🏷️ Basic Information

Make:

Mitsubishi

Model:

Montero

Year:

1999

Chassis Code:

V Series (e.g., V23W, V24W, V25W, V26W, V43W, V44W, V45W, V46W)

Engine Codes:

6G72, 6G74, 4D56T (Diesel)

👋 Introduction

Market Position:

The 1999 Mitsubishi Montero was a highly capable mid-size SUV, positioned as a rugged, off-road oriented alternative to more car-like crossovers, competing with vehicles like the Toyota 4Runner, Jeep Grand Cherokee, and Ford Explorer.

Competitive Analysis:

The Montero's key differentiators included its robust chassis, advanced Super Select 4WD system (on many models), and availability of powerful V6 engines. It appealed to buyers seeking true off-road capability combined with daily usability.

Key Features:

Available V6 engines, robust body-on-frame construction, available Super Select 4WD, long-travel independent front suspension, spacious interior, optional luxury features, and impressive towing capacity.

📋 Manual Details

Coverage Areas:

Complete repair and service procedures for all major vehicle systems.

Specific Model Variants:

Covers various trim levels (e.g., base, LS, SR) and drivetrain configurations (2WD and 4WD) for the 1999 model year.

Page Count:

Estimated 2000+ pages (typical for comprehensive service manuals of this era)

Manual Type:

Service and Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Systems Covered:

Engine, Drivetrain (4WD system, Transfer Case, Differentials), Transmission (Automatic & Manual), Brakes (ABS, Hydraulic), Steering, Suspension (Front & Rear Independent), Electrical System (Wiring Diagrams, ECUs, Lighting, Accessories), HVAC, Fuel System, Exhaust System, Cooling System, Body and Chassis, Interior Trim, Safety Systems.

Procedures Included:

Scheduled maintenance, routine inspections, diagnostic procedures, troubleshooting guides, repair instructions, component removal and installation, rebuilding procedures, tightening specifications, fluid capacities and types, electrical troubleshooting, diagnostic trouble codes (DTCs).

Body And Chassis Repair:

Includes procedures for body panel alignment, corrosion repair, chassis component inspection and replacement, frame straightening (where applicable), and suspension bushing replacement.

Electrical Diagnostics:

Detailed wiring diagrams for all major electrical systems, troubleshooting flowcharts for common electrical faults, component testing procedures, and ECU diagnostic information.

Technical Depth:

Comprehensive, covering basic maintenance to full engine and transmission rebuilds, including detailed electrical diagnostics and schematics.

Engine Rebuild:

Covers complete engine teardown, inspection of internal components (pistons, rings, bearings, crankshaft, camshafts), cylinder head repair, and reassembly procedures with torque specifications.

Transmission Overhaul:

Provides detailed steps for the overhaul of both automatic and manual transmissions, including torque converter removal/installation, clutch pack replacement, gear inspection, and reassembly.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, ensuring clarity of text and diagrams; searchable text for easy navigation.

Binding Type:

N/A (Digital PDF format)

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Primary Engine 1:

3.0L V6 SOHC (6G72)

Primary Engine 2:

3.5L V6 SOHC (6G74)

Primary Engine 3:

2.8L 4-Cylinder Turbo Diesel (4D56T)

Horsepower 6G72:

Approx. 177-188 hp (depending on specific tune)

Torque 6G72:

Approx. 200-215 lb-ft

Horsepower 6G74:

Approx. 200-215 hp

Torque 6G74:

Approx. 220-235 lb-ft

Horsepower 4D56T:

Approx. 123 hp

Torque 4D56T:

Approx. 200 lb-ft

Fuel System:

Electronic Fuel Injection (EFI) for gasoline engines; Indirect Injection (IDI) with Turbocharger for diesel.

Fuel Type:

Unleaded gasoline (87 octane or higher recommended) for gasoline engines; Diesel fuel for diesel engines.

Ignition System:

Distributorless Ignition System (DIS) or Distributor-based system depending on exact sub-model and market.

Cooling System:

Pressurized liquid cooling system with thermostatically controlled fan.

🔧 Transmission

Transmission Standard:

4-speed automatic transmission (often with overdrive)

Transmission Optional:

5-speed manual transmission (less common)

4Wd System:

Super Select 4WD II (selectable 2WD, 4WD Full-time, 4WD Part-time with locked center differential and low range) standard on many models, or conventional 4WD system.

Automatic Transmission Fluid:

Dexron III or equivalent (consult manual for exact specification)

Manual Transmission Fluid:

API GL-4 or GL-5, SAE 75W-90 (consult manual for exact specification)

📐 Dimensions

Wheelbase:

Approx. 109.4 inches (2780 mm)

Length:

Approx. 184.5 - 187.0 inches (4685 - 4750 mm)

Width:

Approx. 70.5 inches (1790 mm)

Height:

Approx. 73.0 inches (1855 mm)

Curb Weight:

Approx. 4,200 - 4,800 lbs (1905 - 2177 kg), varies by configuration.

Towing Capacity:

Up to 5,000 lbs (2268 kg), depending on configuration and trailer brakes.

Cargo Volume Behind 2Nd Row:

Approx. 45.7 cu ft (1294 liters)

Cargo Volume With 2Nd Row Folded:

Approx. 90.0 cu ft (2549 liters)

🛡️ Safety Features

NHTSA Rollover Rating:

4-star (for vehicles with 4WD)

Active Safety Features:

Anti-lock Braking System (ABS) standard on most models, Traction Control System (TCS) available on select trims.

Passive Safety Features:

Dual front airbags, crumple zones, reinforced safety cage construction, three-point seatbelts with pretensioners, height-adjustable shoulder belts, child seat anchor points (LATCH) not standard on this model year.

💡 Technology Features

Infotainment Features:

Optional premium audio systems (e.g., Rockford Fosgate), CD player, cassette player, AM/FM radio. Navigation systems were very rare or aftermarket for this era.

Driver Assistance Features:

Cruise control, automatic climate control (optional on higher trims), power windows, power locks, power mirrors, heated seats (optional).

Connectivity Features:

Minimal by modern standards; primarily focused on audio system connectivity. No Bluetooth or USB connectivity.

🔧 Maintenance

Engine Oil Change Interval:

Every 3,750 miles (6,000 km) or 3 months for severe conditions, 7,500 miles (12,000 km) or 6 months for normal conditions (refer to manual for specifics).

Oil Filter Replacement:

Replace with every oil change.

Air Filter Replacement:

Every 15,000 miles (24,000 km) or 12 months, inspect more frequently.

Coolant Flush Interval:

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

Spark Plug Replacement:

Approx. 30,000-60,000 miles (48,000-96,000 km) depending on type (refer to manual).

Timing Belt Replacement:

For 6G72 SOHC engines, timing belt replacement is recommended every 60,000 to 90,000 miles (96,000 to 145,000 km) or 5-7 years, whichever comes first. The 6G74 and 4D56T might have timing chains or different belt intervals; always consult the manual.

Engine Oil Specification:

API SG or higher, SAE 5W-30 or 10W-30 (consult manual for viscosity based on ambient temperature).

Coolant Specification:

Mitsubishi DIA-Queen SUPER LONG LIFE COOLANT (SLLC) or equivalent (ethylene glycol based, 50/50 mix with distilled water).

Brake Fluid Specification:

DOT 3 or DOT 4 hydraulic brake fluid.

Known Issues Common:

Valve cover gasket leaks, exhaust manifold leaks, radiator issues (overheating), transmission shift solenoid failures (automatic), potential for head gasket issues (especially on early 6G74 engines under high stress), drive shaft boot tears, fuel pump failure, ABS sensor failures.

Troubleshooting Focus:

The manual provides detailed troubleshooting trees for common drivability issues, electrical faults, and mechanical problems, often cross-referencing with diagnostic trouble codes.

📚 Vehicle History

Brand Heritage:

Mitsubishi Motors, a Japanese automotive manufacturer with a long history in vehicle production, including specialized off-road vehicles and performance cars.

Model Evolution:

The 1999 Montero (often referred to as the second generation, or 'NM' series in some markets) represented a significant update with a more modern design, improved powertrain options, and enhanced features. It continued the Montero's legacy as a capable off-road SUV.

Production Years:

Second generation produced from 1991 to 2000 globally, with the 1999 model year part of this generation.

Manufacturing Locations:

Primarily Japan (e.g., Mitsubishi Motors' Pajero Manufacturing Co., Ltd. plant in Okazaki, Aichi).

🏆 Awards & Recognition

Recognitions General:

While specific awards for the 1999 model are scarce, the Montero line consistently received praise for its off-road capability and durability. It was often ranked highly among its peers in the mid-size SUV segment for value and ruggedness.

Ratings Off Road:

Consistently rated as one of the most capable off-road SUVs in its class due to its robust chassis, suspension travel, and advanced 4WD system.