1989 Isuzu I Mark Problems
- Complaints
- 10filed with NHTSA
- Median mileage
- —no mileage reported
- Recalls
- 0campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
- NHTSA crash rating
- —overall rating starts with 2011 models
- EPA fuel economy
- 28 mpgcombined, 1.5L 4-cyl FWD · 26 city / 30 hwy
Sources: NHTSA records for the 1989 Isuzu I Mark (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 10 consumer complaints for the 1989 Isuzu I Mark. The part named most often is electrical system, with 4 complaints (40% of the total), followed by engine cooling (2) and other or unknown (2). NHTSA lists 0 recall campaigns and 3 technical service bulletins for this model year.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Electrical system4 40%
- Engine cooling2 20%
- Other or unknown2 20%
- Brakes1 10%
- Seat belts1 10%
Example complaints
Electrical system: “The ecu has caused erratic engine behaviour and complete engine failure leaving us stranded on numerous occasions. Mechanics have been unable to resolve the issue and the vehicle has been untrustworthy over it's entire life. Many times the ignition system has failed in traffic with our babies in the car leaving us stranded in the heat. This unit should be recalled. It would be nice to have some of the hundreds spent on mis-diagnosis, motel bill's and towing service, etc. Reimbursed by GM/delco -Isuzu. Please contact me if necessary. Dt”
NHTSA complaint #769977, filed 2002-11Engine cooling: “Erratic idle, idle revving and dropping, idle dipping often with engine dying, idle hanging high above 2,000 RPM, and engine dying or stalling for no reason with no trouble codes”
NHTSA complaint #758960, filed 2002-03Other or unknown: “The first ecu failure occurred under warranty and caused the car to barely run. It was replaced by john kraft chevrolet (they no longer sell Isuzu's). During the past 3 yrs/30000 mi I have experienced all of the following: erratic idle, idle revving and dropping (most common), idle hanging high above 2000 RPM, and last but certainly not least, idle dropping with car often stalling. This happens when the clutch is depressed for a stop. The car seems to pick busy intersections to stall. There is a problem with the AC delco ecu used in this car. …”
NHTSA complaint #721203, filed 2000-04Vehicle speed control: “Engine revs up to 2500 rpms while in neutral, then when it's put into gear it will stall out. Mechanic says its the ecu. Problem is hard to duplicate.”
NHTSA complaint #841753, filed 1999-07Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Fuel economy and running cost
EPA ratings for each 1989 Isuzu I Mark version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| I-Mark FWD | 1.5L 4-cyl | 5-speed manual | 31 | 37 | 33 | $2,050 |
| I-Mark FWD | 1.5L 4-cyl | 5-speed manual | 28 | 35 | 31 | $2,150 |
| I-Mark FWD | 1.5L 4-cyl | 3-speed automatic | 26 | 30 | 28 | $2,400 |
| I-Mark FWD | 1.5L 4-cyl | 5-speed manual | 23 | 31 | 26 | $2,600 |
| I-Mark FWD | 1.6L 4-cyl | 5-speed manual | 21 | 29 | 24 | $2,800 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
NHTSA lists no recall campaigns for the 1989 Isuzu I Mark in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 3 on record; the latest 3 are shown.
- 10237146May 8, 2023Other or unknown. 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…
- 10218932Aug 30, 2022Equipment. 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…
- 10218927Aug 2, 2022Equipment. 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…
Other model years of the Isuzu I Mark
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 1989 | 10 | — | 0 | — | 28 | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 1989 Isuzu I Mark have?
NHTSA recorded 10 consumer complaints for the 1989 Isuzu I Mark as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 1989 Isuzu I Mark is reported most often?
Electrical system is named most often, in 4 complaints (40% of the total), followed by engine cooling with 2.
Has the 1989 Isuzu I Mark been recalled?
NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
What gas mileage does the 1989 Isuzu I Mark get?
The EPA rates the 1989 Isuzu I Mark (I-Mark, 1.5L 4-cyl) at 28 mpg combined, 26 city and 30 highway, with an estimated annual fuel cost of $2,400 at 15,000 miles a year. Other engine and drive versions are rated differently.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.