1999 Isuzu TROOPER: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
80 owner complaints analyzed
0 distinct recall campaigns
71,500 mi median reported failure mileage
Scope: 1999 model year. Data snapshot: . 45 complaints include usable failure mileage.
Most common problems
Engine And Engine Cooling:Engine is the most frequently named component, appearing in 29 of 80 complaints (36.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 10 | 12.5% |
| Braking behavior | 10 | 12.5% |
| Engine operation | 9 | 11.3% |
| Electrical and battery issues | 2 | 2.5% |
| Steering behavior | 2 | 2.5% |
| Fuel system concerns | 1 | 1.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine And Engine Cooling:Engine | 29 |
| Engine And Engine Cooling:Engine:Gasoline | 17 |
| Engine And Engine Cooling | 10 |
| Vehicle Speed Control | 7 |
| Power Train:Automatic Transmission | 6 |
| Electrical System | 3 |
| Electrical System:Alternator/Generator/Regulator | 2 |
| Engine | 2 |
Engine And Engine Cooling:Engine: 29; Engine And Engine Cooling:Engine:Gasoline: 17; Engine And Engine Cooling: 10; Vehicle Speed Control: 7; Power Train:Automatic Transmission: 6; Electrical System: 3; Electrical System:Alternator/Generator/Regulator: 2; Engine: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 2 |
| 25,000 to 49,999 | 6 |
| 50,000 to 74,999 | 22 |
| 75,000 to 99,999 | 8 |
| 100,000 to 149,999 | 3 |
| 150,000 and above | 4 |
Under 25,000: 2; 25,000 to 49,999: 6; 50,000 to 74,999: 22; 75,000 to 99,999: 8; 100,000 to 149,999: 3; 150,000 and above: 4
50,000 to 74,999 miles has the most reports with usable mileage (22). 35 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2000 | 4 |
| 2001 | 10 |
| 2002 | 5 |
| 2003 | 8 |
| 2004 | 17 |
| 2005 | 17 |
| 2006 | 8 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2016 | 4 |
| 2019 | 1 |
2000: 4; 2001: 10; 2002: 5; 2003: 8; 2004: 17; 2005: 17; 2006: 8; 2007: 1; 2008: 2; 2009: 1; 2010: 1; 2012: 1; 2016: 4; 2019: 1
Pattern summary
Engine And Engine Cooling:Engine leads the component reports. Transmission and shifting appears in 10 complaint narratives. Braking behavior appears in 10 complaint narratives. Engine operation appears in 9 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10005537 · 2003-02-09 (February 9, 2003)
I HAVE A 1999 ISUZU TROOPER THAT I PURCHASED ON 7/27/02 WITH 67,000 MILES ON THE ODOMETER. IT NOW HAS 72,800 MILES. IT IS A V6 WITH AUTOMATIC TRANSMISSION, AND IS IN EXCELLENT SHAPE. DURING MY OWNERSHIP, AT FOUR SEPARATE OCCASIONS, AS I WAS COMING TO A STOP AT ABOUT THE 5 MPH MARK, THE THROTTLE HAS OPENED FULLY WHILE IN GEAR! I HAVE HAD TO "PANIC BRAKE" THE VEHICLE AND PUSH THE TRANSMISSION SELECTOR TO "NEUTRAL". WHEN I HAVE DONE THIS, THE ENGINE HAS RACED TO 6000 RPM+ AND HELD, SO I HAVE HAD TO TURN-OFF THE IGNITION SWITCH EACH TIME. AFTER GAT…
Owner-reported narrative. 72,800 miles reported. Look up ODI 10005537 at NHTSA ↗
Owner report 10007827 · 2003-02-20 (February 20, 2003)
VEHICLE HAS HAD LARGE NUMBER OF PROBLEMS WHICH LOCAL DEALER AND FACTORY REP. CANNOT IDENTIFY/FIX. AT HIGHWAY SPEEDS (AND SLOWER) CAR WILL SUDDENLY AND VIOLENTLY "SHUDDER" AS IF DYING, ONLY TO THEN RESUME SPEED AS IF NOTHING HAD HAPPENED. ALSO DIES OFTEN AT LIGHTS AND SLOW SPEEDS. DEALER/ISUZU NO HELP. LOOKS LIKE A VERY COMMON PROBLEM WITH THE '99 TROOPER, BASED ON OTHER COMPLAINTS...IF YOU'VE HAD SOME OF THESE 'SYMPTONS,' PLEASE EMAIL ME...PERHAPS WE CAN ASSIST EACH OTHER! EMAIL: [email removed]
Owner-reported narrative. 20,000 miles reported. Look up ODI 10007827 at NHTSA ↗
Owner report 10010347 · 2003-03-12 (March 12, 2003)
MY 1999 TROOPER THREW A ROD IN THE ENGINE. IT IS NOT DRIVABLE. I HAVE HAD THE TROOPER IN THE SHOP 3 TIMES BEFORE WITH OTHER PROBLEMS, BEFORE THE WARRANTY WAS UP. THE DEALER DID NOT WANT TO DISCUSS THE PROBLEM. IN TRYING TO FIND ANOTHER ENGINE I WAS TOLD THAT THIS WAS A COMMON PROBLEM AND THAT IT WAS VERY HARD TO FIND AN ENGINE. NO NEW ONES WERE MADE, NOR WAS A REPAIR KIT.*JB
Owner-reported narrative. 72,000 miles reported. Look up ODI 10010347 at NHTSA ↗
Owner report 10013842 · 2003-04-02 (April 2, 2003)
I PURCHASED MY TROOPER NEW. I HAVE ALL OF THE PRINT OUTS OF THE OIL CHANGES MADE WHICH ARE AT OR BELOW RECOMMENDED INTERVALS. AT APPROXIMATELY. 25000 MILES I REPORTED A SHIFTING PROBLEM AND THEY REPLACED THE TRANSFER CASE BECAUSE METAL FILINGS WERE FOUND IN IT. THEN 2000 MILES LATER THE PROBLEM RE-OCCURRED AND THEY REPLACED THE ENTIRE TRANSMISSION. IT WAS BOUGHT IN BACK 500 MILES LATER FOR AND ADJUSTMENT ON THIS AGAIN. AT 40000 MILES THE CD PLAYER JAMMED AND THEY REPLACED THIS WITH A NEW ONE THAT TOOK 8 WEEKS TO RECEIVE. WE HAD FOLLOWED THE …
Owner-reported narrative. 74,180 miles reported. Look up ODI 10013842 at NHTSA ↗
Owner report 10017723 · 2003-05-07 (May 7, 2003)
DEFECTIVE HEAD GASKET REPLACEMENT. MR. THERE WAS A CRACK IN THE LOWER GASKET. THE MECHANIC STATED THE GASKET MAY BE DEFECTIVE AND THIS PROBLEM SHOULDN'T HAVE HAPPENED THIS EARLY. THE CONSUMER REQUESTED REIMBURSEMENT FOR THE REPAIR(S). SCC *JB
Owner-reported narrative. 58,000 miles reported. Look up ODI 10017723 at NHTSA ↗
Owner report 10023928 · 2003-06-28 (June 28, 2003)
FRONT AND REAR SPEED SENSORS FOR TORQUE ON DEMAND HAVE BOTH GONE BAD WITH LESS THAN 35,000 ON THE VEHICLE. *NLM
Owner-reported narrative. Look up ODI 10023928 at NHTSA ↗
Owner report 10026447 · 2003-07-02 (July 2, 2003)
THE VEHICLE WAS SHUT OFF IN PARK. AFTER SOME TIME THE VEHICLE ROLLED OUT OF THE PARKING GARAGE AND HIT A DRAINAGE POLL. THE CONSUMER MADE AN APPOINTMENT WITH THE DEALER FOR DIAGNOSIS AND REPAIRS. *AK
Owner-reported narrative. Look up ODI 10026447 at NHTSA ↗
Owner report 10052059 · 2003-12-29 (December 29, 2003)
THE OIL LIGHT INDICATOR HAD A DELAY IN INDICATING HOW MUCH OIL WAS IN THE PAN. CONSUMER WAS OUT OF OIL, THEN THE LIGHT ILLUMINATED. DEALER HAS BEEN CONTACTED. *AK
Owner-reported narrative. Look up ODI 10052059 at NHTSA ↗
Recall history
0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
No recall campaigns are recorded in this snapshot.