Vehicle Segment:
Rear-wheel-drive, V8-powered performance coupe
Target Audience:
Enthusiast owners seeking to perform maintenance, repairs, and modifications on their Pontiac GTO.
Key Competitors During Era:
Ford Mustang GT, Chevrolet Camaro SS (later years), Dodge Charger (later years), Nissan 350Z, Mitsubishi 3000GT VR-4 (earlier).
Engine Options:
Powerful LS1 (5.7L) and LS2 (6.0L) V8 engines derived from GM's renowned LS engine family.
Drivetrain:
Rear-wheel-drive configuration, contributing to its sports car driving dynamics.
Heritage:
Revival of the iconic Pontiac GTO nameplate, aiming to capture the spirit of the original muscle car era with modern performance.
Comprehensive Coverage:
Provides in-depth technical information essential for maintaining and repairing all major systems of the vehicle, empowering owners with the knowledge previously only available to dealerships.
Systems And Components Covered:
Airbags, Antilock Brakes (ABS), Automatic Transmission, Clutch, Cruise Control, Defogger, Disc Brakes, Doors, Drive Belts, Electrical Components, Emissions, Engine Cooling, Engine Electrical, Engine Exhaust, Entertainment Systems, Exterior Trim, Frame/Underbody, Front Suspension, Fuses, Gages, Horn, HVAC (Heating, Ventilation, Air Conditioning), Hydraulic Brakes, Interior Trim, Keyless Entry, Lighting, Manual Transmission, Parking Brake, Power Steering, Rear Drive Axle, Rear Suspension, Seats, Service Reminder Lights, Shift Lock Control, Steering Column, Universal Joints, Wheel Drive Shafts, Wiring Harnesses, 5.7L LS1 Engine, 6.0L LS2 Engine
Procedures Included:
Overhaul (Automatic & Manual Transmissions), Computer Relearn Procedures, Maintenance Procedures, Troubleshooting, Component Repair, Electrical Diagnosis, Diagnostic Code Interpretation
Estimated Page Count:
Likely over 2000 pages (typical for comprehensive factory service manuals, though not explicitly stated in product info)
Type:
Factory Service Manual / Repair Manual
Digital Compatibility:
Windows (XP, ME, 98, NT, 2000, Vista 32/64, 7, 8), Mac, Tablet, Phone
Powertrain:
5.7L LS1 V8, 6.0L LS2 V8, Automatic Transmission (4L60E/4L65E), Manual Transmission (Tremec T-56 6-speed), Clutch System, Fuel System, Exhaust System, Cooling System, Engine Electrical and Mechanical Components
Chassis:
Front & Rear Suspension (Independent), Brakes (ABS, Disc), Steering System (Power), Drivetrain (Rear Wheel Drive), Wheels & Tires
Electrical And Body:
Complete Wiring Diagrams, Lighting System, Gages & Instrumentation, HVAC, Power Accessories (Windows, Locks, Seats), Airbags, Security System, Keyless Entry, Entertainment System, Body Control Modules, Exterior & Interior Trim, Doors, Frame & Underbody
Engine Repair And Rebuild:
Detailed disassembly, inspection, and reassembly procedures for both 5.7L and 6.0L LS series engines, including torque specifications, clearances, and component identification.
Transmission Service:
Overhaul procedures for the 4L60E/4L65E automatic transmission and the Tremec T-56 6-speed manual transmission, including component replacement, hydraulic circuit testing, and clutch assembly procedures.
Electrical Diagnostics:
Systematic troubleshooting guides, wiring diagrams with component locators, fuse and relay identification, and procedures for diagnosing various electrical faults.
Maintenance And Scheduled Service:
Recommended maintenance intervals, fluid type and capacity specifications, filter replacement procedures, and belt replacement guides.
Computer Systems:
Procedures for relearning various electronic modules after replacement or service, including engine control modules (ECM) and transmission control modules (TCM).
Diagnostic Capabilities:
Advanced diagnostic strategies using GM's Tech II scanner, including live data interpretation, bidirectional control, and system-specific diagnostic flowcharts.
Repair Complexity:
Covers a wide range of repair complexities from basic fluid changes and filter replacements to complete engine and transmission rebuilds, suspension component replacement, and intricate electrical system troubleshooting.
Illustrations And Diagrams:
Richly illustrated with step-by-step photos and detailed diagrams for component identification, disassembly, and reassembly, crucial for accurate repairs.
Engine Displacement 2004:
5.7 Liters (350 cu. in.)
Engine Type 2004:
V8, Overhead Valve (OHV), 2 Valves per Cylinder
Horsepower 2004:
350 hp @ 5200 rpm
Torque 2004:
365 lb-ft @ 4000 rpm
Engine Code 2005 2006:
LS2
Engine Displacement 2005 2006:
6.0 Liters (364 cu. in.)
Engine Type 2005 2006:
V8, Overhead Valve (OHV), 2 Valves per Cylinder, Aluminum Block & Heads
Horsepower 2005 2006:
400 hp @ 6000 rpm
Torque 2005 2006:
400 lb-ft @ 4400 rpm
Fuel Delivery:
Sequential Port Fuel Injection (SFI)
Recommended Fuel:
Premium Unleaded (91 octane or higher)
Transmission Type:
4-speed Automatic (4L60E/4L65E)
Transmission Type:
5-speed Manual (Tremec T-56)
Transmission Type:
4-speed Automatic (4L65E)
Transmission Type:
6-speed Manual (Tremec T-56)
Transmission Fluid Type:
Dexron III/VI Automatic Transmission Fluid (ATF) for automatic; Manual Transmission Fluid GL-4 or GL-5 for manual.
Clutch System:
Hydraulically actuated single-plate dry clutch for manual transmission models.
NHTSA Front Impact Rating:
5-Star (Driver and Passenger) for 2004-2006 models.
Airbags:
Driver and front passenger airbags, side-impact airbags (optional/standard depending on year/trim).
Seatbelts:
Three-point seatbelts with pretensioners.
ABS:
Standard Anti-lock Braking System (ABS).
Traction Control:
Standard Traction Control System (TCS).
Stability Control:
Optional Electronic Stability Control (ESC) available on later models, often bundled with performance packages.
Audio System:
Bose premium audio system with CD player, often with steering wheel audio controls. Optional subwoofer.
Display:
Central digital display for climate control and audio information. Some models may have optional infotainment upgrades.
Cruise Control:
Standard cruise control system.
Keyless Entry:
Standard keyless entry and remote locking/unlocking.
Power Features:
Power windows, power door locks, power seats (driver's side standard, passenger optional/standard depending on trim).
Oil Change Interval:
Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions. Refer to manual for exact specifications.
Transmission Fluid Change:
Automatic: every 30,000-50,000 miles. Manual: inspect periodically, fluid replacement as needed.
Coolant Flush:
Every 30,000-50,000 miles or 2-3 years, using Dex-Cool coolant.
Engine Oil Type:
SAE 5W-30 Synthetic (for both LS1 and LS2 engines).
Coolant Type:
GM Original Equipment (OE) Dex-Cool Extended Life Coolant (50/50 mix).
Common Problems 2004-2006:
Potential for fuel pump failures, power steering pump leaks, HVAC blend door actuator issues, minor electrical gremlins, and interior trim rattles. Some early models experienced clutch pedal stiffness or master cylinder issues.
Ls Engine Reliability:
LS engines are generally robust, but attention to proper maintenance, especially oil and coolant levels, is crucial.
Pontiac Brand Philosophy:
Known for performance-oriented vehicles and 'Wide Track' styling, Pontiac aimed to offer exciting driving experiences.
New Generation Launch:
The GTO was revived in 2004 as a modern interpretation of the classic muscle car, based on the Australian-developed Holden Monaro platform.
Year Over Year Changes:
2005 saw the introduction of the more powerful 6.0L LS2 engine and improved interior and exterior styling. 2006 received minor updates, including revised seats and a new hood design. Sales were generally lower than anticipated, leading to its discontinuation after 2006.
Production Location:
Adelaide, Australia (by GM Holden)
Production Period:
2004-2006
