetary gearset, and an advanced clutch system. Compatible with rear-wheel-drive vehicles, it supports engines producing up to 300 horsepower and 280 lb-ft of torque. It was used in the 2003-2007 Cadillac CTS with the 3.6L V6 engine.
Q2 What maintenance is required for the 5L40 transmission?
What maintenance is required for the 5L40 transmission?
Regular maintenance includes fluid changes every 30,000-60,000 miles using GM-approved ATF. Inspect the transmission pan annually for leaks and replace the filter every 30,000 miles. Check the cooling lines for damage and ensure proper transmission mounts. Consult the owner's manual for specific schedules.
Q3 How do I install or replace the 5L40 transmission?
How do I install or replace the 5L40 transmission?
Begin by draining the transmission fluid. Disconnect electrical connectors and coolers, then remove the crossmember and mounts. Carefully lift the transmission out. Install the new unit by reversing the steps, ensuring all connectors are secure. Refill with the recommended fluid and test drive the vehicle.
Q4 How do I troubleshoot common issues with the 5L40 transmission?
How do I troubleshoot common issues with the 5L40 transmission?
Symptoms like slipping gears or erratic shifting can indicate low fluid levels or solenoid issues. Use an OBD-II scanner to check for error codes. Inspect the fluid for contamination and perform a transmission fluid pressure test if necessary. Consult a professional if issues persist.
Q5 How can I optimize the performance of the 5L40 transmission?
How can I optimize the performance of the 5L40 transmission?
Use high-performance transmission fluid for better thermal stability. Consider reflashing the TCM for enhanced shift patterns. Installing an aftermarket cooler can improve durability under heavy loads. However, modifications should be done by professionals to avoid damage.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Cadillac CTS 5L40 Transmission Service Manual
Coming SoonDetailed procedures for maintenance, repair, and troubleshooting.
GM Technical Bulletin: 5L40 Updates
Coming SoonOfficial updates and recommendations for transmission performance.
5L40 Transmission Parts Catalog
Coming SoonList of compatible parts and accessories.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
Intellectual Property
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.