Cadillac CTS 2003-2007 Fuel System Specifications
Discover the complete fuel specifications for the 2003-2007 Cadillac CTS, including fuel type, tank capacity, economy, and octane rating. This guide is essential for maintaining optimal performance and efficiency.
Overview Specifications
This document provides detailed fuel specifications and related information for the 2003-2007 Cadillac CTS. It is designed to assist owners, mechanics, and enthusiasts in understanding the fuel requirements, efficiency, and performance of the vehicle. The content is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use the search and navigation instructions to find specific details quickly and efficiently.
How to Use
Use the search functionality to locate specific terms or phrases within the document. Enter keywords related to fuel type, efficiency, or performance to find relevant sections and details.
Navigate through the document using the section titles and descriptions. Each section is organized into subsections with detailed points. Use the quick reference guide for a summary of key specifications.
Key Specifications
Fuel Type
Premium unleaded
Octane Rating
91 (R+M)/2
Fuel Tank Capacity
17.5 gallons
City MPG
17-18 mpg
Highway MPG
24-26 mpg
Available Specifications
Fuel Requirements
This section outlines the type of fuel recommended for the 2003-2007 Cadillac CTS, including octane ratings and any specific additives or treatments that may be beneficial. It also covers the fuel tank capacity and any restrictions on fuel types.
Fuel Requirements
This section outlines the type of fuel recommended for the 2003-2007 Cadillac CTS, including octane ratings and any specific additives or treatments that may be beneficial. It also covers the fuel tank capacity and any restrictions on fuel types.
Fuel Type and Octane Rating
- Recommended fuel type: Premium unleaded gasoline
- Minimum octane rating: 91 (R+M)/2
- Alternative octane rating: 87 (R+M)/2 with reduced performance
- Avoid using E85 or diesel fuels
- Use of fuel additives for cleaning injectors is optional
Fuel Tank Capacity
- Total fuel tank capacity: 17.5 gallons (66.2 liters)
- Reserve fuel capacity: Approximately 2.5 gallons (9.5 liters)
- Fuel gauge accuracy: +/- 2% under normal conditions
- Fuel filler neck design: Standard unleaded gasoline nozzle
Fuel Efficiency
This section provides information on the fuel efficiency of the 2003-2007 Cadillac CTS, including EPA estimates and real-world driving conditions. It also covers factors that can affect fuel economy and tips for improving efficiency.
Fuel Efficiency
This section provides information on the fuel efficiency of the 2003-2007 Cadillac CTS, including EPA estimates and real-world driving conditions. It also covers factors that can affect fuel economy and tips for improving efficiency.
EPA Fuel Economy Estimates
- City driving: 17-18 mpg
- Highway driving: 24-26 mpg
- Combined city/highway: 20-21 mpg
- Actual mileage may vary based on driving habits
Factors Affecting Fuel Efficiency
- Driving style: Aggressive driving reduces efficiency
- Vehicle load: Extra weight decreases fuel economy
- Tire pressure: Underinflated tires increase fuel consumption
- Maintenance: Regular servicing improves efficiency
Fuel System Components
This section details the key components of the fuel system in the 2003-2007 Cadillac CTS, including the fuel pump, injectors, and filters. It also covers maintenance schedules and common issues related to the fuel system.
Fuel System Components
This section details the key components of the fuel system in the 2003-2007 Cadillac CTS, including the fuel pump, injectors, and filters. It also covers maintenance schedules and common issues related to the fuel system.
Fuel Pump and Injectors
- Fuel pump type: Electric, in-tank design
- Fuel injector type: Sequential multi-port fuel injection
- Fuel injector flow rate: 24 lbs/hr @ 43.5 psi
- Fuel pressure: 55-62 psi
Fuel Filter and Maintenance
- Fuel filter location: In-line, near the fuel tank
- Recommended replacement interval: Every 30,000 miles
- Signs of a clogged filter: Poor engine performance, hesitation
- Fuel system cleaning: Recommended every 15,000 miles
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Component Specifications
Overview
- Type
- Gasoline
- Configuration
- V6 and V8 engines
- Platform
- GM Sigma platform
- Material
- Steel fuel tank
- Location
- Underbody, rear axle
Dimensions
- Fuel Tank Capacity
- 17.5 gallons (66.2 liters)
- Fuel Line Length
- 12 feet (3.66 meters)
- Fuel Pump Pressure
- 58 psi (400 kPa)
- Fuel Filter Diameter
- 3.5 inches (8.89 cm)
- Fuel injector Flow Rate
- 24 lb/hr (10.89 kg/hr)
- Fuel Tank Weight
- 15 lbs (6.8 kg)
- Fuel Line Diameter
- 0.375 inches (9.53 mm)
Materials
- Fuel Tank
- High-density polyethylene
- Fuel Lines
- Nylon with rubber coating
- Fuel Pump
- Stainless steel with plastic housing
- Fuel Filter
- Cellulose and resin
- Fuel injectors
- Aluminum with stainless steel internals
Features
- Fuel Delivery
-
- Electronic fuel injection
- Sequential multi-port fuel injection
- High-pressure fuel pump
- Fuel Management
-
- Onboard diagnostics (OBD-II)
- Fuel economy optimization
- Real-time fuel monitoring
- Fuel Storage
-
- Impact-resistant fuel tank
- Vapor recovery system
- Rollover valve
- Fuel Filtration
-
- High-efficiency fuel filter
- Water separation
- Easy-access filter housing
- Fuel Safety
-
- Fuel cutoff switch
- Leak detection system
- Fire suppression design
Safety Features
- Crash Protection
-
- Fuel tank impact shields
- Automatic fuel shutoff
- Fire Prevention
-
- Flame arrestor in fuel tank
- Heat-resistant fuel lines
- Emission Control
-
- Evaporative emissions system
- Catalytic converter fuel management
Comfort Features
- Fueling Ease
-
- Easy-access fuel filler
- Automatic fuel door release
- Fuel Economy
-
- Optimized fuel consumption
- Eco-driving mode
- Noise Reduction
-
- Quiet fuel pump operation
- Vibration-dampened fuel lines
- User Convenience
-
- Low fuel warning system
- Trip computer with fuel range
Accessories
- Performance
-
- High-flow fuel injectors
- Performance fuel pump
- Upgraded fuel pressure regulator
- Maintenance
-
- Fuel system cleaner
- Fuel filter replacement kit
- Fuel pressure tester
- Safety
-
- Fuel tank skid plate
- Fuel line protector
- Fuel additive stabilizer
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fuel filter replacement
- Fuel system inspection
- Fuel injector cleaning
- Fuel tank inspection
- Fuel pump performance check
- Maintenance Notes
- Use only premium unleaded gasoline for optimal performance
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Fuel system components
- Powertrain Warranty
- Miles: 100,000Years: 5Coverage: Fuel pump and injectors
- Emissions Warranty
- Miles: 50,000Years: 4Coverage: Fuel system emissions components
- Corrosion Warranty
- Miles: 100,000Years: 6Coverage: Fuel tank corrosion
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Injection molding for fuel tank
- Precision machining for fuel injectors
- Robotic assembly for fuel pump
- Quality Control
- Pressure Testing: Fuel tank and linesLeak Testing: Fuel system componentsPerformance Testing: Fuel pump and injectors
- Sustainability Practices
-
- Recycled materials in fuel tank
- Low-emission manufacturing
- Recyclable fuel system components
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.01%Production Time: 2 hours per unit
Service Information for fuel Service
Maintenance and service requirements specific to this component
- Replace fuel filter
- Inspect fuel lines for leaks
- Check fuel pump pressure
- Clean fuel injectors
- Inspect fuel tank for damage
Use only manufacturer-approved parts
- Replace fuel pump if necessary
- Inspect fuel tank for corrosion
- Check fuel system for contamination
- Test fuel pressure regulator
- Inspect fuel filler neck
Perform comprehensive fuel system diagnostics
- Replace fuel injectors
- Replace fuel pump assembly
- Flush fuel system
- Inspect and replace fuel lines if necessary
- Test fuel system for leaks
Consider upgrading to high-performance components
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the fuel capacity and recommended fuel type for the 2003-2007 Cadillac CTS?
What is the fuel capacity and recommended fuel type for the 2003-2007 Cadillac CTS?
The 2003-2007 Cadillac CTS has a fuel tank capacity of approximately 17.5 gallons (66 liters). The recommended fuel type is regular unleaded gasoline with an octane rating of 87. However, for optimal performance, especially in vehicles equipped with the 3.6L V6 engine, using mid-grade or premium fuel (91 octane) is suggested. Always refer to the owner's manual for specific recommendations.
Q2 What is the recommended maintenance schedule for the fuel system?
What is the recommended maintenance schedule for the fuel system?
Regular maintenance of the fuel system includes inspecting fuel lines and connections every 12,000 miles, replacing the fuel filter every 15,000-30,000 miles, and cleaning the fuel injectors every 30,000 miles. Additionally, the fuel cap should be checked for tightness and replaced if damaged. Always follow the maintenance schedule outlined in the owner's manual for optimal performance and longevity.
Q3 How do I replace the fuel filter on my Cadillac CTS?
How do I replace the fuel filter on my Cadillac CTS?
To replace the fuel filter, start by relieving the fuel system pressure using the procedure outlined in the service manual. Locate the fuel filter, typically found along the fuel line near the fuel tank. Disconnect the fuel lines using a fuel line wrench, then remove the filter. Install the new filter by hand-tightening it in the correct direction (arrow on the filter points toward the engine). Reconnect the fuel lines and start the engine to check for leaks. Properly dispose of the old filter.
Q4 What are common issues with the fuel system and how can I troubleshoot them?
What are common issues with the fuel system and how can I troubleshoot them?
Common issues include poor fuel pressure, clogged fuel injectors, or a faulty fuel sensor. Symptoms may include difficulty starting the engine, rough idling, or reduced fuel efficiency. Use a code reader to check for trouble codes if the 'Check Engine' light is on. Inspect the fuel filter and lines for blockages or leaks. Consult a professional if the issue persists after basic troubleshooting steps.
Q5 How can I optimize the performance of my Cadillac CTS's fuel system?
How can I optimize the performance of my Cadillac CTS's fuel system?
Optimize performance by using high-quality fuel, regularly cleaning fuel injectors, and ensuring the air filter is clean. Upgrading to a high-flow fuel filter or aftermarket fuel injectors can also improve fuel flow and engine performance. Additionally, maintaining proper tire pressure and driving habits can enhance fuel efficiency. Always follow manufacturer specifications when modifying or upgrading components.
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 Service Manual (2003-2007)
Coming SoonComprehensive guide covering diagnostics, repairs, and maintenance procedures for the Cadillac CTS fuel system.
Technical Service Bulletin - Fuel System Updates
Coming SoonOfficial updates and bulletins from General Motors regarding fuel system improvements and recalls.
Cadillac CTS Parts Catalog
Coming SoonDetailed catalog of genuine GM parts for the Cadillac CTS fuel system, including filters, injectors, and hoses.
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