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EnginePart report

1999 Isuzu Trooper Engine Problems

Complaints
2about this part
Share
2%of 81 total for the year
Median mileage
116,750miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine of the 1999 Isuzu Trooper, 2% of the 81 complaints for this model year. Where a mileage was given, the median is 116,750 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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. …”

NHTSA complaint #10850767, filed 2016-03, 160,500 miles

Engine: other model years

YearComplaintsShare of year
200113%
200024%
199922%
199412%

Other parts of the 1999 Isuzu Trooper

Engine cooling
56 complaints
Transmission and drivetrain
8 complaints
Vehicle speed control
7 complaints
Electrical system
5 complaints
Fuel system
4 complaints
Steering
4 complaints
Brakes
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Equipment
2 complaints
Body and structure
2 complaints
Suspension
2 complaints
Interior lighting
1 complaints

← All problems reported for the 1999 Isuzu Trooper

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology