The positive crankcase ventilation valve may provide inadequate air flow under low engine load conditions.
1983-1989 · 6 model years
Isuzu I Mark Problems by year
Owners have filed 15 complaints about the Isuzu I Mark across 6 model years, and it has 4 recalls. The 1989 has the most complaints once its age is allowed for (10). The most reported problem area is the electrical system, followed by the seats & seat belts.
- Complaints
- 15
- Recalls
- 4
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
I Mark complaints by model year
Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.
Most common I Mark problems
Isuzu I Mark recalls 4
Perforation of the fuel tank or attached fuel feed pipe due to corrosion of the tank or fuel feed pipe materials.
Vehicle may experience perforation of the fuel pump diaphragm. Excessive alcohol content in the fuel promotes degradation of the diaphragm coating resulting in radial cracking of the diaphragm.
The tilt steering wheel lock mechanism that holds the steering wheel in place may break. Failure of the locking mechanism would allow the steering wheel to tilt, unrestrained. The wheel may travel to the high or low position.
Covers1983 Isuzu I Mark
Latest I Mark complaints
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
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
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...
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dealer-supplied replacement ecus, which are frightfully expensive) do this. Thankfully, I am aware of this problem, so when I am in close quarters with a cold engine, I keep my foot on the clutch, ready to spring into action. The car, despite it's mileage, has been very well-taken care of, and has a great deal of power. One time when the power hit (in first gear, coasting with my foot off the gas), it actually spun the tires. Spinning the tires with your foot off the gas is not what I would call a safe condition, especially given that most of them do it. Weren't all the audis recalled for something like this back in the 80's? Please contact me if you would like any more information.*Ak
Ecu has failed, causing erractic idle/ vehicles stalling. Please provide further information. *Ak
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...
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ac delco ecu used in this car. Ac delco used an insulative spray on the circuit boards which shrinks over time when exposed to warm and cold temps. The shrinking insulative spray contracts and pulls the electronic components from the circuit board, breaking solder connections and causing shorts. Gm knows about this fault and has since 1996 used a different spray on their ecu's. Isuzu has refused to recognize any problem at all. I feel vehicles equipped with these defective ecu's should be recalled and the defective parts replaced. My car dying in the middle of traffic poses a significant safety risk to my family and to others and gm/isuzu should replace their defective ecu's.
I have had numerous problems with the car since I bought it. The dealer that I bought the car from said he had fixed the problems, but hadn't. I asked for my money back because I haven't had the car for 20 days yet, and he refused. The car has been broken down ever since I bought the car. The dealer will not do anymore for me. He did not tell me there was anything wrong with the car when I bought it. No safety defect listed in the summary. *Ak
Questions about the Isuzu I Mark
Which Isuzu I Mark years have the most problems?
What are the most common Isuzu I Mark problems?
Across every model year, owners report problems with the electrical system (5), seats & seat belts (4), engine & cooling (3) most often.
How many recalls does the Isuzu I Mark have?
NHTSA lists 4 recalls across all Isuzu I Mark model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data