🏷️ Basic Information Identification Make: Pontiac Model: GTO Model Years Covered: 2004, 2005, 2006 Codes Platform Code: GM Zeta (derived from Holden Monaro VZ) 👋 Introduction Market Position Positioning: The Pontiac GTO (2004-2006) was positioned as a return to performance for the Pontiac brand, a modern interpretation of the classic muscle car, targeting enthusiasts seeking V8 power and rear-wheel-drive dynamics. Competitive Analysis Competitors: Competed against vehicles like the Ford Mustang, Chevrolet Camaro (later generations), Dodge Challenger, and other rear-wheel-drive performance coupes of its era. Key Features Distinctive Features: V8 engine options (LS1 and LS2), rear-wheel-drive platform, Australian Holden-derived chassis, aggressive styling, performance-oriented suspension and braking. 📋 Manual Details Coverage Areas Languages Available: English Page Count Estimated Page Count: Detailed, typically 2000+ pages for a full factory service manual set covering all years and models. Manual Type Type: Service and Repair Manual Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system, engine control systems (ECM). Transmission: Manual (Tremec T-56) and Automatic (GM 4L60-E) transmission repair, diagnostics, operation, and maintenance. Drivetrain: Rear axle, driveshaft, CV joints, differential. Chassis & Suspension: Front and rear suspension (independent front and rear), steering system, wheel alignment specifications. Brakes: Brake system diagnostics, ABS, brake pad replacement, caliper service, brake fluid specifications. Electrical: Wiring diagrams, fuse box layouts, lighting systems, power windows, power locks, instrument cluster, diagnostic trouble codes (DTCs). Body & Interior: Body panel removal and installation, interior trim, seats, airbags, climate control system. Procedures Included Maintenance: Scheduled maintenance, fluid changes (oil, coolant, brake, transmission), filter replacements, spark plug replacement. Diagnostics: Troubleshooting guides for common and uncommon issues, diagnostic scan tool usage, symptom-based diagnostics. Repair: Step-by-step instructions for component replacement and repair, including engine rebuild procedures, transmission overhaul, suspension component replacement, brake caliper servicing, and electrical component repair. Assembly/Disassembly: Detailed instructions for dismantling and reassembling various vehicle components, often with torque specifications and special tool requirements. Technical Depth Depth: Comprehensive; covers everything from basic fluid checks and tire rotations to complex engine and transmission overhauls, electrical system diagnostics, and body repair. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with clear images and diagrams. Printable by section or in full. Print Quality Printability: Designed for individual section printing or full manual printing, allowing for easy reference in a workshop environment. Binding Type Binding: Not applicable (digital format). Recommended binding for printed version: Coil or perfect bound for ease of use. Paper Type Paper: Not applicable (digital format). For printed versions, a durable, high-quality paper stock is recommended for workshop use. ⚙️ Engine Specifications Primary Engine Engine Code 2004 2005: LS1 Engine Code 2006: LS2 Performance 2004 2005 Ls1 Horsepower: 350 hp @ 5200 rpm 2004 2005 Ls1 Torque: 365 lb-ft @ 4000 rpm 2006 Ls2 Horsepower: 400 hp @ 6000 rpm 2006 Ls2 Torque: 395 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Displacement Ls1 Displacement: 5.7 Liters (350 cubic inches) Ls2 Displacement: 6.0 Liters (364 cubic inches) 🔧 Transmission Standard 2004 2005 Transmission Type: Tremec T-56 6-speed Manual Optional 2004 2005 Transmission Type: GM 4L60-E 4-speed Automatic Standard 2006 Transmission Type: Tremec T-56 6-speed Manual Optional 2006 Transmission Type: GM 4L60-E 4-speed Automatic Features Clutch Type: Hydraulic clutch actuation Transmission Fluid Spec Manual: Dexron III or equivalent (check manual for specific GL rating if available) Transmission Fluid Spec Auto: Dexron III H Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Wheelbase: 110.2 inches (2799 mm) Length: 195.7 inches (4971 mm) Width: 74.6 inches (1895 mm) Height: 54.7 inches (1390 mm) Weights Curb Weight Manual: Approx. 3725-3800 lbs (1690-1724 kg) Curb Weight Automatic: Approx. 3790-3870 lbs (1719-1755 kg) Gross Vehicle Weight Rating Gvwr: Approx. 4700 lbs (2132 kg) Cargo Trunk Capacity: 13.6 cubic feet (385 Liters) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-star NHTSA Front Impact Passenger: 5-star IIHS Front Offset Crash Rating: Good (for 2004-2006 models) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Electronic Stability Control: Available (StabiliTrak on some models) Passive Features Airbags Front: Dual front airbags Airbags Side: Available front-seat side-impact airbags Seatbelts: 3-point front and rear seatbelts with pretensioners 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with CD player. Optional premium sound systems available. Climate Control: Manual or optional automatic climate control (ACC). Driver Assistance Cruise Control: Standard cruise control. Connectivity Auxiliary Input: Not standard on all models; some later models may have had an auxiliary input jack for external audio devices. 🔧 Maintenance Service Intervals Engine Oil Change: Every 7,500 miles or 6 months, whichever comes first (using synthetic oil). Engine Air Filter: Inspect every 7,500 miles, replace as needed. Replacement typically around 30,000 miles. Spark Plugs: Replace at 100,000 miles...