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1998 Isuzu Trooper problems

The most common problem on the 1998 Isuzu Trooper is engine and cooling, typically around 63,344 miles. It has 1.4 times the complaints of a typical Trooper model year.

Typical year1.4x the typical complaints
Owner complaints
42
Recalls
1
Service bulletins
26
Worst area
Engine
Fuel economy
15mpg

The worst 1998 Isuzu Trooper problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Engine
    19
  • Transmission
    6
  • Acceleration
    4
  • Tires
    4
  • Brakes
    3
  • Electrical
    3
  • Airbags
    2
  • Fuel system
    2
  • Visibility
    2
  • Lights
    1
  • Seats
    1

Specific symptoms reported on the 1998 Isuzu Trooper

Engine failure 7Stalling 5

Recalls 1

Power train: transfer case (4-wheel drive)Reported August 3, 1998 · 3,062 vehicles affected
What is wrong
Vehicle description: sport utility vehicles. The transfer gearbox flange nuts were not properly installed, causing the nuts to loosen.
Risk
If the flange nuts loosen, the propeller shaft can separate, rendering the vehicle inopeative.
Remedy
Dealers will inspect front and rear flange nuts and, if found loose, tighten to specified torque and secured staked at two places.

Recall number 98V180000 · Recall details

See all 1 recalls for the 1998 Isuzu Trooper

Technical service bulletins for the 1998 Isuzu Trooper 26

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 26 bulletins for the 1998 Isuzu Trooper

1998 Isuzu Trooper fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
3.5L 6‑cyl4WD13-141815

What 1998 Isuzu Trooper owners say

Most recent owner complaints, unedited.

Filed Mar 19, 2019 · Acceleration, Transmission · 30,000 miles · CA

Tl* the contact owns a 1998 isuzu trooper. The contact stated that the vehicle independently accelerated when shifting from park into any other gear without warning. Also, the rpms increased and the contact had to apply force to the brake pedal to stop the vehicle. An unknown dealer that was no longer in business was contacted. The dealer retained the vehicle for more than two weeks, but they were unable to duplicate the failure. The vehicle was also taken to an independent mechanic. The manufacturer was notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 30,000.

Filed Nov 29, 2010 · Electrical, Fuel system · 86,444 miles · NE

When idling the vehicle is idling very high. Also the check engine light is coming on, and while driving the vehicle as you start to let off the accelerator, the vehicle jerks you, almost to the point of getting whiplash. We have had in the shop at least 3-4 times and lots of times for a week at a time. We were told that the check engine light was due to the gas cap, they replaced that, 2 days later it was back on. They also said it was the fuel sensor, replaced that and its still acting as though its not getting enough gas. As far as the jerking of the vehicle they wont tell us what could be causing that. Also the mechanic stated that there was nothing that they could do to resolve these problems. This vehicle is an accident waiting to take others lives.

Filed Feb 15, 2010 · Engine · 50,000 miles · AE

Engine is exhibiting abnormally high oil consumption. One quart per 500 miles. Imminent engine failure if problem is not corrected.

Filed Aug 6, 2008 · Tires · 119,000 miles · TX

Tl*the contact owns a 1998 isuzu trooper. The vehicle has original bridgestone dueler 684 tires. While driving 65 MPH, the vehicle began to ride as if the tires were unbalanced. The contact attempted to find a safe place to pull over and noticed that the tread completely separated from the front driver side tire. There was no blow out. The contact did not drive over any potholes. The VIN and tire size were unknown. The failure mileage was 119,000.

Filed Jun 22, 2007 · Engine · NC

Using 1 qt oil every 450 miles.

Filed Jan 31, 2007 · Engine · 82,000 miles · IL

I ahve a 1998 isuzu trooper. 3.5 v6. I used 1qt of oil every 500 miles. Isuzu statse this is within specs. I disagree. Several others have had the same problem as well as engines completely needed replacement. Please help in making isuzu of north america own up to this flawed engine.

Filed Apr 25, 2006 · Engine · 63,344 miles · MI

Just bought a 98' trooper with the 3.5l. Drove it for 1 week and got the oil changed. Drove it for another week and the check engine light came on. Took it to an auto parts store and had it checked with a handheld scanner. It said low flow through egr valve. Tech said take it off and clean it, should be ok. Next day on the way home motor starts knocking. Babied it home, now knocking very bad. Checked oil, it was dry. No warning! Nothing! I only went 500 miles after the oil change. The truck is going in for a rebuild. This is going to cost $4000. I have not even made a payment on it yet! This is absurd. Now, after the fact, I have read all the forums on this situation. Too late for me. After all this time how is isuzu not being made to be held responsible for this? What about class action? Seems like a great truck otherwise.

Filed Jan 21, 2006 · Engine · CA

I have a 1998 isuzu trooper with a 3.5l motor and it eats motors oil like no other. It does it everytime I have changed the oil since after about 50k miles. The motor consumes roughly 1qt of oil every 1000 miles, even after a recent oil change. I have looked on countless web sites and forums all over and this is a very common problem. People just do not know about this web site and what you do. This problem will persist and eventually end up in engine failure and can be a very costly problem. Thousands of dollars later and a new motor, one will still have this problem for there is no way to fix it. The drain back holes in the oils rings is what I have been told the problem is. Please contact isuzu about this problem and have then do a recall please! It would save a lot of money for everyone who drives a 3.5l isuzu/acura motor.

Filed Aug 7, 2005 · Engine · 91,000 miles · MN · fire

We were driving in my 1998 isuzu trooper with the 3.5 liter engine and about 90,000 miles on a family vacation to montana, as we came to our destination we were in the mountains. The cruise control was being used in our vehicle and was set at approximately 75 MPH, the montana speed limit. The vehicle had to downshift to go up the mountain side upon getting to the top of the mountain the vehicle quickly began to make a strange noise. Seconds later there was a loud boom and engine parts went flying everywhere, we had dropped 2 pistons out the bottom of the engine and nearly lost control of the car from such bad damage. We quickly pulled over to see what exactly had happened and noticed that the oil leaking from the bottom of the car had caught fire and we had to quickly extinguish it. We then picked up the engine parts from the highway to not hurt other vehicles. We contacted the local police and they aided us in getting to the nearest dealer 110 miles away. The dealer took over a week to replace the engine block and other components for a cost of over $6,000. The engine block and other damaged parts were disposed of properly. Upon returning home and investigating I found that this incident is very common and has cost many people thousands of dollars. I believe that isuzu is aware of this problem and should fix it or reimburse people who have had these problems. This put my families safety and lives in harm and I think isuzu should be held accountable.

Filed Jan 26, 2005 · Engine · 32,000 miles · WV

I purchased a used 1998 isuzu trooper in 1993. The previous owner kept all records of work done, per the manual. From the beginning I complained to the dealership that the car felt as though it was being held back while driving. The dealer checked out my car on two different occassions and found nothing. I then began to notice that I was putting oil in my isuzu every 300-500 miles. I took it to a friends certified mechanic and was told this was a common problem with this vehicle and the engine needed to be replaced. I had also purchased an extended warranty with the vehicle. I called them and they requested all oil change receipts which I supplied. I was then told that I would have to pay $1000.00 to have the engine taken out and at that point they would decide whether it was my fault or a defect. Needless to say I didn't agree with paying $1000.00 since this is a known defect with this vehicle. I called isuzu and they couldn't have cared less. I don't have the $6000.00 needed to replace the engine. When will this finally be remedied? How many complaints have to be filed to make isuzu responsible for a known problem? There are so many complaints about this on the internet, yet people don't seem to know where to turn for help.

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Questions about the 1998 Isuzu Trooper

Is the 1998 Isuzu Trooper reliable?

Owners have filed 42 complaints about the 1998 Isuzu Trooper, 1.4 times a typical Trooper model year.

What is the most common problem with the 1998 Isuzu Trooper?

Engine and cooling, with 19 complaints, typically around 63,344 miles. Next is transmission (6).

How many recalls does the 1998 Isuzu Trooper have?

1 recall, covering power train.

What year does the Isuzu Trooper have bad engine?

The Isuzu Trooper model years with the most engine complaints are 1999 (58 complaints), 2000 (25 complaints) and 1998 (19 complaints).

What gas mileage does the 1998 Isuzu Trooper get?

Official estimates for the 1998 Isuzu Trooper range from 15 mpg combined. The most efficient version (3.5L 6-cyl, 4WD) gets 13-14 city and 18 highway.

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