1991 Isuzu Trooper: Recalls, Problems & MPG
Here are the deets on the 1991 Isuzu Trooper: 2 recalls, 57 owner complaints and up to 15 mpg combined.
Recalls
2 vehicle recalls from the manufacturer, plus 1 equipment/tire recall that can apply. Repairs are free. Check your VIN to see if one is still open on your car.
Transmission & drivetrain Vehicle recall #90V167000 · 1990 · 17,048 vehicles
What's wrong: Putting in more transmission oil than specified can cause oil to bleed through air groove on to the exhaust manifold if oil temperature rises.
Why it matters: This could cause smoke emission from the manifold, whichcould ignite rubber hoses and result in a fire.
The fix: Replace oil level gauge and notify owners to use only the specified amount of automatic transmission fluid.
Engine & cooling Vehicle recall #90V166000 · 1990 · 12,222 vehicles
What's wrong: Improperly installed hose on the oil cooler could come in contact with the exhaust manifold and could melt.
Why it matters: Engine oil could leak out with potential for engineseizure and damage and could result in a fire.
The fix: Properly install cooler hose clip to prevent contact with exhaust manifold.
1 aftermarket equipment / tire recall replacement parts sold to fit this car, not the car itself
Trailer hitch Equipment recall #93E023000 · 1993 · 670 vehicles
What's wrong: The weld on the receiver unit of the trailer hitch can break.
Why it matters: If the failure occurs, the trailer can separate from thetowing vehicle, and could result in a vehicle crash without warning.
The fix: Replace the trailer hitch.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 15 mention a fire, 4 injuries and 3 deaths were reported.
What owners describe
- Engine & cooling (13): the most common themes are fire / smoke (8), leaks (2).
- Transmission & drivetrain (12): the most common themes are leaks (2), hard / delayed shifting (2).
- Wheels (8): the most common themes are tire tread / blowout (3).
- Electrical (7): the most common themes are electrical failure (5), fire / smoke (4), rust / corrosion (2).
The 1991 Isuzu Trooper has 57 owner complaints, ranking #2 of 13 Trooper model years for complaints (about average; the typical year has 40). Complaints peaked in 1996 (13 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 135,000 miles. Neighboring years: 1990 (23 complaints, 2 recalls), 1992 (25 complaints, 2 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 2.6 L 4-cyl | Automatic 4-spd | 4-Wheel or All-Wheel Drive | 14 | 17 | 15 | Regular |
| 2.6 L 4-cyl | Manual 5-spd | 4-Wheel or All-Wheel Drive | 15 | 17 | 15 | Regular |
| 2.8 L 6-cyl | Automatic 4-spd | 4-Wheel or All-Wheel Drive | 14 | 17 | 15 | Regular |
| 2.8 L 6-cyl | Manual 5-spd | 4-Wheel or All-Wheel Drive | 14 | 17 | 15 | Regular |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 1991 Isuzu Trooper.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
Books ~$30–$40 · AllAccess $34.99/moHeads up: we may earn a commission if you buy through these links, at no extra cost to you. Prices checked 2026-10 and can change. We never host or link to pirated manuals. Disclosure
FAQ
Does the 1991 Isuzu Trooper have any recalls?
Yes. NHTSA lists 2 vehicle recalls for the 1991 Isuzu Trooper, plus 1 equipment or tire recalls that can apply. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 1991 Isuzu Trooper problems?
Owners have filed 57 complaints with NHTSA. The most-reported areas are engine & cooling (13), transmission & drivetrain (12), wheels (8).
What gas mileage does the 1991 Isuzu Trooper get?
EPA ratings run up to 15 mpg combined (2.6 L, Automatic 4-spd), across 4 engine and transmission combos.
Where can I get a 1991 Isuzu Trooper repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.