Model year guide

1990 Isuzu Trooper

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 1990 Isuzu Trooper is worth — from official NHTSA and EPA data. 12 on record.

1990 Isuzu Trooper — representative photo
Representative photo

1990 Isuzu Trooper at a glance

Safety recalls3
Owner complaints34
Combined15 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

1990 Isuzu Trooper recalls 3

Trailer Hitches NHTSA Campaign #93E023000 · 22/07/1993

THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK.

Fix: REPLACE THE TRAILER HITCH.

Engine And Engine Cooling:cooling System:hoses/lines/piping/fittings NHTSA Campaign #90V166000 · 20/09/1990

IMPROPERLY INSTALLED HOSE ON THE OIL COOLER COULD COME IN CONTACT WITH THE EXHAUST MANIFOLD AND COULD MELT.

Fix: PROPERLY INSTALL COOLER HOSE CLIP TO PREVENT CONTACT WITH EXHAUST MANIFOLD.

Power Train:automatic Transmission NHTSA Campaign #90V167000 · 20/09/1990

PUTTING IN MORE TRANSMISSION OIL THAN SPECIFIED CAN CAUSE OIL TO BLEED THROUGH AIR GROOVE ON TO THE EXHAUST MANIFOLD IF OIL TEMPERATURE RISES.

Fix: REPLACE OIL LEVEL GAUGE AND NOTIFY OWNERS TO USE ONLY THE SPECIFIED AMOUNT OF AUTOMATIC TRANSMISSION FLUID.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

1990 Isuzu Trooper common problems

The most-reported problem areas across all 34 owner complaints filed with NHTSA — and what to check before you buy.

Engine And Engine Cooling
Check coolant level and color, look for leaks, and confirm the engine reaches normal temperature without overheating.
Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Tires
Check tread depth, the DOT age date, and that all four tires match with even wear. Look for bulges or cracks.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Hydraulic
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.

1990 Isuzu Trooper safety ratings

Frontal crash★★★★★
Frontal — driver★★★★★
Frontal — passenger★★★★★

Source: NHTSA 5-Star Safety Ratings (NCAP), tested as the 1990 Isuzu Trooper II 4-DR. 4x4. Ratings can differ by body style and drivetrain.

1990 Isuzu Trooper MPG & running costs

Combined15 mpg
City14 mpg
Highway17 mpg
Est. annual fuel cost$4,450
EPA size classSpecial Purpose Vehicles
TransmissionAutomatic 4-spd or Manual 5-spd
5-yr fuel cost vs average new car$10,250 more

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 4 versions of this model year; combined is shown as a range and the other figures are averages.

Estimated 5-year cost to own

A rough guide to what running a 1990 Isuzu Trooper costs over five years and 75,000 miles.

Fuel (5 yrs)$22,250
Fuel only$22,250
Per mile$0.30

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
176.0 in
Width
65.0 in
Height
71.7 in
Wheelbase
104.3 in
Curb weight
3,708–3,768 lb
Front track
55.1–55.9 in
Rear track
55.5–55.9 in

Manufacturer-reported figures for the 1990 Isuzu Trooper — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

NHTSA defect investigations 7

TAKATA SEAT BLT BCKLS FAIL Closed

NHTSA #PE94085 · Seat Belts · opened Nov 1994 · closed Mar 1995

ENGINE COMPARTMENT FIRES Closed

ENGINE COMPARTMENT FIRES

NHTSA #DP92015 · Engine And Engine Cooling · opened Jul 1992 · closed Nov 1992

HEATER CORE FAILURE Closed

NHTSA #EA92018 · Visibility · opened Jun 1992 · closed Apr 1993

DEFECTIVE HEATER CORES Closed

DEFECTIVE HEATER CORES

NHTSA #DP92005 · Visibility · opened Mar 1992 · closed Jun 1992

REAR DOOR HINGE SEPARATION Closed

NHTSA #EA91033 · Structure · opened Jul 1991 · closed Jul 1992

REAR DOOR HINGE SEPARATION Closed

NHTSA #PE91046 · Structure · opened Feb 1991 · closed Jul 1991

DIESEL ENGINE SURGE Closed

NHTSA #PE90087 · Engine And Engine Cooling · opened Jun 1990 · closed Oct 1990

An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.

Manufacturer service bulletins 5

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered.

This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio…

Bulletin IB13-R-001G · May 2023

This bulletin provides instructions with regard to the Isuzu Commercial Vehicle (CV) Warranty Parts Center on the topics of parts retention, parts preparation for shipping, and administration. NOTE: Effective June 1, 2021, dealers/service centers must return p…

Bulletin WB08-X-001I · Equipment · May 2023

Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts War…

Bulletin WB13-X-001B · Equipment · Aug 2022

Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts War…

Bulletin WB13-X-001A · Equipment · Aug 2022

THIS TECHNICAL SERVICE BULLETIN OUTLINES THE DETAILED PROCEDURES FOR THE AIR CONDITIONING SYSTEM CONVERSION / RETROFIT. *TT

Bulletin SB0012S002 · Equipment · Mar 2000

Source: NHTSA Office of Defects Investigation, listed for the TROOPER. Model-year data, not specific to one car.

Canadian recalls 1

Transport Canada recall campaigns for the 1990 Isuzu Trooper. Relevant if the car was first sold in, or imported from, Canada.

Powertrain

NOTE: VEHICLES EQUIPPED WITH V6 ENGINE AND AUTOMATIC TRANSMISSION. THE AUTOMATIC TRANSMISSION DIPSTICK MUST BE PROPERLY REINSTALLED AFTER CHECKING THE FLUID LEVEL. IF THE DIPSTICK IS NOT LOCKED, LEAKING AUTOMATIC TRANSMISSION FLUID MAY CONTACT THE EXHAUST MANIFOLD AND RESULT IN AN ENGINE COMPARTMENT FIRE. CORRECTION: A WARNING TAG WILL BE INSTALLED TO THE DIPSTICK CAP TO SERVE…

Transport Canada #1993133 · Sep 1993

Source: Transport Canada Motor Vehicle Safety Recalls Database.

About the Isuzu Trooper

The Isuzu Trooper is a mid-size SUV manufactured and marketed by Isuzu between September 1981 and September 2002 over two generations, the first, produced between 1981 and 1991; and the second (UBS) produced between 1991 and 2002, the latter with a mid-cycle refresh in 1998. In its earliest iterations, the Trooper was based on the company's first generation Isuzu Faster/Chevrolet LUV pickup.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

1990 Isuzu Trooper vehicles on record

Other Isuzu Trooper model years

1990 Isuzu Trooper — frequently asked questions

Does the 1990 Isuzu Trooper have any safety recalls?

NHTSA lists 3 recall campaigns for the 1990 Isuzu Trooper. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 1990 Isuzu Trooper?

Across all 34 owner complaints filed with NHTSA, the most-reported problem areas are engine and engine cooling, power train, tires.

What is the 1990 Isuzu Trooper safety rating?

NHTSA gives the 1990 Isuzu Trooper crash-test ratings of frontal 1★ (out of 5; this model year pre-dates NHTSA's overall score).

What gas mileage does the 1990 Isuzu Trooper get?

The 1990 Isuzu Trooper has a U.S. EPA estimate of 15 mpg combined (14 city / 17 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.