75000 miles. Burns a quart of oil every few hundred miles. No oil light comes up. I ran it almost out of oil in 06/2018
The worst 1999 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.
- Engine58
- Transmission8
- Acceleration7
- Electrical5
- Fuel system4
- Steering4
- Brakes3
- Visibility3
- Body2
- Suspension2
- Lights1
- Seats1
- Wheels1
Specific symptoms reported on the 1999 Isuzu Trooper
Recalls
No recalls on record for this model year.
Technical service bulletins for the 1999 Isuzu Trooper 20
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The...
- Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to...
- The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various...
- The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic...
- This informational bulletin provides the technician with information on what E85 fuel may due to a non E85...
- Power train: axle assembly
- Transmission indicator light may be on and diagnostic trouble code P1870 is set in the powertrain control...
- Throttle body mounting bolt torque specifications
- Transmission indicator light may be on and diagnostic trouble code P1870 is set in the PCM (powertrain...
- Rear cup holder does not stay in the up position
1999 Isuzu Trooper fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.5L 6‑cyl | 4WD | 13-14 | 18 | 15 |
What 1999 Isuzu Trooper owners say
Most recent owner complaints, unedited.
While driving the vehicle it began to surge as if it was stuck in high gear. The gas peddle seemed to be stuck and the vehicle started to go faster and faster. I applied the brakes and the tires screeched while the vehicle was still in motion forward. I shut off the engine and applied the brakes to stop the auto.
Last 3 weeks - initially seemed like power loss/surge, then heard unusual sound coming from engine compartment 1 week ago, engine started to die while operating on city/residential streets whenever not pushing gas (slowing to turn or stop) friday, would not even hold idle to start, pushed gas and held RPM's at 1 - 1.5 for a while and finally started. Today, initially would not start. Next time started RPM's at over 2, dropped when shifted to reverse, when shifted to drive vehicle accelerated without use of gas pedal up to steady 35 MPH on city street. After 1 mile, at next intersection started making that strange noise in engine compartment (like air or fluid under pressure ie air compressor/high pressure water sound) while pressing brake shifted into neutral RPM's revved to 2.5, in drive and reverse dropped to 1.5, in park revved to 2.5, after turn automobile accelerated to steady 40 MPH on city street without gas being pushed at next stop (1 mile) returned to normal idle and operation. Has problem both when cold and hot weather and cold or hot start. It has not produced a check engine light or any codes
While driving in traffic the accelerator pedal became hard to press then engaged and unable to control speed. All the while franticly applying the brake trying to release the accelerator, I had to force the vehicle into gear [park] where the vehicle then revved into the red zone before putting off. I then tried restarting the vehicle up and again the accelerator remained engaged [stuck] and would not release.
While driving in traffic the accelerator pedal became hard to press then engaged and unable to control speed]. All the while franticly applying the brake an trying to release the accelerator, I had to force the vehicle into gear [park] where the vehicle then revved into the red zone before cutting off. I then tried restarting the vehicle up and again the accelerator remained engaged [stuck] and would not release.
I was traveling on hillen road and e. 33rd st in baltimore, md. The weather was light raining and misty. As I approached 33rd and the alameda I engaged my brakes, the vehicle did not stop at first and heard a loud bang. At first I thought I hit something in the road and had flat tires. I tired to drift out of the intersection into a safe location and put my hazard lights on. My grandson got out of the vehicle and checked for any visual damages. There were none. As I tried to drive out of the flow of traffic the noise was horrific and as if all components of my brakes were rattling within the wheels. I pulled along the side of the road and called for a tow. After inspection at the repair shop I was told that the ABS ring had shattered inside the brake assembly. When I went to the shop, the mechanic showed me what was supposed to be the ABS ring, shattered into many small pieces. Thank god I was able to maneuver the vehicle and avoid what could have been a tragic accident.
99 isuzu trooper 3.5 engine burns oil excessively. I am original owner and regularly serviced per owners manual. At 50k miles, engine oil light turned on 2,500 miles after oil change and was over 4 qts low. Engine now at 60k mi and burning approx. 1 qt per 600-700 miles. Seems to be common engine defect known by mechanics and owners, but isuzu unwilling to acknowledge problem. Though monitoring constantly, I am just waiting for significant engine failure.
Hi, this is the second used car I bough from infinity autos, the first one was a 97 dodge caravan, it had transmission problems right from the beginning I paid $300.00 to fix something in the motor omar from this dealership never took care of this for like he said so I paid off the van I need a newer better car so I traded this car in for a isuzu 1999, I used the van as a down payment +I gave him $300.00 dollars, I told him than march, 2009 this car better be in better condition again he said no problem, there were things on this car that needed to replaced, like panel in the back of the car no spare tire, parts of the car inside were missing no radio, I bought one all these things he said just like my van were not taken care of, I am angry with him because I have been a loyal customer of his, I went back to him because he was the only dealer ship that would give me credit, before this I paid my payments, on time, one time with the van I had ro skip a payment because the van was in the shop, he said he will not reimburse me because I did not let his workers take care of it I took the van back to him three times before it was not taken care of this was with in 30 days of having the van anyway I paid for the repair, he has a copy, but when I went to trade the car in he charged me $300.00 because he said I missed 1 payment I said ok give me this other car, ok I had the car 2 month and my daughter passed away, I called the dealer ship and told him my circumstance, he wanted a $1000.00 deposit and I agreed to come up with it I did not know my daughter was going to die, so when I called them I talk to omar and tonio they said ok, than about 1 week I lost my job, again I called them and asked them if they can lower my payments until I get another job they said no, I said I will come in when I get the money this was in june I paid 2 payments . The car that I was driving now was dangerously defected had been a accident and was stolen car which he charged me full price.
I get frequent oil changes in my 99 isuzu trooper and had just gotten one last month. I had at least 2700 miles before my next one. I was driving down the freeway and I saw smoke coming from my hood and all my dash lights came on like a christmas tree. I pulled over and found out that my engine was on fire. I called the fire dept to put it out and got it towed to my house to later find out that the piston had got thrown from the engine because it locked up due to no oil getting to that piston. So now I have to get a new engine which cost about the same as the car.
I took my '99 isuzu trooper to get an oil change, and 3 weeks later the oil light turned on. I went to the isuzu dealership where I bought the car and after checking the oil, they noticed that there are less than a liter in the engine. They filled it and added a conditioner telling me that that should fix the problem. A few months later, driving back from a trip, the engine began knocking and the oil light came on again. Moments later I lost power (rpms) and pulled the car over. The mechanic who looked at my car told me (and this was confirmed by a consumer report website) that '99 troopers often have "unexplained loss of oil pressure resulting in the engine seizing." the car now needs a new engine (approx 4000-9000 dollars) or a new car. Nothing has been done to correct the failure or defect.
Compare the 1999 Isuzu Trooper
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Questions about the 1999 Isuzu Trooper
Is the 1999 Isuzu Trooper reliable?
Owners have filed 81 complaints about the 1999 Isuzu Trooper, 2.8 times a typical Trooper model year.
What is the most common problem with the 1999 Isuzu Trooper?
Engine and cooling, with 58 complaints, typically around 71,379 miles. Next is transmission (8).
How many recalls does the 1999 Isuzu Trooper have?
No recalls on record.
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 1999 Isuzu Trooper get?
Official estimates for the 1999 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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