What are the common problems with the 1998 Isuzu Trooper?
Owners of the 1998 Isuzu Trooper have filed 42 complaints with NHTSA, most often about engine cooling (19) and the powertrain (6). In NHTSA's complaints file of November 11, 2026, 16 of them list a mileage; a complaint is an owner's report, not a proven defect.
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See what the paid report includes →NHTSA's file holds 42 owner complaints on the 1998 Isuzu Trooper. Owners named engine cooling most often: 19 complaints, and half of the 10 that list a mileage came after 54,000 miles. A complaint can name more than one component. Of the 42 complaints, 2 report a crash, 2 report a fire and 2 report an injury (4 people reported injured). These are owners' reports to NHTSA, not findings.
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Common problems with the 1998 Trooper
NHTSA's file holds 42 owner complaints on the 1998 Isuzu Trooper. Owners named engine cooling most often: 19 complaints, and half of the 10 that list a mileage came after 54,000 miles. A complaint can name more than one component.
| Component (NHTSA category) | Complaints | Listing mileage | Median mileage |
|---|---|---|---|
| Engine And Engine Cooling | 19 | 10 | 55,000 |
| Power Train | 6 | 2 | Under 5 mileages |
| Tires | 4 | 2 | Under 5 mileages |
| Vehicle Speed Control | 4 | 1 | Under 5 mileages |
| Electrical System | 3 | 2 | Under 5 mileages |
Of the 42 complaints, 2 report a crash, 2 report a fire and 2 report an injury (4 people reported injured). These are owners' reports to NHTSA, not findings.
Mileage when owners reported a problem with the 1998 Trooper
The 16 mileages owners gave run from 12,000 to 119,000 miles, and half are at or under 50,000. With fewer than 20 mileages this page gives the median only: the other percentiles are too few to say. 1 came after 100,000 miles, none after 150,000 and none after 200,000.
These mileages say when owners reported a problem, not when a 1998 Trooper wears out. NHTSA's file holds only vehicles whose owners complained; one that ran without a problem never appears in it, so it gives no lifespan and no cutoff, and how a vehicle was maintained matters more than any one odometer reading.
Most of these reports came early in the vehicle's life: 15 of the 16 came at or under 100,000 miles, so they say nothing about how many miles a 1998 Trooper can cover.
| Measure | Value |
|---|---|
| Lowest mileage listed | 12,000 miles |
| 25th percentile | Too few to say |
| Median (50th percentile) | 50,000 miles |
| 75th percentile | Too few to say |
| 90th percentile | Too few to say |
| Highest mileage listed | 119,000 miles |
| Complaints after 100,000 miles | 1 of 16 |
| Complaints after 150,000 miles | none |
| Complaints after 200,000 miles | none |
Is the 1998 Trooper a good year?
Complaint counts cannot say whether the 1998 is a good or a bad Trooper: they rise with how many were sold and how long they have been on the road. They show how the 1998 compares with the other model years in NHTSA's file.
With 42 complaints, the 1998 ranks 7th of the 16 Isuzu Trooper model years from 1986 to 2002 with 10 or more complaints, counting from the most. The most: the 1999 (81). The fewest: the 2002 (12).
Recent model years have had less time to collect complaints, so their counts are still growing. No year is ranked by mileage here, because a year's median mileage mostly follows its age.
| Model year | Owner complaints | Listing mileage | Median mileage |
|---|---|---|---|
| 1986 Trooper | 18 | 1 | Under 10 mileages |
| 1988 Trooper | 17 | 0 | Under 10 mileages |
| 1989 Trooper | 16 | 0 | Under 10 mileages |
| 1990 Trooper | 23 | 1 | Under 10 mileages |
| 1991 Trooper | 57 | 1 | Under 10 mileages |
| 1992 Trooper | 25 | 2 | Under 10 mileages |
| 1993 Trooper | 33 | 5 | Under 10 mileages |
| 1994 Trooper | 47 | 10 | 85,000 |
| 1995 Trooper | 54 | 8 | Under 10 mileages |
| 1996 Trooper | 51 | 5 | Under 10 mileages |
| 1997 Trooper | 13 | 5 | Under 10 mileages |
| 1998 (this page) | 42 | 16 | 50,000 |
| 1999 Trooper | 81 | 45 | 71,500 |
| 2000 Trooper | 49 | 22 | 70,100 |
| 2001 Trooper | 29 | 17 | 80,000 |
| 2002 Trooper | 12 | 6 | Under 10 mileages |
1998 Isuzu Trooper recalls
NHTSA's recall files of November 11, 2026 list 1 recall campaign that names the 1998 Isuzu Trooper. A campaign covers a production range, not every vehicle of the model year: check the VIN with NHTSA's free recall lookup.
| Campaign | Report received | Component |
|---|---|---|
| 98V180000 | Aug 3, 1998 | POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) |
What these figures can and cannot tell you
- Complaints are owners’ reports to NHTSA. NHTSA publishes them without verifying them: a complaint is an allegation, not a defect finding.
- The mileage is what the owner wrote on the complaint; NHTSA does not check it against the odometer.
- The make, model and model year are the ones on the complaint. NHTSA records them as filed, so a few complaints sit under a model year the name was not sold in.
- They are not a lifespan study. The file holds only vehicles whose owners reported a problem, so these figures do not say how long a typical 1998 Trooper lasts.
- A complaint count rises with how many vehicles were sold and how long they have been on the road, so it is not a rating of the 1998 Trooper.
- Nothing here describes one vehicle: its title brands, odometer readings, accidents and open recalls are in the records for its own VIN.
- 26 of the 42 complaints on the 1998 Isuzu Trooper give no usable mileage (blank, zero, a filler such as 999999, or over 500,000) and are left out of every mileage figure.
- NHTSA name counted: TROOPER. NHTSA files some vehicles under several names (a series name and a trim name, for example); this page counts only this one.
- Recall-file name matched: TROOPER.
Primary sources behind this page
Open the underlying public source and verify that its scope matches the question you are asking.
- NHTSA complaints flat file (FLAT_CMPL.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- Complaints file field layout (CMPL.txt)National Highway Traffic Safety Administration
- NHTSA recalls flat file (FLAT_RCL_PRE_2010.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- NHTSA recalls flat file (FLAT_RCL_POST_2010.zip), downloaded November 11, 2026National Highway Traffic Safety Administration
- Recalls file field layout (RCL.txt)National Highway Traffic Safety Administration
- NHTSA recall and complaint datasets: scope and documentationNational Highway Traffic Safety Administration
- Recalls Lookup by VINNational Highway Traffic Safety Administration
NHTSA’s complaints file was downloaded on November 11, 2026 (FLAT_CMPL.txt, dated 2026-11-11 10:15, 2,265,416 rows), with its recall files (FLAT_RCL_PRE_2010.txt and FLAT_RCL_POST_2010.txt, dated 2026-11-11 08:02). Each complaint is counted once, by its NHTSA number, with the model year and mileage of its first row; a model year has a page only with 10 or more complaints. The collection script and its rules are in scripts/collect-nhtsa-model-year-longtail.mjs.
1998 Isuzu Trooper questions
What are the most common 1998 Isuzu Trooper problems?
NHTSA's file holds 42 owner complaints on the 1998 Isuzu Trooper. Owners named engine cooling most often: 19 complaints, and half of the 10 that list a mileage came after 54,000 miles. A complaint can name more than one component. Of the 42 complaints, 2 report a crash, 2 report a fire and 2 report an injury (4 people reported injured). These are owners' reports to NHTSA, not findings.
At what mileage do owners report problems with the 1998 Isuzu Trooper?
Of the 16 complaints on the 1998 Isuzu Trooper that list mileage, half came after 49,000 miles; 1 came after 100,000 miles, none after 150,000 and none after 200,000. With fewer than 20 mileages, the median is the only percentile given. These are mileages at a reported problem; they do not say how many miles a 1998 Trooper can cover.
Is the 1998 Isuzu Trooper a good year?
Complaint counts cannot say whether the 1998 is a good or a bad Trooper: they rise with how many were sold and how long they have been on the road. They show how the 1998 compares with the other model years in NHTSA's file. With 42 complaints, the 1998 ranks 7th of the 16 Isuzu Trooper model years from 1986 to 2002 with 10 or more complaints, counting from the most. The most: the 1999 (81). The fewest: the 2002 (12).
How many recalls does the 1998 Isuzu Trooper have?
NHTSA's recall files of November 11, 2026 list 1 recall campaign that names the 1998 Isuzu Trooper. A campaign covers a production range, not every vehicle of the model year: check the VIN with NHTSA's free recall lookup.
How do I check a used 1998 Isuzu Trooper before buying?
Take the 17-character VIN from the vehicle and compare the odometer with the readings on file for it: title transfers, inspections and auction sales record the mileage on the day. VIN Lookup (free-vin-lookup.com) sells the original ClearVIN PDF for $14.99 (3 reports for $29.99, 5 for $44.99): odometer readings, title brands and auction records on file for the VIN. Check the VIN before buying a used 1998 Isuzu Trooper.