The 1998 Isuzu Trooper is a robust, second-generation (1991-2002) mid-size SUV known for its "go-anywhere" capability. Sporting a classic, boxy body-on-frame design, it appealed to adventure seekers and families alike. Key trims typically included the S, LS, and Limited, offering varying levels of comfort and features. New, its price range was roughly $27,000 to $35,000. Its rugged reliability and strong off-road prowess made it stand out, earning a reputation as a practical, no-nonsense utility vehicle for those needing true SUV functionality.
The Good
The 1998 Isuzu Trooper offered strong performance with its V6 engine, providing ample torque for towing and off-roading. Its body-on-frame construction contributed to its renowned reliability and durability. Comfort was decent for its class, especially in higher trims, with a spacious interior. The straightforward, utilitarian design appealed to practical buyers, while its rugged aesthetics and proven off-road capability resonated with emotional buyers seeking adventure and dependability. Despite modest efficiency, its overall value proposition was strong, especially as a used vehicle.
The Bad
When considering a 1998 Isuzu Trooper, buyers should be aware of a few known weaknesses. Owners frequently report issues with excessive oil consumption in the 3.5L V6 engine, particularly with the 6VD1 DOHC variant. Transmission problems, especially with the automatic units, can also arise. Rust on the frame and body is common in colder climates, and electrical gremlins, particularly related to windows and gauges, can be frustrating. Always check for proper four-wheel-drive engagement.
1998 Isuzu Trooper: Quick Overview
Here is a bullet-point summary of key specifications for the 1998 Isuzu Trooper:
- Engine Options: The primary engine for the U.S. market 1998 Trooper was a 3.5-liter DOHC (Dual Overhead Cam) 24-valve V6 engine, designated as the 6VD1. Some international markets might have seen other options, but this was standard for North America.
- Horsepower: The 3.5L V6 engine produced approximately 215 horsepower at 5400 RPM. This provided adequate power for its size and intended use, including highway cruising and off-road excursions.
- Torque: Alongside its horsepower, the 3.5L V6 delivered about 230 lb-ft of torque at 3000 RPM, which was beneficial for low-end grunt and towing.
- Fuel Economy (EPA Estimated):
- Automatic Transmission: Roughly 14 MPG city / 18 MPG highway.
- Manual Transmission (less common): Slightly better, around 15 MPG city / 19 MPG highway.
- Note: Fuel economy was not a strong suit for the Trooper, aligning with most SUVs of its era.
- 0-60 MPH Times: Performance was respectable but not stellar for an SUV of its time, typically ranging from 9.5 to 10.5 seconds, depending on transmission and load.
- Towing Capacity: The 1998 Isuzu Trooper boasted a significant towing capacity for its class, often rated up to 5,000 pounds when properly equipped. This made it a popular choice for those needing to haul boats, trailers, or other recreational gear.
- Trim-Level Features:
- S Trim: The base model, typically featuring manual windows and locks, air conditioning, AM/FM stereo, and steel wheels. Focus was on utility.
- LS Trim: Stepped up with power windows, power door locks, cruise control, better cloth upholstery, alloy wheels, and often an upgraded audio system. More comfort-oriented.
- Limited Trim: The top-tier offering included leather seating, heated front seats, a power moonroof, premium audio systems (often with CD changer), keyless entry, dual-zone climate control, and exterior enhancements like body cladding and fog lights. It aimed for a more luxurious experience while retaining rugged capability.
- All trims typically came with standard four-wheel drive (part-time or shift-on-the-fly) and a sturdy suspension setup.
1998 Isuzu Trooper Specifications
Vehicle Information
| Year | 1998 |
| Make | Isuzu |
| Model | Trooper |
| Trim | - |
| Style | - |
| Type | - |
| Category | - |
Manufacturing Details
| Made In | - |
| Manufacturing City | - |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | - |
| Engine Size | - |
| Engine Cylinders | - |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | - |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1998 Isuzu Trooper Have?
The 1998 Isuzu Trooper, while generally reliable for its robust construction, has several frequently reported problems and long-term reliability concerns that potential owners should be aware of. The most infamous issue, especially with the 3.5L V6 engine introduced in 1998, is excessive engine oil consumption. This isn't necessarily a catastrophic failure but requires diligent monitoring and frequent top-ups, as running low on oil can lead to premature engine wear or failure. Some owners have attributed this to piston ring design flaws or valve seal issues. This problem is particularly prevalent in the 1998-2002 models.
The automatic transmissions can also develop shifting irregularities, harsh engagement, or even failure, especially as mileage accumulates. Regular fluid changes are crucial but don't always prevent these issues entirely.
Rust is a significant issue, particularly on the frame, suspension components, and rear wheel wells, especially in regions that use road salt. A thorough inspection underneath the vehicle is essential.
Electrical problems can also crop up, including faulty power window switches, malfunctioning gauges (speedometer/fuel gauge), and issues with the climate control system.
Regarding recalls, the 1998 Trooper was notably part of a widespread recall related to the fire risk due to power window master switch wiring harness. Isuzu issued a recall (NHTSA Campaign ID: 99V012000) for a fire hazard caused by an improperly routed wire harness in the power window master switch. Another recall (NHTSA Campaign ID: 99V127000) addressed potential cracking of the fuel filler hose, leading to fuel leakage. It's crucial to verify if these recall services were performed on any prospective purchase.
Steering component wear, such as tie rod ends and idler arms, is also common due to the vehicle's weight and rough-road capability. Buyers should also inspect for vacuum leaks that can affect engine performance and idle stability.
The automatic transmissions can also develop shifting irregularities, harsh engagement, or even failure, especially as mileage accumulates. Regular fluid changes are crucial but don't always prevent these issues entirely.
Rust is a significant issue, particularly on the frame, suspension components, and rear wheel wells, especially in regions that use road salt. A thorough inspection underneath the vehicle is essential.
Electrical problems can also crop up, including faulty power window switches, malfunctioning gauges (speedometer/fuel gauge), and issues with the climate control system.
Regarding recalls, the 1998 Trooper was notably part of a widespread recall related to the fire risk due to power window master switch wiring harness. Isuzu issued a recall (NHTSA Campaign ID: 99V012000) for a fire hazard caused by an improperly routed wire harness in the power window master switch. Another recall (NHTSA Campaign ID: 99V127000) addressed potential cracking of the fuel filler hose, leading to fuel leakage. It's crucial to verify if these recall services were performed on any prospective purchase.
Steering component wear, such as tie rod ends and idler arms, is also common due to the vehicle's weight and rough-road capability. Buyers should also inspect for vacuum leaks that can affect engine performance and idle stability.
How long will the 1998 Isuzu Trooper last?
Based on owner data and maintenance habits, a well-maintained 1998 Isuzu Trooper can often reach 200,000 to 250,000 miles or more, equating to 15-20 years of service, demonstrating impressive long-term durability for its body-on-frame chassis and drivetrain components. However, achieving these high mileages heavily depends on addressing known weaknesses proactively. Regular oil changes are paramount, especially given the propensity for oil consumption in the 3.5L V6 engine; owners often check oil levels between scheduled changes.
Over time, the Trooper's weaknesses, such as automatic transmission issues, suspension wear, and rust on the chassis, can become more pronounced if neglected. The vehicle's long-term durability is a testament to its robust engineering, but component failures, particularly electrical ones, can increase with age. Rust, especially, can compromise structural integrity and make repairs difficult or uneconomical. Owners who are mechanically inclined and willing to perform routine maintenance and address minor issues as they arise tend to get the longest service life out of these vehicles.
Over time, the Trooper's weaknesses, such as automatic transmission issues, suspension wear, and rust on the chassis, can become more pronounced if neglected. The vehicle's long-term durability is a testament to its robust engineering, but component failures, particularly electrical ones, can increase with age. Rust, especially, can compromise structural integrity and make repairs difficult or uneconomical. Owners who are mechanically inclined and willing to perform routine maintenance and address minor issues as they arise tend to get the longest service life out of these vehicles.
What Technology & Safety Features are Included?
The 1998 Isuzu Trooper, being a vehicle from the late 90s, featured technology that was standard for its era, focusing more on mechanical robustness than sophisticated electronics.
In terms of built-in tech and entertainment, the base S model typically included an AM/FM stereo with two speakers. Higher trims like the LS and Limited offered more refined audio systems, often including a cassette player, and sometimes a CD player or optional CD changer, along with a few more speakers. Climate control was manual across most trims, though the Limited might have offered a more advanced system. Power windows, door locks, and cruise control were standard on LS and Limited trims, offering convenience features.
Driver-assistance features were minimal by modern standards. You would find power steering, and power-assisted brakes (front discs, rear drums were common). Traction control or stability control systems were not typical offerings for this model year or class of vehicle. The four-wheel-drive system was a manual or shift-on-the-fly electronic engagement, relying on driver input rather than advanced automated systems.
Safety features for the 1998 Trooper included dual front airbags as standard. Anti-lock brakes (ABS) were typically optional on lower trims and standard on higher trims (LS/Limited). Side-impact protection was built into the doors, and the body-on-frame construction offered inherent rigidity. However, it lacked modern safety technologies like side airbags, electronic stability control, or advanced collision avoidance systems.
Crash-test ratings for the 1998 Isuzu Trooper were a point of controversy. The National Highway Traffic Safety Administration (NHTSA) did not provide extensive ratings for the Trooper in a format directly comparable to modern star ratings. However, the Insurance Institute for Highway Safety (IIHS) conducted a moderate overlap front test on the 1998-2002 Trooper, which resulted in a "Poor" rating. This was due to significant intrusion into the occupant compartment, raising concerns about potential leg and foot injuries, and suggesting a higher risk of injury in this specific type of frontal crash compared to many contemporary vehicles. This rating was a notable criticism of the Trooper's safety performance, even leading to a lawsuit between Isuzu and Consumer Reports, which highlighted the Trooper's rollover propensity. While the lawsuit focused on an earlier model year's rollover risk, the IIHS frontal crash test results underscored areas where the Trooper lagged in passive safety design compared to evolving standards.
In terms of built-in tech and entertainment, the base S model typically included an AM/FM stereo with two speakers. Higher trims like the LS and Limited offered more refined audio systems, often including a cassette player, and sometimes a CD player or optional CD changer, along with a few more speakers. Climate control was manual across most trims, though the Limited might have offered a more advanced system. Power windows, door locks, and cruise control were standard on LS and Limited trims, offering convenience features.
Driver-assistance features were minimal by modern standards. You would find power steering, and power-assisted brakes (front discs, rear drums were common). Traction control or stability control systems were not typical offerings for this model year or class of vehicle. The four-wheel-drive system was a manual or shift-on-the-fly electronic engagement, relying on driver input rather than advanced automated systems.
Safety features for the 1998 Trooper included dual front airbags as standard. Anti-lock brakes (ABS) were typically optional on lower trims and standard on higher trims (LS/Limited). Side-impact protection was built into the doors, and the body-on-frame construction offered inherent rigidity. However, it lacked modern safety technologies like side airbags, electronic stability control, or advanced collision avoidance systems.
Crash-test ratings for the 1998 Isuzu Trooper were a point of controversy. The National Highway Traffic Safety Administration (NHTSA) did not provide extensive ratings for the Trooper in a format directly comparable to modern star ratings. However, the Insurance Institute for Highway Safety (IIHS) conducted a moderate overlap front test on the 1998-2002 Trooper, which resulted in a "Poor" rating. This was due to significant intrusion into the occupant compartment, raising concerns about potential leg and foot injuries, and suggesting a higher risk of injury in this specific type of frontal crash compared to many contemporary vehicles. This rating was a notable criticism of the Trooper's safety performance, even leading to a lawsuit between Isuzu and Consumer Reports, which highlighted the Trooper's rollover propensity. While the lawsuit focused on an earlier model year's rollover risk, the IIHS frontal crash test results underscored areas where the Trooper lagged in passive safety design compared to evolving standards.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
1998 Isuzu Trooper Prices and Market Value
When new, the 1998 Isuzu Trooper had a price range reflecting its trim levels and optional equipment. The base S model typically started around $27,000, while the mid-range LS could be around $30,000-$32,000, and the top-tier Limited model often fetched $35,000 or more. These prices were competitive for a mid-size SUV with its capabilities at the time.
Today, the current used market prices for a 1998 Isuzu Trooper are significantly lower, as expected for a vehicle of this age. Prices can range widely, from as low as $1,500 to $5,000, depending heavily on condition, mileage, maintenance history, and local market demand. Exceptionally well-preserved, low-mileage examples might command slightly higher prices, but these are rare.
Depreciation for the Trooper has been steep, a common trend for many non-luxury SUVs once they age past 10-15 years. Factors affecting its resale value include the notorious oil consumption issues of the 3.5L V6, the "Poor" IIHS crash test rating, and general lack of brand presence in the U.S. after Isuzu's departure. However, its ruggedness and off-road appeal create a niche market, meaning well-maintained examples with complete service records can hold their value better among enthusiasts. The cost of potential repairs often outweighs its market value, further depressing prices.
Today, the current used market prices for a 1998 Isuzu Trooper are significantly lower, as expected for a vehicle of this age. Prices can range widely, from as low as $1,500 to $5,000, depending heavily on condition, mileage, maintenance history, and local market demand. Exceptionally well-preserved, low-mileage examples might command slightly higher prices, but these are rare.
Depreciation for the Trooper has been steep, a common trend for many non-luxury SUVs once they age past 10-15 years. Factors affecting its resale value include the notorious oil consumption issues of the 3.5L V6, the "Poor" IIHS crash test rating, and general lack of brand presence in the U.S. after Isuzu's departure. However, its ruggedness and off-road appeal create a niche market, meaning well-maintained examples with complete service records can hold their value better among enthusiasts. The cost of potential repairs often outweighs its market value, further depressing prices.
1998 Isuzu Trooper Cost of Ownership
Long-term ownership costs for a 1998 Isuzu Trooper can be a mixed bag. Insurance premiums are generally affordable due to the vehicle's age and lower market value, but can vary based on your driving record and location. Fuel costs are a significant factor; with EPA estimates around 14-18 MPG for its 3.5L V6, it's not an economical vehicle at the pump, especially with rising fuel prices.
Maintenance and repair costs can be moderate to high. While parts for common wear items are available, specific engine or transmission components might be harder to source and more expensive. The known oil consumption issue means frequent oil top-ups, adding to running costs. Addressing potential transmission problems or rust repairs can be costly. It is not an an economical vehicle to own in terms of fuel and potential major repairs, but its initial low purchase price on the used market might offset some of these. Overall, it leans towards being a more costly vehicle to own long-term if not mechanically sound or if neglected.
Maintenance and repair costs can be moderate to high. While parts for common wear items are available, specific engine or transmission components might be harder to source and more expensive. The known oil consumption issue means frequent oil top-ups, adding to running costs. Addressing potential transmission problems or rust repairs can be costly. It is not an an economical vehicle to own in terms of fuel and potential major repairs, but its initial low purchase price on the used market might offset some of these. Overall, it leans towards being a more costly vehicle to own long-term if not mechanically sound or if neglected.
1998 Isuzu Trooper Fuel Efficiency
Fuel Type
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Fuel Capacity
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City Mileage
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Highway Mileage
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1998 Isuzu Trooper Recalls & Defects
Power Train:transfer Case (4-Wheel Drive)
Recall date
1998-08-03
Recall no.
98v180000
Source
NHTSA
Summary
Vehicle Description: Sport Utility Vehicles. THE Transfer Gearbox Flange Nuts Were NOT Properly Installed, Causing THE Nuts TO Loosen.
Consequence
IF THE Flange Nuts Loosen, THE Propeller Shaft CAN Separate, Rendering THE Vehicle Inopeative.
Remedy
Dealers Will Inspect Front and Rear Flange Nuts And, IF Found Loose, Tighten TO Specified Torque and Secured Staked AT Two Places.
Notes
Owner Notification IS Expected TO Begin August 24, 1998. Owners WHO Take Their Vehicles TO AN Authorized Dealer ON AN Agreed Upon Service Date and DO NOT Receive THE Free Remedy Within A Reasonable Time Should Contact Isuzu AT 1-800-643-4070, Ext. 300 or Acura AT 1-800-382-2238.also Contact THE National Highway Traffic Safety Administration's Auto Safety Hotline AT 1-888-dash-2-dot (1-888-327-4236).
1998 Isuzu Trooper Insurance
Insurance for a 1998 Isuzu Trooper is moderately priced, reflecting its status as a Vehicle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1998 Isuzu Trooper Compare to Other Vehicle?
Stacking the 1998 Isuzu Trooper against key rivals reveals its unique position in the mid-size SUV segment of its era. Competitors included the Toyota 4Runner, Nissan Pathfinder, Jeep Grand Cherokee, and the Mitsubishi Montero.
In terms of performance, the Trooper's 3.5L V6 offered competitive horsepower and torque for its class, particularly good for off-road grunt and towing, often surpassing the base engines of some rivals. However, vehicles like the Grand Cherokee with its V8 option or the 4Runner's refined V6 often felt smoother and more responsive on pavement.
Features were comparable, with higher trims of all rivals offering power accessories, AC, and decent audio. The Trooper often lagged in interior refinement and ergonomic design compared to Japanese rivals like the 4Runner and Pathfinder, which typically offered more car-like comfort and better build quality inside.
Reliability is where the Trooper faced significant challenges, primarily due to its widespread oil consumption issues with the 3.5L V6 and potential automatic transmission problems. The Toyota 4Runner and Nissan Pathfinder were generally considered superior in long-term reliability and fewer common major mechanical woes. The Jeep Grand Cherokee also had its share of electrical and quality control issues but was renowned for its off-road capability. The Montero was a strong competitor, often overlooked, offering similar ruggedness.
Price-wise, when new, the Trooper was competitively priced. In the used market today, its price is typically lower than comparable 4Runners of the same vintage, which often command a premium due to their legendary reliability. Pathfinders and Monteros might be found in a similar price bracket, while Grand Cherokees can vary widely.
Recommended alternatives for someone prioritizing extreme reliability and resale value would be the Toyota 4Runner (3rd Gen). For a blend of off-road capability and slightly more refinement, the Nissan Pathfinder (R50) or Mitsubishi Montero (2nd or 3rd Gen) are solid choices. If uncompromising off-road prowess is the main goal and one is prepared for potential maintenance, a Jeep Grand Cherokee (ZJ/WJ) with the 4.0L inline-six or 5.9L V8 could be considered. The Trooper is best for those specifically seeking its unique robust character and willing to manage its known quirks, or for an enthusiast project.
In terms of performance, the Trooper's 3.5L V6 offered competitive horsepower and torque for its class, particularly good for off-road grunt and towing, often surpassing the base engines of some rivals. However, vehicles like the Grand Cherokee with its V8 option or the 4Runner's refined V6 often felt smoother and more responsive on pavement.
Features were comparable, with higher trims of all rivals offering power accessories, AC, and decent audio. The Trooper often lagged in interior refinement and ergonomic design compared to Japanese rivals like the 4Runner and Pathfinder, which typically offered more car-like comfort and better build quality inside.
Reliability is where the Trooper faced significant challenges, primarily due to its widespread oil consumption issues with the 3.5L V6 and potential automatic transmission problems. The Toyota 4Runner and Nissan Pathfinder were generally considered superior in long-term reliability and fewer common major mechanical woes. The Jeep Grand Cherokee also had its share of electrical and quality control issues but was renowned for its off-road capability. The Montero was a strong competitor, often overlooked, offering similar ruggedness.
Price-wise, when new, the Trooper was competitively priced. In the used market today, its price is typically lower than comparable 4Runners of the same vintage, which often command a premium due to their legendary reliability. Pathfinders and Monteros might be found in a similar price bracket, while Grand Cherokees can vary widely.
Recommended alternatives for someone prioritizing extreme reliability and resale value would be the Toyota 4Runner (3rd Gen). For a blend of off-road capability and slightly more refinement, the Nissan Pathfinder (R50) or Mitsubishi Montero (2nd or 3rd Gen) are solid choices. If uncompromising off-road prowess is the main goal and one is prepared for potential maintenance, a Jeep Grand Cherokee (ZJ/WJ) with the 4.0L inline-six or 5.9L V8 could be considered. The Trooper is best for those specifically seeking its unique robust character and willing to manage its known quirks, or for an enthusiast project.
Final Verdict: Is the 1998 Isuzu Trooper a Good Vehicle?
The 1998 Isuzu Trooper is ideal for a specific type of buyer: the enthusiast or the budget-conscious individual seeking a rugged, capable, and somewhat utilitarian SUV for off-road adventures, towing, or general utility work. It's particularly suited for those who appreciate its classic body-on-frame construction and strong drivetrain for challenging conditions.
Is it worth buying? Yes, but under specific conditions. It's definitely a used purchase, and not for the faint of heart. A 1998 Trooper is worth buying if you find one with a documented maintenance history, especially one where the oil consumption issue has been managed or addressed. A pre-purchase inspection by a knowledgeable mechanic is absolutely critical to assess rust, engine health, and transmission condition.
Specific trims like the LS or Limited offer a better balance of comfort and features, but the underlying mechanical concerns remain across all trims. It's not a vehicle for someone seeking modern conveniences, exceptional fuel economy, or worry-free ownership without some mechanical aptitude or a good relationship with a specialist mechanic. For those willing to put in the effort, it offers a distinct, capable, and surprisingly spacious SUV experience at a very affordable price point.
Is it worth buying? Yes, but under specific conditions. It's definitely a used purchase, and not for the faint of heart. A 1998 Trooper is worth buying if you find one with a documented maintenance history, especially one where the oil consumption issue has been managed or addressed. A pre-purchase inspection by a knowledgeable mechanic is absolutely critical to assess rust, engine health, and transmission condition.
Specific trims like the LS or Limited offer a better balance of comfort and features, but the underlying mechanical concerns remain across all trims. It's not a vehicle for someone seeking modern conveniences, exceptional fuel economy, or worry-free ownership without some mechanical aptitude or a good relationship with a specialist mechanic. For those willing to put in the effort, it offers a distinct, capable, and surprisingly spacious SUV experience at a very affordable price point.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.