Tl* the contact owns a 1991 isuzu trooper. The contact stated that the accelerator cable was stuck which caused the accelerator pedal not to release. The failure was progressing more frequently. The contact stated that the engine speed would not immediately decrease upon the release of the accelerator pedal and the vehicle was pulled over to adjust the pedal; however, the failure recurred intermittently. The vehicle was not included in the federal safety agency campaign number: 04v199000 (vehicle speed control). The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 135,000. Updated 5/29/15
The worst 1991 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.
- Engine12
- Transmission12
- Wheels8
- Electrical7
- Fuel system6
- Acceleration5
- Tires4
- Brakes3
- Body2
- Lights2
- Seat belts2
- Suspension2
- Seats1
Specific symptoms reported on the 1991 Isuzu Trooper
Recalls 2
Engine and engine cooling: cooling system: hoses/lines/piping/fittings
- What is wrong
- Improperly installed hose on the oil cooler could come in contact with the exhaust manifold and could melt.
- Risk
- Engine oil could leak out with potential for engineseizure and damage and could result in a fire.
- Remedy
- Properly install cooler hose clip to prevent contact with exhaust manifold.
Recall number 90V166000 · Recall details
Power train: automatic transmission
- What is wrong
- Putting in more transmission oil than specified can cause oil to bleed through air groove on to the exhaust manifold if oil temperature rises.
- Risk
- This could cause smoke emission from the manifold, whichcould ignite rubber hoses and result in a fire.
- Remedy
- Replace oil level gauge and notify owners to use only the specified amount of automatic transmission fluid.
Recall number 90V167000 · Recall details
See all 2 recalls for the 1991 Isuzu Trooper
Defect investigations
Engine compartment fires
Engine compartment fires
DP92015
Heater core failure
There is no summary currently available
EA92018
Defective heater cores
Defective heater cores
DP92005
Rear door hinge separation
There is no summary currently available
EA91033
Rear door hinge separation
There is no summary currently available
PE91046
Technical service bulletins for the 1991 Isuzu Trooper 4
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...
- This technical service bulletin outlines the detailed procedures for the air conditioning system...
1991 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 |
|---|---|---|---|---|
| 2.6L 4‑cyl | 4WD | 14-15 | 17 | 15 |
| 2.8L 6‑cyl | 4WD | 14 | 17 | 15 |
What 1991 Isuzu Trooper owners say
Most recent owner complaints, unedited.
While applying the brake pedal consumer heard a loud squeaking noise and vehicle vibrated uncontrollably. Vehicle was taken to the dealer for inspection, and mechanic determined that the brake pads needed to be replaced. Also, consumer noticed that while applying the accelerator pedal vehicle failed to move and the accelerator pedal stuck.
Intermittently while driving between 50 to 60 MPH and shifting from lower to higher lever gear vehicle experience sudden acceleration.
Vehicle's engine compartment caught on fire.*mr consumer was at a toll both when she noticed smoke coming from the engine compartment. She pull over into the employee parking lot and exited the vehicle with three other occupants. The fire was extinguished by the fire department. There were no injuries. *ph
There was a recall regarding the automatic transmission, however consumer was informed vehicle was not included due to the vehicle identification number.
No summary listed for above vehicle.
Original equipment on 1991, trooper, p235/75r15 size. Tread on left rear tire separated at highway speeds. *ak consumer states vibration started at 40 MPH and the failure was sudden, bridgestone desert dueler tire.
Pe00 020; consumer was traveling 75mph on highway and lost control of vehicle because rear tire tread separated from tire, and flipped multiple times. *ak driver died from head injuries, I person was injured, tires were bridgestone desert dueller, size p235/75r15, dot wk13356.
Transmission was replaced 3 times due to failure or leakage and this transmission was showing signs of slippage after driving 40 miles on highway. Trooper was being operated on I-895 in baltimore at 50 MPH when smoke was seen in rear view mirror. Trooper was pulled to side and son exited vehicle to check engine. Trooper immediately burst into flames resulting in a total loss of vehicle and contents.
Tire tread separated, firestone style. Same thing happened a couple years ago with the same tire type on the same car. (dot number: hyhlf75195 tiresize: 23575r15)
Compare the 1991 Isuzu Trooper
Other model years
Questions about the 1991 Isuzu Trooper
Is the 1991 Isuzu Trooper reliable?
Owners have filed 56 complaints about the 1991 Isuzu Trooper, 1.9 times a typical Trooper model year.
What is the most common problem with the 1991 Isuzu Trooper?
Engine and cooling, with 12 complaints. Next is transmission (12).
How many recalls does the 1991 Isuzu Trooper have?
2 recalls, covering engine and engine cooling and power train.
Was there a recall on the 1991 Isuzu Trooper engine?
Yes, 1 recall: 90V166000. Check your VIN to see if your car still needs the free repair.
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 1991 Isuzu Trooper get?
Official estimates for the 1991 Isuzu Trooper range from 15 mpg combined. The most efficient version (2.6L 4-cyl, 4WD) gets 14-15 city and 17 highway.
VIN decoder
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