NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
56 reportsClear category filter64,252 miles · Mar 24, 2004
Engine And Engine Cooling
1999 ISUZU TROOPER.. OIL CONSUMPTION LEADING TO SEVERE MOTOR DAMAGE. ( OVER A QUART PER 1,000 MILES) HAVE HEARD OF SEVERAL OF THE SAME INCIDENTS WITH OTHERS DRIVING ISUZU PRODUCTS HAVING THE SAME OUTCOME AS I. A COMPLETE MOTOR OVERHAUL WITH 64,000 MILES ON THIS TROOPER. OTHER INSTANCES WITH FEWER MILES. ISUZU IS AWARE OF THE PRO…
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1999 ISUZU TROOPER.. OIL CONSUMPTION LEADING TO SEVERE MOTOR DAMAGE. ( OVER A QUART PER 1,000 MILES) HAVE HEARD OF SEVERAL OF THE SAME INCIDENTS WITH OTHERS DRIVING ISUZU PRODUCTS HAVING THE SAME OUTCOME AS I. A COMPLETE MOTOR OVERHAUL WITH 64,000 MILES ON THIS TROOPER. OTHER INSTANCES WITH FEWER MILES. ISUZU IS AWARE OF THE PROBLEM, ONLY MANUFACTURED THIS PARTICULAR MODEL FOR TWO YEARS. ISUZU WAS NOTIFIED AND THEN IN RETURN LET MY MECHANIC KNEW WHERE TO BEGIN REPAIRS AND TO WHAT EXTENT THEY WOULD BE. I LIVE IN A VERY RUAL COMMUNITY IN MAINE AND I KNOW OF AT LEAST THREE OTHER INSTANCES WITH THE SAME OUTCOME. MORE IMPORTANTLY ISUZU DOES NOT STAND BEHIND THEIR VEHICLES EVEN WHEN THEY KNOW THERE ARE PROBLEMS. *JB
NHTSA ODI #10063796
Mileage unknown · Dec 29, 2003
Engine And Engine Cooling
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
NHTSA ODI #10052059
58,000 miles · May 7, 2003
Engine And Engine Cooling
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
NHTSA ODI #10017723
74,180 miles · Apr 2, 2003
Engine And Engine CoolingEquipmentPower Train
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 TH…
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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 DIRECTIONS IN THE MANUAL. FOLLOWING THIS, THE CD PLAYER AGAIN JAMMED @ 51,000 MILES AND THEY REFUSED TO REPAIR IT -OUT OF WARRANTY- AT THIS POINT WE REALIZED THAT PART OF THE DIRECTIONS IN THE MANUAL WERE FAULTY. WE DID REPORT THIS TO THE DEALERSHIP TO NO AVAIL. IT IS STILL NOT FIXED BECAUSE THEY WILL NOT RELEASE THE CODE TO REPAIR IT. EACH OF THE TIMES THAT WE HAVE HAD THIS IN WHILE STILL UNDER WARRANTY, WE HAVE HAD TO COMPLAIN TO RECEIVE A RENTAL/LOANER CAR WHILE IT WAS IN FOR SEVERAL DAYS AT A TIME. THEN AT 60000, THERE IS AN EVAP. CODE THAT INDICATES THERE IS AN ISSUE WITH THE VENT VALVE AND IT IS NOT PERFORMING CORRECTLY, BUT THE DEALERSHIP HAS TOLD ME 3 DIFFERENT TIMES THAT IT HAS BEEN IN 3 DIFFERENT CAUSES. NOW AT 74,000 MILES , I HAVE JUST BEEN INFORMED THAT THE SHORT BLOCK HAS TO BE REPLACED AND THE HEADS MAY BE CRACKED. THE LAST OIL CHANGE WAS AT 71,800 MILES AND THE OIL LIGHT DID NOT COME ON. THEY CLAIM THAT THERE WAS NO OIL IN THE ENGINE BUT, THE OIL DIPSTICK SAYS THAT THERE IS A PROPER AMOUNT. THIS IS A 7400+ REPAIR. THIS IS THE 12 THE TIME THIS VEHICLE HAS BEEN IN TO THE DEALERSHIP. ALL REPAIRS HAVE BEEN DONE BY AN AUTHORIZED DEALER. *NLM
NHTSA ODI #10013842
72,000 miles · Mar 12, 2003
Engine And Engine Cooling
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 ENGIN…
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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
NHTSA ODI #10010347
72,800 miles · Feb 9, 2003
Engine And Engine Cooling
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 …
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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 GATHERING MY NERVES, I HAVE RESTARTED THE ENGINE. THE FIRST THREE OCCURRENCES HAPPENED IN TRAFFIC, SO THE PROBLEM HAS BEEN A REAL SAFETY CONCERN. LAST NIGHT, THIS PROBLEM HAPPENED IN MY OWN DRIVEWAY. I NEARLY "TOOK-OUT" MY GARAGE. AFTER KEYING-OFF THE IGNITION, I RESTARTED THE ENGINE. THE ENGINE RACED A SECOND TIME WHILE THE TRANSMISSION WAS IN "NEUTRAL", SO I SHUT IT OFF AGAIN. I THEN TURNED IT ON AGAIN AND THE ENGINE WENT TO IDLE. THIS PROBLEM IS PRETTY "HAIRY", AND ON MONDAY I INTEND TO CALL THE LOCAL ISUZU DEALER (BILLINGS, MONTANA). BUT, I REALLY THINK THIS COMPLAINT NEEDS TO BE BROUGHT TO THE ISUZU TECHNICAL PEOPLE. THANKS FOR YOUR TIME.
NHTSA ODI #10005537
Mileage unknown · Jul 5, 2002
Engine And Engine Cooling
VEHICLE STALLS INTERMITTENTLY WHEN SLOWING DOWN OR WHEN COMING TO A STOP. DEALER CANNOT FIND CAUSE OF PROBLEM. *AK
NHTSA ODI #8013304
Mileage unknown · Jan 9, 2002
Engine And Engine CoolingInterior Lighting
WHILE DRIVING DASH LIGHTS ILLUMINATED, AND ENGINE COMPLETELY SHUT DOWN. CAUSE UNKNOWN. TAKEN TO DEALER A TOTAL OF FOUR TIMES. PLEASE PROVIDE ANY FURTHER INFORMATION.*AK
NHTSA ODI #8001866
Mileage unknown · Dec 19, 2001
Engine And Engine Cooling
ENGINE FAILURE WHILE PASSING ON STATE HIGHWAY AT APPROX. 65MPH. LAST SEVICE AT 55,000 MILES. ENGINE HAD OIL. NO WARNING INDICATORS BEFORE OR AFTER FAILURE. DEALER STATES PISTON ROD THROWN. LOCAL ENGINE SHOP STATES THIS IS A COMMON PROBLEM WITH THIS ENGINE. *AK
NHTSA ODI #755845
Mileage unknown · Nov 21, 2001
Engine And Engine Cooling
THIS CAR HAS BEEN A NIGHTMARE. BASICALLY AN ACCIDENT WAITING TO HAPPEN. THE MANUFACTURER AND DEALERSHIP HAVE GIVEN US THE RUN AROUND ON THE VEHICLE. IT STALLS WHEN THE VEHICLE COMES TO A SLOW. OCCURS AT MAJOR INTERSECTIONS WHEN TURNING OR WAITING TO TURN. HAS BEEN SERVICED 8-9 TIMES FOR SAME PROBLEM. 3RD TIME THIS PAST MON…
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THIS CAR HAS BEEN A NIGHTMARE. BASICALLY AN ACCIDENT WAITING TO HAPPEN. THE MANUFACTURER AND DEALERSHIP HAVE GIVEN US THE RUN AROUND ON THE VEHICLE. IT STALLS WHEN THE VEHICLE COMES TO A SLOW. OCCURS AT MAJOR INTERSECTIONS WHEN TURNING OR WAITING TO TURN. HAS BEEN SERVICED 8-9 TIMES FOR SAME PROBLEM. 3RD TIME THIS PAST MONTH. CAR BREAKS DOWN ON WAY BACK FROM DEALERSHIP! GETTING NO HELP FROM ISUZU INCORPORATED. *AK
NHTSA ODI #754771