Isuzu I MARK problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
11 owner complaints analyzed
4 distinct recall campaigns
Not available median reported failure mileage
Scope: 1983 to 1989 model years. Data snapshot: . 0 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Engine And Engine Cooling:Engine:Gasoline is the most frequently named component, appearing in 3 of 11 complaints (27.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 4 | 36.4% |
| Braking behavior | 1 | 9.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine And Engine Cooling:Engine:Gasoline | 3 |
| Electrical System:Ignition:Module | 2 |
| Electrical System:Ignition | 1 |
| Power Train:Driveline:Driveshaft | 1 |
| Power Train:Manual Transmission | 1 |
| Seat Belts | 1 |
| Seat Belts:Front:Buckle Assembly | 1 |
| Seat Belts:Front:Retractor | 1 |
Engine And Engine Cooling:Engine:Gasoline: 3; Electrical System:Ignition:Module: 2; Electrical System:Ignition: 1; Power Train:Driveline:Driveshaft: 1; Power Train:Manual Transmission: 1; Seat Belts: 1; Seat Belts:Front:Buckle Assembly: 1; Seat Belts:Front:Retractor: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 11 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 1995 | 5 |
| 2000 | 2 |
| 2001 | 2 |
| 2002 | 2 |
1995: 5; 2000: 2; 2001: 2; 2002: 2
Pattern summary
Engine And Engine Cooling:Engine:Gasoline leads the component reports. Engine operation appears in 4 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 721203 · 2000-04-09 (April 9, 2000)
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…
Owner-reported narrative. Look up ODI 721203 at NHTSA ↗
Owner report 741920 · 2001-03-05 (March 5, 2001)
THE COMPUTER IN THIS CAR CAUSES FOR AN EXTREMELY ERRATIC IDLE. WHEN THE VEHICLE IS FIRST TURNED ON, THE IDLE SPEED IS NORMAL AND STEADY FOR ABOUT 5 TO 10 SECONDS, AND THEN ALL BETS ARE OFF. SOMETIMES IT GOES UP, SOMETIMES IT GOES DOWN, RANGING ANYWHERE FROM NEAR-STALL TO 3000 RPM. IT DOES THIS EVERY TIME THE CAR IS TURNED ON WHEN COLD, ONLY OCCASIONALLY AFTER IT IS WARMED UP. I WOULD TRY REPAIRING IT, BUT I HAVE A GREAT DEAL OF EXPERIENCE WITH THIS ENGINE/ECU COMBINATION, AND ALMOST ALL OF THEM (INCLUDING DEALER-SUPPLIED REPLACEMENT ECUS, WHICH…
Owner-reported narrative. Look up ODI 741920 at NHTSA ↗
Owner report 971993 · 1995-09-13 (September 13, 1995)
THE FRONT BRAKE PADS WHEN CHANGED LATER THEY COME OFF IN A YEAR DIFFERENT . TT
Owner-reported narrative. Look up ODI 971993 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 2 |
| 1988 | 2 |
| 1989 | 0 |
1983: 1; 1985: 1; 1986: 1; 1987: 2; 1988: 2; 1989: 0