Cadillac STS 2005-2011 3.6L Engine Specifications
Explore the detailed 3.6L engine specifications for the 2005-2011 Cadillac STS. This guide covers horsepower, torque, fuel system, and emission standards, ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 3.6L engine used in the 2005-2011 Cadillac STS. It is designed to help users understand the engine's features, performance, and maintenance requirements. Use the search functionality to quickly locate specific details or navigate through the sections to explore comprehensive information about the engine. Whether you're a mechanic, car enthusiast, or owner, this guide offers valuable insights into the 3.6L engine.
How to Use
Use the search bar to enter keywords related to the engine specifications or features. This will filter the content and display relevant sections or subsections instantly.
Scroll through the document to explore major sections. Click on a section title to expand it and view its subsections. Use the table of contents for quick access to specific areas of interest.
Key Specifications
Horsepower
302 hp
Torque
272 lb-ft
Displacement
3.6 liters
Fuel Efficiency
20 MPG combined
Acceleration
6.5 seconds (0-60 mph)
Available Specifications
Engine Performance
This section covers the performance characteristics of the 3.6L engine, including horsepower, torque, and acceleration. It also highlights the engine's fuel efficiency and overall driving experience.
Engine Performance
This section covers the performance characteristics of the 3.6L engine, including horsepower, torque, and acceleration. It also highlights the engine's fuel efficiency and overall driving experience.
Power Output
- Horsepower: 302 hp
- Torque: 272 lb-ft
- RPM range: 6300 rpm
- Acceleration: 0-60 mph in 6.5 seconds
Fuel Efficiency
- City MPG: 17
- Highway MPG: 26
- Combined MPG: 20
- Fuel type: Premium recommended
Engine Design
This section delves into the design and construction of the 3.6L engine, including its layout, materials, and key components. It also explains the engineering innovations that enhance its performance and durability.
Engine Design
This section delves into the design and construction of the 3.6L engine, including its layout, materials, and key components. It also explains the engineering innovations that enhance its performance and durability.
Construction
- Engine type: V6
- Displacement: 3.6 liters
- Cylinder arrangement: 60-degree V
- Block material: Aluminum
Key Components
- Valvetrain: DOHC with VVT
- Fuel injection: Direct injection
- Cooling system: Liquid-cooled
- Exhaust system: Dual exhaust
Maintenance and Service
This section provides essential information on maintaining and servicing the 3.6L engine. It includes recommended service intervals, common issues, and tips for ensuring optimal engine performance.
Maintenance and Service
This section provides essential information on maintaining and servicing the 3.6L engine. It includes recommended service intervals, common issues, and tips for ensuring optimal engine performance.
Service Intervals
- Oil change: Every 7,500 miles
- Spark plug replacement: Every 100,000 miles
- Air filter replacement: Every 30,000 miles
- Coolant flush: Every 150,000 miles
Common Issues
- Timing chain wear
- Oil leaks
- Carbon buildup in intake valves
- Coolant system leaks
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Engine Specifications
Overview
- Type
- V6
- Configuration
- 60-degree
- Platform
- GM High Feature
- Material
- Aluminum block and heads
- Location
- Front longitudinal
Dimensions
- Length
- 24.8 inches (630mm)
- Width
- 22.0 inches (559mm)
- Height
- 27.6 inches (701mm)
- Displacement
- 3.6 liters (3564cc)
- Bore
- 3.7 inches (94mm)
- Stroke
- 3.37 inches (85.6mm)
- Compression Ratio
- 10.2:1
- Weight
- 348 lbs (158kg)
Materials
- Engine Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Connecting Rods
- Forged steel
Features
- Fuel System
-
- Direct injection
- Sequential multi-port injection
- Electronic throttle control
- Ignition System
-
- Coil-on-plug ignition
- Waste spark system
- Electronic spark timing
- Cooling System
-
- Electric cooling fan
- Cross-flow radiator
- Thermostatically controlled
- Lubrication System
-
- Wet sump oiling
- Oil cooler
- Oil level sensor
- Emissions Control
-
- Catalytic converters
- EGR system
- EVAP system
- O2 sensors
Safety Features
- Engine Protection
-
- Low oil pressure shutdown
- Over-temperature protection
- Electronic limp-home mode
- Fire Prevention
-
- Fuel cut-off inertia switch
- Firewall insulation
- Fuel line safety valves
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Tuned intake silencer
- Vibration Control
-
- Balancer shafts
- Dual-mass flywheel
- Isolated accessory drive
Accessories
- Belts And Pulleys
-
- Serpentine belt
- Tensioner pulley
- Idler pulley
- Hoses And Clamps
-
- Coolant hoses
- Heater hoses
- Vacuum hoses
- Filters
-
- Oil filter
- Air filter
- Fuel filter
Maintenance
- Service interval
- 7500 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Coolant system check
- Belt tension check
- Maintenance Notes
- Use synthetic oil for best performance and longevity
Warranty
- Bumper To Bumper
- Miles: 36000Years: 3Coverage: Comprehensive
- Powertrain
- Miles: 100000Years: 5Coverage: Major components
- Corrosion
- Miles: 100000Years: 6Coverage: Perforation only
- Emissions
- Miles: 80000Years: 8Coverage: EPA required components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision casting
- CNC machining
- Robotic assembly
- Quality Control
- Dimensional Check: Laser scanningLeak Test: Pressure and vacuumPerformance Test: Dynamometer run-in
- Sustainability Practices
-
- Recycled aluminum
- Energy efficient manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Day: 500Defect Rate: 0.5%Energy Usage: 15 kWh per unit
Service Information for 3.6l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect air filter
- Check coolant level
- Inspect drive belts
- Check engine for leaks
Use only GM approved synthetic oil
- Replace air filter
- Inspect spark plugs
- Check fuel system
- Inspect PCV valve
- Test cooling system
May require special tools for plug replacement
- Replace timing chain
- Inspect water pump
- Replace engine mounts
- Flush cooling system
- Perform compression test
Timing chain replacement is critical at this interval
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 3.6L engine in the 2005-2011 Cadillac STS?
What are the technical specifications of the 3.6L engine in the 2005-2011 Cadillac STS?
The 3.6L engine in the 2005-2011 Cadillac STS is a V6 engine with a displacement of 3564 cc. It produces 255-320 horsepower depending on the model year and configuration, with a torque output of 254-273 lb-ft. The engine features a dual-overhead camshaft design, variable valve timing, and a multi-point fuel injection system. It is compatible with regular unleaded gasoline and has a fuel capacity of approximately 18 gallons.
Q2 What are the recommended maintenance requirements for the 3.6L engine?
What are the recommended maintenance requirements for the 3.6L engine?
Regular maintenance for the 3.6L engine includes oil changes every 5,000 to 7,500 miles using synthetic oil meeting GM standards. The engine coolant should be replaced every 50,000 miles, and the transmission fluid should be changed every 30,000 miles. Spark plugs should be replaced every 100,000 miles, and the air filter should be replaced every 15,000 to 30,000 miles. Tire pressure should be checked monthly, and the brake system should be inspected annually.
Q3 How do I replace the air filter or spark plugs in the 3.6L engine?
How do I replace the air filter or spark plugs in the 3.6L engine?
To replace the air filter, locate the air filter housing on the driver's side of the engine compartment. Release the clips, remove the housing, and pull out the old filter. Insert the new filter, ensuring it is properly seated, and reattach the housing. For spark plugs, remove the ignition coil packs, then use a spark plug socket to remove the plugs. Install the new plugs, tighten them to 15-20 ft-lbs, and reattach the coil packs.
Q4 What are common issues with the 3.6L engine and how can I troubleshoot them?
What are common issues with the 3.6L engine and how can I troubleshoot them?
Common issues include oil leaks from the valve cover gasket, which can be identified by oil spots under the vehicle. Another issue is faulty fuel injectors, which may cause misfires. Use an OBD-II scanner to identify trouble codes. If the engine overheats, check the coolant level and radiator for blockages. For reduced power, inspect the throttle body and mass airflow sensor for cleanliness.
Q5 How can I optimize the performance of the 3.6L engine?
How can I optimize the performance of the 3.6L engine?
Optimize performance by ensuring proper maintenance, such as regular oil changes and filter replacements. Consider upgrading to a high-flow air filter and cat-back exhaust system for improved airflow. Tuning the engine with a performance chip can enhance horsepower and torque. Additionally, using high-octane fuel can improve engine efficiency and reduce knock or pinging.
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 STS 3.6L Engine Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 3.6L engine.
Technical Service Bulletin - Engine Performance Update
Coming SoonDetails updates and fixes for common engine performance issues, including software updates and part replacements.
Cadillac STS Parts and Accessories Catalog
Coming SoonCatalog of genuine GM parts and accessories for the 3.6L engine, including filters, belts, and performance upgrades.
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.