🏷️ Basic Information

Make:

Holden / Pontiac

Model:

Monaro / GTO

Model Years Covered:

2004, 2005, 2006

Platform Code:

GM Zeta Platform

Internal Chassis Code:

V2 (Holden), VY/VZ Series (Holden basis)

👋 Introduction

Positioning:

A powerful, rear-wheel-drive coupe that revived the iconic GTO nameplate for the North American market, while continuing its lineage as the Holden Monaro in Australia. Targets enthusiasts seeking performance and a distinctive muscle car experience.

Competitors:

Ford Mustang, Chevrolet Camaro (prior generations), Dodge Challenger (later generation).

Performance Focus:

Emphasis on V8 engine power, rear-wheel-drive dynamics, and a driver-centric experience.

Manual Value Proposition:

Provides the essential, factory-authorized information for owners and independent mechanics to maintain, diagnose, and repair this performance coupe effectively.

📋 Manual Details

Regions Covered:

North America (Pontiac GTO), Australia (Holden Monaro)

Estimated Pages:

1000+

Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

PDF (Digital Download)

📖 Manual Coverage

Powertrain:

Engine (LS1, LS2), Transmission (Manual & Automatic), Drivetrain, Exhaust System

Chassis:

Suspension (Front & Rear), Steering System, Brake System (ABS)

Electrical:

Wiring Diagrams, Lighting, Instruments, Audio System, Security System, Powertrain Control Module (PCM), Body Control Module (BCM)

Body:

Exterior Body Panels, Doors, Hood, Trunk, Interior Trim, HVAC System, Seats, Glass

Maintenance:

Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks & Changes

Diagnostics:

Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Symptom-Based Diagnosis

Repair:

Engine Mechanical Repair, Transmission Overhaul, Suspension Component Replacement, Brake System Overhaul, Electrical Component Repair

Installation:

Component Replacement Procedures, Aftermarket Part Installation Guidelines (implied)

Depth:

Comprehensive; covers basic maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

Compatibility:

Windows and macOS

Printability:

High-resolution, printable pages

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Usage Rights:

Unlimited use on multiple devices, lifetime access

⚙️ Engine Specifications

Engine Code 2004:

LS1

Engine Displacement 2004:

5.7L (350 ci)

Engine Configuration 2004:

V8, OHV, 2 Valves per Cylinder

Engine Code 2005 2006:

LS2

Engine Displacement 2005 2006:

6.0L (364 ci)

Engine Configuration 2005 2006:

V8, OHV, 2 Valves per Cylinder

Horsepower Ls1:

325 hp @ 5200 rpm (approx.)

Torque Ls1:

330 lb-ft @ 4000 rpm (approx.)

Horsepower Ls2:

400 hp @ 6000 rpm (approx.)

Torque Ls2:

395 lb-ft @ 4400 rpm (approx.)

Injection Type:

Sequential Fuel Injection (SFI)

Fuel Type:

Unleaded Premium Gasoline (91 Octane or higher recommended)

🔧 Transmission

Transmission Type 2004:

T-56 6-Speed Manual

Transmission Type 2004 2006:

4L60-E 4-Speed Automatic

Clutch Type:

Hydraulic Actuated

Rear Axle Ratio Manual:

3.46:1 (typical)

Rear Axle Ratio Auto:

3.08:1 (typical)

Manual Transmission Fluid:

Dexron III-G or equivalent (check manual for exact spec)

Automatic Transmission Fluid:

Dexron III-G or Dexron VI (check manual for exact spec)

📐 Dimensions

Wheelbase:

Approx. 110.2 inches (2800 mm)

Length:

Approx. 190.5 inches (4839 mm)

Width:

Approx. 74.7 inches (1897 mm)

Height:

Approx. 54.6 inches (1387 mm)

Curb Weight Manual:

Approx. 3700-3800 lbs (1680-1725 kg)

Curb Weight Auto:

Approx. 3750-3850 lbs (1700-1745 kg)

Gross Vehicle Weight Rating:

Approx. 4600 lbs (2087 kg)

Trunk Volume:

Approx. 15.7 cubic feet (445 Liters)

🛡️ Safety Features

NHTSA Front Impact:

5-Star (Driver & Passenger) - 2005 Model Year

IIHS Front Offset:

Good

Brakes:

4-wheel disc brakes, ABS (Anti-lock Braking System)

Traction Control:

Available (TCS)

Airbags:

Frontal airbags (Driver & Passenger), Side-impact airbags (available)

Seatbelts:

3-point height-adjustable front seat belts, Pretensioners, Load limiters

💡 Technology Features

Audio System:

Premium AM/FM/CD player with optional subwoofer and amplifier.

Instrument Cluster:

Analog gauges with driver information center.

Cruise Control:

Standard

Parking Sensors:

Not typically available from factory.

Bluetooth:

Not available from factory; requires aftermarket installation.

Usb Ports:

Not available from factory; requires aftermarket installation.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 12 months, whichever comes first (synthetic oil recommended).

Engine Coolant Flush:

Every 30,000 miles (48,000 km) or 24 months.

Transmission Fluid Change:

Automatic: Every 50,000 miles (80,000 km). Manual: Check fluid level periodically, change as needed or every 100,000 miles (160,000 km).

Engine Oil Capacity:

5.7L: Approx. 5.5 quarts (5.2 L) with filter. 6.0L: Approx. 6.0 quarts (5.7 L) with filter.

Engine Oil Type:

SAE 5W-30 (Synthetic recommended for optimal performance and protection).

Coolant Type:

Dex-Cool (Orange, long-life coolant, compatible with aluminum engines).

Power Steering Pump:

Leaking seals or noise can be common.

Window Regulators:

Can be prone to failure, leading to windows not operating correctly.

Clutch Wear:

With spirited driving, clutch wear can be accelerated on manual transmission models.

Interior Rattles:

Some owners report minor interior trim rattles over time.

📚 Vehicle History

Holden Legacy:

The Monaro nameplate has a long and celebrated history in Australia, representing Holden's personal luxury coupe line since the 1960s.

Gto Revival:

The Pontiac GTO was a rebadged version of the Australian Holden Monaro, specifically developed for the North American market to capitalize on the resurgence of muscle car interest.

Manufacturing Location:

Adelaide, South Australia, Australia

Production Years:

Holden Monaro (Australia): 2001-2006; Pontiac GTO (North America): 2004-2006

🏆 Awards & Recognition

Car And Driver నించ:

Named to Car and Driver's '10Best' list in 2005.

Motor Trend 評價:

Praised for its V8 power and muscular styling, often compared favorably to its American muscle car rivals.

Manual Certification:

Factory Authorized Content