Cadillac CTS 2003-2007 5.7L Engine Specifications
Explore detailed technical specifications for the 5.7L engine in the 2003-2007 Cadillac CTS. Ideal for maintenance, repairs, and performance upgrades, this guide covers horsepower, torque, fuel system, and more.
Overview Specifications
This document provides detailed specifications and technical information about the 5.7L engine used in the 2003-2007 Cadillac CTS. It is designed to assist enthusiasts, mechanics, and owners in understanding the engine's features, performance, and maintenance requirements. Use the search and navigation tips to quickly find the information you need. The document is divided into sections covering engine design, performance, and maintenance, with subsections offering specific details.
How to Use
Use the search function by entering keywords related to the 5.7L engine, such as 'horsepower' or 'fuel system.' This will highlight relevant sections and subsections for quick access.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is labeled clearly, and subsections provide detailed points for easy reference.
Key Specifications
Displacement
5.7 L (346 cu in)
Horsepower
350 hp @ 5600 RPM
Torque
365 lb-ft @ 4000 RPM
Fuel Economy
15 mpg city / 22 mpg highway
Acceleration (0-60 mph)
5.5 seconds
Available Specifications
Engine Design
This section covers the fundamental design aspects of the 5.7L engine, including its architecture, components, and manufacturing details. Learn about the engine's construction, materials used, and key features that contribute to its performance and durability.
Engine Design
This section covers the fundamental design aspects of the 5.7L engine, including its architecture, components, and manufacturing details. Learn about the engine's construction, materials used, and key features that contribute to its performance and durability.
Architecture
- V8 configuration for balanced power delivery
- Cast iron engine block for durability
- Aluminum cylinder heads for reduced weight
- Overhead valve (OHV) design for simplicity and reliability
- Displacement of 5.7 liters (346 cubic inches)
- Bore and stroke dimensions of 3.90 in x 3.62 in
Components
- Forged steel crankshaft for strength
- Hydraulic roller lifters for smooth operation
- High-flow intake manifold for improved airflow
- Sequential fuel injection for precise fuel delivery
- Dual exhaust system for enhanced performance
- Electronic throttle control for responsiveness
Performance
Explore the performance characteristics of the 5.7L engine, including horsepower, torque, and acceleration. This section also highlights the engine's fuel efficiency and emissions compliance, making it a versatile choice for the Cadillac CTS.
Performance
Explore the performance characteristics of the 5.7L engine, including horsepower, torque, and acceleration. This section also highlights the engine's fuel efficiency and emissions compliance, making it a versatile choice for the Cadillac CTS.
Power Output
- Maximum horsepower of 350 hp at 5600 RPM
- Peak torque of 365 lb-ft at 4000 RPM
- 0-60 mph acceleration in approximately 5.5 seconds
- Top speed of 150 mph (electronically limited)
- High-performance camshaft for aggressive power curve
- Dual exhaust system for improved exhaust flow
Efficiency and Emissions
- Fuel economy of 15 mpg city / 22 mpg highway
- Meets EPA Tier 2 emissions standards
- Electronic fuel injection for optimal combustion
- Air-to-fuel ratio optimized for performance and efficiency
- Catalytic converters for reduced emissions
- Onboard diagnostics (OBD-II) for emissions monitoring
Maintenance
This section provides essential maintenance tips and guidelines for the 5.7L engine. Learn about recommended service intervals, common issues, and best practices to ensure the engine's longevity and optimal performance.
Maintenance
This section provides essential maintenance tips and guidelines for the 5.7L engine. Learn about recommended service intervals, common issues, and best practices to ensure the engine's longevity and optimal performance.
Service Intervals
- Oil change every 3,000 miles or 3 months
- Spark plug replacement every 30,000 miles
- Air filter inspection every 15,000 miles
- Coolant flush every 50,000 miles
- Timing chain inspection every 60,000 miles
- Belt and hose inspection every 30,000 miles
Common Issues
- Check for oil leaks around gaskets and seals
- Monitor for coolant leaks in the radiator
- Inspect for worn spark plugs or ignition coils
- Listen for unusual engine noises indicating valve issues
- Check for reduced power or misfires
- Ensure proper functioning of the electronic throttle control
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Engine Specifications
Overview
- Type
- V8
- Configuration
- Longitudinal
- Platform
- GM LS6
- Material
- Aluminum block and heads
- Location
- Front engine, rear-wheel drive
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 29.1 inches (739 mm)
- Height
- 27.3 inches (693 mm)
- Weight
- 415 lbs (188 kg)
- Displacement
- 346 cubic inches (5.7 liters)
- Bore
- 3.898 inches (99 mm)
- Stroke
- 3.622 inches (92 mm)
Materials
- Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Connecting Rods
- Forged powdered metal
Features
- Performance
-
- 400 horsepower @ 6000 rpm
- 395 lb-ft torque @ 4800 rpm
- electronic throttle control
- high-flow cylinder heads
- Fuel System
-
- Sequential fuel injection
- 58 psi fuel pressure
- returnless fuel system
- Ignition
-
- Coil-near-plug ignition
- iridium spark plugs
- 8mm high-performance spark plug wires
- Cooling
-
- High-capacity radiator
- dual electric fans
- coolant recovery system
- Lubrication
-
- Dry-sump oil system
- high-pressure oil pump
- oil cooler
Safety Features
- Engine Protection
-
- Knock sensor system
- low oil pressure warning
- Thermal Management
-
- High-temperature coolant
- engine overheat protection
- Electrical Safety
-
- Short circuit protection
- overcurrent protection
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- isolated engine mounts
- Vibration Control
-
- Balanced crankshaft
- harmonic damper
- Climate Control
-
- Auxiliary engine heater
- quick warm-up system
Accessories
- Engine Bay
-
- Polished valve covers
- chrome oil cap
- custom air intake
- Performance
-
- High-flow air filter
- performance exhaust headers
- upgraded ignition coils
- Maintenance
-
- Oil change kit
- spark plug replacement kit
- coolant flush kit
Maintenance
- Service interval
- Every 5,000 miles or 6 months
- Service Items
-
- Oil and filter change
- spark plug inspection
- coolant level check
- belt tension inspection
- air filter replacement
- Maintenance Notes
- Use synthetic oil for optimal performance
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 100,000Years: 5Coverage: Engine and transmission
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Rust perforation
- Emissions
- Miles: 50,000Years: 2Coverage: Emission control components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision CNC machining
- automated assembly line
- laser alignment
- Quality Control
- Tolerance Check: ±0.001 inchesPressure Test: 200 psiLeak Test: 100% tested
- Sustainability Practices
-
- Recycled aluminum usage
- low-emission manufacturing
- waste reduction programs
- Production Metrics
- Annual Production: 50,000 unitsDefect Rate: 0.1%Energy Efficiency: 95%
Service Information for 5.7l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- spark plug inspection
- coolant level check
- belt tension inspection
- air filter replacement
Use synthetic oil for optimal performance
- Fuel system cleaning
- throttle body inspection
- ignition system check
- coolant flush
- engine mounts inspection
Check for any leaks or unusual noises
- Spark plug replacement
- fuel filter replacement
- timing chain inspection
- engine compression test
- cooling system pressure test
Replace all gaskets and seals if necessary
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 5.7L engine in the 2003-2007 Cadillac CTS?
What are the technical specifications of the 5.7L engine in the 2003-2007 Cadillac CTS?
The 5.7L V8 engine in the 2003-2007 Cadillac CTS produces 400 horsepower at 6,000 rpm and 395 lb-ft of torque at 4,600 rpm. It features a cast aluminum block and heads, overhead valves, and a 10.5:1 compression ratio. The engine is compatible with premium unleaded gasoline and has a fuel capacity of approximately 18 gallons. It is paired with a 6-speed manual or 6-speed automatic transmission.
Q2 What maintenance is required for the 5.7L engine?
What maintenance is required for the 5.7L engine?
Regular maintenance for the 5.7L engine includes oil changes every 5,000-7,500 miles using synthetic oil, tire rotations every 7,500 miles, and spark plug replacements every 100,000 miles. The air filter should be replaced every 15,000-30,000 miles, and the fuel filter every 30,000 miles. It is also recommended to check coolant, brake, and transmission fluids regularly. Refer to the owner's manual for detailed schedules.
Q3 How do I replace the air filter in the 5.7L engine?
How do I replace the air filter in the 5.7L engine?
To replace the air filter, locate the air filter housing on the driver's side of the engine compartment. Open the housing by releasing the clips or screws, depending on the model year. Remove the old air filter and inspect the housing for debris. Install the new air filter, ensuring it is properly seated and aligned. Close the housing and secure it with the clips or screws. Start the engine and listen for any unusual noises to ensure proper installation.
Q4 How do I troubleshoot common issues with the 5.7L engine?
How do I troubleshoot common issues with the 5.7L engine?
Common issues with the 5.7L engine include rough idling, decreased performance, or check engine light illumination. Start by scanning for trouble codes using an OBD-II scanner. Check the air filter for cleanliness, inspect the spark plugs for wear, and ensure proper fuel pressure. If the issue persists, consult a mechanic to diagnose problems with the fuel injectors, ignition coils, or sensor malfunctions.
Q5 How can I optimize the performance of the 5.7L engine?
How can I optimize the performance of the 5.7L engine?
Optimize performance by ensuring regular maintenance, such as tuning the engine, replacing the air filter with a high-performance unit, and upgrading the exhaust system. Consider installing a cold air intake to improve airflow and a performance chip or tune to enhance engine calibration. Additionally, using high-octane fuel can improve power delivery and reduce engine knock. Always follow manufacturer guidelines and consult a professional for modifications.
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 5.7L V8 Engine Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 5.7L V8 engine.
Technical Bulletin: 5.7L Engine Updates
Coming SoonOfficial updates and technical bulletins for the 5.7L engine, including recalls and service notifications.
Cadillac CTS Parts Catalog
Coming SoonDetailed catalog of genuine and aftermarket parts for the 2003-2007 Cadillac CTS with the 5.7L engine.
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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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