 
			The Good
The 1991 Montero offers strong off-road performance thanks to its durable 4WD system and solid axles. Its robust, utilitarian design appeals emotionally to adventurers, while practical buyers value its legendary reliability and versatility as a workhorse or family hauler. Though not efficient by modern standards, its enduring value and surprisingly comfortable ride for an SUV of its era are significant advantages.
The Bad
Key weaknesses for the 1991 Montero include susceptibility to rust, particularly in the frame, rear wheel wells, and tailgate. Fuel economy is poor, and on-road handling is decidedly truck-like. Parts availability can be a challenge for specific components, and common engine issues like valve guide seals on the V6 require attention during pre-purchase inspections.
1991 Mitsubishi Montero: Quick Overview
- Engine Options: The primary engine for the 1991 US-market Montero was a 3.0-liter SOHC V6. Earlier models sometimes featured a 2.6-liter inline-four, but the V6 was dominant by '91.
- Horsepower: The 3.0L V6 produced approximately 143 horsepower and 168 lb-ft of torque, providing adequate power for both on-road and off-road driving.
- Fuel Economy: Fuel economy figures were not a strong suit. Owners typically reported around 13-16 miles per gallon (MPG) combined, varying significantly with driving conditions and vehicle maintenance.
- 0-60 Times: Acceleration was leisurely, with 0-60 mph times generally falling in the 11-13 second range, typical for SUVs of its vintage.
- Towing Capacity: The 1991 Montero, when properly equipped, had a towing capacity of around 3,500 pounds, making it suitable for light trailers or small boats.
- Trim-Level Features:- Base (often referred to simply as Montero): Generally came with essential features such as manual windows, manual door locks, vinyl or basic cloth upholstery, and a robust four-wheel-drive system. It prioritized function over luxury.
- LS (Luxury Sport): Offered more comfort and convenience. Features often included power windows and door locks, air conditioning, cruise control, upgraded cloth interior, a better audio system (AM/FM cassette), and possibly more aesthetic exterior trim. Some LS models featured adjustable shock absorbers (often called "Active ECS" or "Multi-Mode Suspension") providing driver-selectable ride firmness.
- RS (Rally Sport): This trim often provided a slightly more aggressive or sporty appearance, sometimes with unique wheels or graphics, but might have fewer luxury features than the LS, focusing on a rugged, capable image.
- General Features Across Trims: All models boasted a strong body-on-frame construction, capable 4WD with a two-speed transfer case, and ample ground clearance. Many featured front torsion bar and rear leaf spring suspension (or coil springs on later first-gen models), providing durability for off-road use. A rear limited-slip differential was an option on higher trims.
 
1991 Mitsubishi Montero Specifications
Vehicle Information
| Year | 1991 | 
| Make | Mitsubishi | 
| Model | Montero | 
| Trim | - | 
| Style | 4-Door 4WD | 
| Type | Sport Utility Vehicle | 
| Category | Standard Sport Utility Vehicle | 
Manufacturing Details
| Made In | Japan | 
| Manufacturing City | NAGOYA | 
Dimensions
| Doors | 4-Door | 
| Curb Weight | - | 
| Gross Vehicle Weight Rating | 6000 pounds | 
| Overall Height | 74.40 inches | 
| Overall Length | 183.10 inches | 
| Overall Width | 66.10 inches | 
| Wheelbase Length | 106.10 inches | 
| Standard Seating | 5 | 
Engine & Performance
| Engine | 3.0-L V-6 SOHC 12V | 
| Engine Size | 3L | 
| Engine Cylinders | 6 | 
| Transmission | 5-Speed Manual | 
| Transmission Type | Manual | 
| Transmission Speeds | 5-Speed | 
| Drivetrain | Four-Wheel Drive | 
Additional Features
| Anti-Brake System | Non-ABS | 
| Steering Type | Recirculating | 
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $15,789 | 
| Invoice Price | - | 
| Delivery Charges | - | 
Vehicle History Report
Specifications
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Analysis
What Problems Does the 1991 Mitsubishi Montero Have?
Rust: This is arguably the biggest enemy. Common rust areas include the frame, rocker panels, rear wheel arches, and the lower sections of the tailgate. Vehicles in areas with salted roads are particularly susceptible. Thorough inspection of the undercarriage and body is crucial.
Engine Issues (3.0L V6): The 3.0L SOHC V6 engine, while generally durable, is known for premature wear of valve guide seals. This often manifests as noticeable blue smoke from the exhaust, especially on startup or during deceleration, indicating oil burning. Head gasket leaks are less common but can occur, particularly if the engine has been overheated.
Transmission: Manual transmissions are usually very durable. The automatic transmissions, however, can develop issues with age, such as delayed shifts, slipping, or harsh engagement, often due to neglected fluid changes or wear of internal components.
Electrical Gremlins: Minor electrical issues are common, including intermittent dashboard lights, faulty power window motors, and non-functional accessories. Wiring harnesses can become brittle over time.
Suspension and Steering: As with any older vehicle, wear in suspension components like ball joints, tie rod ends, control arm bushings, and shock absorbers is common. The steering box can also develop play, leading to a loose steering feel.
Brakes: Age can lead to common brake issues such as sticky calipers, worn rotors, and issues with the master cylinder or brake lines. Some models had rear-wheel ABS, which can be prone to sensor failures or modulator issues.
Fuel System: Problems with fuel pumps, fuel lines (especially rust on metal lines), and fuel injectors can arise with age.
Recalls: For a 1991 model, major recalls are less common to be active, but historical recalls did exist for various Mitsubishi models around that time, often related to components like fuel system parts, seat belt buckles, or minor electrical concerns. Prospective buyers should check NHTSA records using the VIN, though finding specific recalls active for a 30+ year old vehicle can be challenging. Overall, while the Montero's mechanicals are strong, age-related wear and rust are the primary long-term reliability concerns.
How long will the 1991 Mitsubishi Montero last?
What Technology & Safety Features are Included?
Built-in Tech: The cabin featured a functional, no-frills dashboard with analog gauges for speed, RPM, fuel level, and engine temperature. Basic climate control was standard, typically with manual sliders for temperature and fan speed. Higher trims might have included a digital clock. Some advanced features for its time, like an inclinometer and altimeter, were available in a "Convenience Package" or standard on higher trims, appealing to its off-road audience.
Entertainment: Standard entertainment was an AM/FM stereo with a cassette player. Higher trim levels, like the LS, might have offered a more advanced unit with a graphic equalizer or a premium sound system for the era, possibly with four speakers. CD players were rare or an expensive dealer option, often an aftermarket addition.
Driver-Assistance Features: In the modern sense, driver-assistance features were non-existent. The Montero offered fundamental aids such as power steering for easier maneuverability and power-assisted brakes. Cruise control was an optional convenience feature on higher trim levels.
Safety Features: Safety for the 1991 Montero relied on its strong body-on-frame construction and passive safety measures. Standard safety equipment included three-point seat belts for front occupants and lap belts for rear passengers. Airbags were not standard equipment for this model year and were not an option. Some higher trims offered optional 2-wheel Anti-lock Braking System (ABS) for the rear wheels, a nascent safety technology at the time.
Optional Features: Beyond what's mentioned, optional features could include power windows, power door locks, power-adjustable side mirrors, air conditioning, a sunroof, and the aforementioned adjustable suspension system on LS models.
Crash-Test Ratings: Modern standardized crash-test ratings (like those from NHTSA or IIHS) were not conducted for vehicles of this age. Safety assessments were rudimentary compared to today's rigorous testing, so no formal crash-test ratings are available. Buyers relied on the vehicle's perceived structural integrity and the presence of basic safety equipment.
What Colors Options are Available?
1991 Mitsubishi Montero Prices and Market Value
Currently, used market prices are highly variable. A project-level or rough example might fetch $1,000 to $3,000. A well-maintained, running example in good condition can command $3,000 to $8,000. Exceptional, low-mileage, or meticulously restored examples can reach $8,000 to over $15,000, particularly those with desirable features like manual transmissions or unique factory options.
Factors significantly affecting its resale value include the overall condition (especially the absence of rust), complete maintenance records, mileage, and the presence of rare or desirable features. Enthusiast demand for these classic off-roaders has helped stabilize, and in some cases, increase their value.
1991 Mitsubishi Montero Cost of Ownership
Maintenance can be economical if you're a DIY mechanic, as basic servicing is straightforward. However, repair costs can be unpredictable. While common parts are available, specialized Montero components might be harder to source, potentially increasing repair times and expenses. Overall, it's not an economical vehicle purely in terms of running costs (fuel), but its initial purchase price and potential for DIY maintenance can balance out ownership expenses compared to a modern vehicle, assuming no major mechanical failures occur.
1991 Mitsubishi Montero Fuel Efficiency
1991 Mitsubishi Montero Safety Rating
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1991 Mitsubishi Montero Warranty
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1991 Mitsubishi Montero Insurance
reasonable repair costs.
How Does the 1991 Mitsubishi Montero Compare to Other Sport Utility Vehicle?
Performance: The Montero excelled off-road with its robust body-on-frame chassis, capable 4WD system, and ample ground clearance. Its 3.0L V6 offered decent, though not exhilarating, power. It generally matched the off-road prowess of the 4Runner and Pathfinder. The Jeep Cherokee XJ, with its lighter unibody construction and potent inline-six engine, often felt more agile and powerful on-road, while still being legendary off-road. The Isuzu Trooper was similarly rugged but sometimes felt underpowered.
Features: The Montero often had a slight edge in available features, particularly with its optional adjustable suspension (Active ECS), which was quite advanced for its time. However, all rivals offered similar creature comforts like power accessories, air conditioning, and decent audio systems on higher trims. The 4Runner was known for its removable top on 2-door models.
Reliability: All these SUVs were built during an era known for mechanical durability. The Toyota 4Runner is often perceived as having the highest benchmark for reliability, primarily due to widespread parts availability and a reputation for being bulletproof. The Montero, Pathfinder, and Trooper were also very reliable if well-maintained, though some Montero-specific issues (like valve guide seals) required attention. The Jeep Cherokee XJ also enjoyed strong reliability, particularly with its AMC 4.0L engine.
Price: When new, prices were competitive across the board. In the current used market, the Montero often offers better value than a comparable 4Runner, which typically commands a premium due to its Toyota badge. Pathfinders and Troopers generally sit in a similar price bracket to the Montero, while the Cherokee XJ can be found across a wide spectrum depending on condition and modifications.
Alternatives:
- Better Off-Road (potentially): For sheer aftermarket support and uncompromised off-road capability, the Jeep Cherokee XJ is a strong contender. The Toyota 4Runner is also an excellent alternative for its legendary reliability and off-road capability.
- Similar Alternatives: The 1st Generation Nissan Pathfinder and Isuzu Trooper offer very similar ruggedness, utility, and a classic SUV experience at competitive prices.
Final Verdict: Is the 1991 Mitsubishi Montero a Good Sport Utility Vehicle?
Is it worth buying? Absolutely, but with specific caveats. As a used vehicle, it offers significant bang for the buck in terms of off-road prowess and character. However, buyers must be prepared for higher fuel costs and the potential for age-related repairs, especially rust.
The best conditions for purchase involve finding a well-maintained example, ideally from a dry climate to minimize rust issues. Prioritize examples with comprehensive service records. While all trims offer capability, the LS trim provides a good balance of features and comfort. A manual transmission is often sought after by enthusiasts. It's a fantastic choice for those who value authentic off-road capability and classic SUV charm over modern conveniences and fuel efficiency.
