ISUZU TROOPER (1984–2002): Full Technical Specs & OBD2 Diagnostics
Built 1984–2002 · all production years covered on this single page
3.2L V6 • Gasoline
2002
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Every figure on this Isuzu Trooper (1984–2002) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.
The Isuzu Trooper (1984–2002) is powered by a 3.2L V6 engine. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.
Common problems
Common repairs
Fluids & lubricants
Battery
Fault codes (OBD2)
Dashboard lights
Parts comparator
Accessories & tools
Tyres
Recalls & TSB
Complaints
Workshops nearby
COMMON PROBLEMS
Transmission fault signal (TCM)MODERATE
The transmission module detected a fault — check separate transmission codes.
Related codes: P0700
Misfire / Loss of cylinderMODERATE
Rough running, idle vibration, power loss.
Related codes: P0300
Thermostat: coolant temperature lowLOW
Thermostat stuck open — engine does not reach operating temperature.
Related codes: P0128
Battery/system voltage lowLOW
System voltage below 10V — check alternator, battery or wiring.
Related codes: P0562
P0011LOW
Check with an OBD2 scanner.
Related codes: P0011
AVERAGE INDICATIVE COSTS
Prices may vary by area and workshop.
Full service
€ 120 – € 200
Full brake service
€ 180 – € 300
Spark plug replacement
€ 80 – € 140
Electronic diagnosis
€ 40 – € 70
WORKSHOP LABOUR RATES BY COUNTRY
Average independent-workshop hourly labour rates, to estimate repair costs in your country.
🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
📋 RECALLS & TSB (28)
NHTSA R/2004/195
Heater Terminal May Burn Out
Date: 30-06-2005
If the ceramic heater is used on full for an extended period of time the heater terminal may burn out. Although there have been no fires to date there is a very slight possibility that combustion could occur.
NHTSA 92V093000
Structure › Body › Door › Hinge And Attachments
Date: 27/07/1992
TRUCKS USED IN THE SALT-BELT STATES CAN HAVE ACCUMULATED CORROSION IN THE HINGES OF THE REAR DOORS. IF THE VEHICLES ALSO HAVE MISALIGNED DOOR LATCHES AND STRIKERS, IT IS POSSIBLE TO CLOSE THE DOORS IN A "FALSE LATCH" CONDITION.
NHTSA 92V093000
Structure › Body › Door › Hinge And Attachments
Date: 27/07/1992
TRUCKS USED IN THE SALT-BELT STATES CAN HAVE ACCUMULATED CORROSION IN THE HINGES OF THE REAR DOORS. IF THE VEHICLES ALSO HAVE MISALIGNED DOOR LATCHES AND STRIKERS, IT IS POSSIBLE TO CLOSE THE DOORS IN A "FALSE LATCH" CONDITION.
NHTSA 92V093000
Structure › Body › Door › Hinge And Attachments
Date: 27/07/1992
TRUCKS USED IN THE SALT-BELT STATES CAN HAVE ACCUMULATED CORROSION IN THE HINGES OF THE REAR DOORS. IF THE VEHICLES ALSO HAVE MISALIGNED DOOR LATCHES AND STRIKERS, IT IS POSSIBLE TO CLOSE THE DOORS IN A "FALSE LATCH" CONDITION.
NHTSA 92V093000
Structure › Body › Door › Hinge And Attachments
Date: 27/07/1992
TRUCKS USED IN THE SALT-BELT STATES CAN HAVE ACCUMULATED CORROSION IN THE HINGES OF THE REAR DOORS. IF THE VEHICLES ALSO HAVE MISALIGNED DOOR LATCHES AND STRIKERS, IT IS POSSIBLE TO CLOSE THE DOORS IN A "FALSE LATCH" CONDITION.
NHTSA 93E023000
Trailer Hitches
Date: 22/07/1993
THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK.
NHTSA 93E023000
Trailer Hitches
Date: 22/07/1993
THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK.
NHTSA 93E023000
Trailer Hitches
Date: 22/07/1993
THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK.
NHTSA 93E023000
Trailer Hitches
Date: 22/07/1993
THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK.
NHTSA 04V199000
Vehicle Speed Control › Cables
Date: 22/04/2004
ON CERTAIN SPORT UTILITY VEHICLES, THE ACCELERATOR CABLE CAN STICK SO THAT THE ENGINE SPEED WILL NOT IMMEDIATELY DECREASE UPON RELEASE OF THE ACCELERATOR PEDAL.
NHTSA 04V199000
Vehicle Speed Control › Cables
Date: 22/04/2004
ON CERTAIN SPORT UTILITY VEHICLES, THE ACCELERATOR CABLE CAN STICK SO THAT THE ENGINE SPEED WILL NOT IMMEDIATELY DECREASE UPON RELEASE OF THE ACCELERATOR PEDAL.
NHTSA 04V199000
Vehicle Speed Control › Cables
Date: 22/04/2004
ON CERTAIN SPORT UTILITY VEHICLES, THE ACCELERATOR CABLE CAN STICK SO THAT THE ENGINE SPEED WILL NOT IMMEDIATELY DECREASE UPON RELEASE OF THE ACCELERATOR PEDAL.
NHTSA 04V199000
Vehicle Speed Control › Cables
Date: 22/04/2004
ON CERTAIN SPORT UTILITY VEHICLES, THE ACCELERATOR CABLE CAN STICK SO THAT THE ENGINE SPEED WILL NOT IMMEDIATELY DECREASE UPON RELEASE OF THE ACCELERATOR PEDAL.
NHTSA 94V132000
Engine And Engine Cooling › Engine
Date: 19/07/1994
CONSTANT EXPANSION AND CONTRACTION OF THE CYLINDER HEAD CAUSES THE CAMSHAFT SEAL END PLUG CAN BECOME DISLODGED FROM THE CYLINDER HEAD. THIS ALLOWS OIL TO LEAK FROM THE CAMSHAFT.
NHTSA 94V132000
Engine And Engine Cooling › Engine
Date: 19/07/1994
CONSTANT EXPANSION AND CONTRACTION OF THE CYLINDER HEAD CAUSES THE CAMSHAFT SEAL END PLUG CAN BECOME DISLODGED FROM THE CYLINDER HEAD. THIS ALLOWS OIL TO LEAK FROM THE CAMSHAFT.
NHTSA 94V132000
Engine And Engine Cooling › Engine
Date: 19/07/1994
CONSTANT EXPANSION AND CONTRACTION OF THE CYLINDER HEAD CAUSES THE CAMSHAFT SEAL END PLUG CAN BECOME DISLODGED FROM THE CYLINDER HEAD. THIS ALLOWS OIL TO LEAK FROM THE CAMSHAFT.
NHTSA R/2011/154
Engine Speed May Increase Unintentionally
Date: 15-01-2012
It is possible that the internal contact resistance of the crimped joints for the grounding between the throttle position sensor (TPS) and engine control module may increase due to engine vibration. This can lead to an increased TPS voltage output which could lead to an increase …
NHTSA 00V376000
Engine And Engine Cooling › Engine › Gasoline
Date: 14/11/2000
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES EQUIPPED WITH 4-WHEEL DRIVE AND AUTOMATIC TRANSMISSIONS BUILT WITH TOD (TORQUE-ON-DEMAND). IN CERTAIN HIGH SPEED, FRONTAL CRASHES, MOVEMENT OF ENGINE COMPARTMENT COMPONENTS CAN CAUSE THE POTENTIAL FOR FUEL LEAKAGE.
NHTSA 00V376000
Engine And Engine Cooling › Engine › Gasoline
Date: 14/11/2000
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES EQUIPPED WITH 4-WHEEL DRIVE AND AUTOMATIC TRANSMISSIONS BUILT WITH TOD (TORQUE-ON-DEMAND). IN CERTAIN HIGH SPEED, FRONTAL CRASHES, MOVEMENT OF ENGINE COMPARTMENT COMPONENTS CAN CAUSE THE POTENTIAL FOR FUEL LEAKAGE.
NHTSA 96V248001
Seat Belts › Rear/Other
Date: 12/12/1996
CERTAIN VEHICLES WERE MANUFACTURED WITH AN INCORRECT REAR CENTER SEAT BELT ASSEMBLY BUCKLE. THE MISBUILD INVOLVED FITTING A BUCKLE FOR ANOTHER MARKET WITH THE CORRECT U.S. SPECIFICATION SEAT BELT.
NHTSA 97V035001
Suspension
Date: 11/03/1997
THESE VEHICLES WERE MANUFACTURED WITHOUT A LOCK WASHER AND/OR SCREWS IN THE FRONT HUB.
NHTSA 00V253000
Fuel System, Gasoline › Delivery
Date: 07/09/2000
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES EQUIPPED WITH 4-WHEEL DRIVE AND AUTOMATIC TRANSMISSIONS BUILT WITH TOD (TORQUE-ON-DEMAND). IN CERTAIN HIGH SPEED FRONTAL CRASHES, AN INTERIOR FUEL LINE AND FUEL HOSE CAN BE SEPARATED, ALLOWING FUEL TO LEAK.
NHTSA 89V001000
Visibility › Defroster/Defogger/Hvac System
Date: 04/12/1989
DUE TO INSUFFICIENT CLEARANCE BETWEEN A BOLT THAT FIXES THE HEATER TO THE VEHICLE BODY AND A FUEL DELIVERY PIPE AND BETWEEN A REAR HEATER HOSE CLIP, USE UNDER SERVERE CONDITIONS COULD CAUSE PIPE RUPTURE AND FUEL LEAKAGE.
NHTSA 89V001000
Visibility › Defroster/Defogger/Hvac System
Date: 04/12/1989
DUE TO INSUFFICIENT CLEARANCE BETWEEN A BOLT THAT FIXES THE HEATER TO THE VEHICLE BODY AND A FUEL DELIVERY PIPE AND BETWEEN A REAR HEATER HOSE CLIP, USE UNDER SERVERE CONDITIONS COULD CAUSE PIPE RUPTURE AND FUEL LEAKAGE.
NHTSA 98V180000
Power Train › Transfer Case (4-Wheel Drive)
Date: 03/08/1998
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES. THE TRANSFER GEARBOX FLANGE NUTS WERE NOT PROPERLY INSTALLED, CAUSING THE NUTS TO LOOSEN.
NHTSA 97V092001
Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, And Fittings
Date: 03/06/1997
THE LEFT FRONT BRAKE LINES WERE INSTALLED IMPROPERLY AT THE ASSEMBLY LINE RESULTING IN INSUFFICIENT CLEARANCE BETWEEN THE BRAKE LINE AND AN UPPER CONTROL ARM OF THE SUSPENSION.
NHTSA 97V092001
Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, And Fittings
Date: 03/06/1997
THE LEFT FRONT BRAKE LINES WERE INSTALLED IMPROPERLY AT THE ASSEMBLY LINE RESULTING IN INSUFFICIENT CLEARANCE BETWEEN THE BRAKE LINE AND AN UPPER CONTROL ARM OF THE SUSPENSION.
NHTSA R/2005/179
Dilution Of Engine Oil Leading To Engine Damage
Date: 03-03-2006
Due to excessive clearance within the fuel injectors fuel may leak into the cylinder bores and then into the sump causing engine oil dilution. If this situation is ignored engine damage can occur additionally the engine revs may show an unintentional increase.
COMMON OBD2 CODES TO CHECK
P0420
P0420
Powertrain
P0171
P0171
Powertrain
P0300
P0300
Powertrain
P0128
P0128
Powertrain
P0455
P0455
Powertrain
P0700
P0700
Transmission
P0442
P0442
Powertrain
P0172
P0172
Powertrain
P0401
P0401
Powertrain
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
P0455
powertrain
LOW⏱ 0.62h avgP0442
powertrain
LOW⏱ 0.62h avgP0440
powertrain
LOW⏱ 0.78h avgP0420
powertrain
MEDIUM⏱ 1.24h avgP0300
powertrain
HIGH⏱ 1.22h avgP0172
powertrain
MEDIUM⏱ 1.13h avgP0171
powertrain
MEDIUM⏱ 0.95h avgP0730
transmission
MEDIUM⏱ 1.25h avgP0700
transmission
HIGH⏱ 1.25h avgP0401
powertrain
MEDIUM⏱ 1.25h avgP0011
powertrain
MEDIUM⏱ 5.4h avgU0100
network
HIGHP0562
electrical
MEDIUM⏱ 0.58h avgP0128
powertrain
MEDIUM⏱ 0.88h avg
DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE
53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.
Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
Brake System WarningBrakes
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
Battery / Charging SystemElectrical
Low Fuel WarningFuel
ABS WarningBrakes
Brake Pad Wear IndicatorBrakes
Electronic Parking Brake (EPB)Brakes
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
Suspension Fault / Air SuspensionSuspension
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
4WD / AWD SystemDrivetrain
Bulb Failure WarningLighting
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
A/C System FaultHvac
Clutch Wear WarningTransmission
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
Rear Fog Light IndicatorLighting
Lane Departure / LDWS WarningADAS
Forward Collision Warning (FCW/AEB)ADAS
Blind Spot Monitor FaultADAS
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
Door Open WarningBody
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
REPORTED COMPLAINTS & PROBLEMS (NHTSA)
477 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Isuzu Trooper across model years 1984–2002. These are real, verified reports submitted by vehicle owners.
49 crash reports 15 fires 45 injuries
Complaints by model year (most reported first)
Model year 199960
Model year 199554
Model year 199651
Model year 200049
Model year 199446
Model year 199842
Model year 199333
Model year 200129
Most reported components (all years)
Engine And Engine Cooling152
Power Train56
Vehicle Speed Control37
Suspension37
Tires33
Electrical System31
Sample reports
MY HUSBAND CAME HOME FROM WORK , TURNED THE TRUCK OFF CAME IN THE HOUSE. GOT IN THE SHOWER 30 MINUTES LATER WHEN HE GOT OUT OF THE SHOWER HE HEARD A POP AND FLAMES WERE COMING OUT OF THE PASSENGER SIDE TIRE FROM UNDER THE HOOD. THE WHOLE… (MY 1994)
REFER TO TSB# SB9601L005 / NHTSA# 049410 THIS PAST SUMMER I CHANGED THE SPARK PLUGS AGAIN. WHEN I PULLED THE OLD PLUGS, 4 HAD OIL SITTING ON THE TOP SIDE OF THE PLUGS AND THE PLUG BOOTS WERE COVERED WITH OIL. 2 WEEKS AGO, MY TROO… (MY 1993)
WAS JUST INFORMED ABOUT THE VALUE OF REPORTING THIS. IN 1997, UNDER WARRANTY-I SHOWED A LINE IN THE FRAME TO A ISUZU DEALER/MECHANIC WHO FAILED TO IDENTIFY THIS AS A CRACK IN THE FRAME. SINCE THEN, THE CRACK HAS CIRCUMVENTED MOST OF THE… (MY 1994)
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 (MY 1999)
Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 1984–2002.
Frequently Asked Questions
Does the Isuzu Trooper have any safety recalls?
Yes — 28 official NHTSA recall campaign(s) affect this model, mainly: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE, FUEL SYSTEM, GASOLINE:DELIVERY. Check the recalls section for your exact year/VIN.
What does fault code P0300 mean on the Isuzu Trooper?
Random/Multiple Cylinder Misfire Detected This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0128 mean on the Isuzu Trooper?
Coolant temperature below thermostat regulating temperature — thermostat stuck open or faulty This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
What does fault code P0011 mean on the Isuzu Trooper?
A Camshaft Position Timing Over-Advanced or System Performance (Bank 1) This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.
Are transmission problems common on the Isuzu Trooper?
Yes — 62 of 405 real owner reports filed with NHTSA mention the transmission. One owner reported: “DURING COLD WEATHER, FRONT HUBS WERE LOCKING UP ON THEIR OWN WHEN VEHICLE WAS IN 2ND GEAR. *AK…” See the owner-reported complaints section below for more.
Are electrical problems common on the Isuzu Trooper?
Yes — 69 of 405 real owner reports filed with NHTSA mention the electrical. One owner reported: “HEADLIGHT COVER SEALS FAIL, ALLOWING WATER TO COLLECT INSIDE OF HEADLIGHT, RESULTING IN LIGHTS BEING REFRACTED/POOR VISIBILITY. *SKD…” See the owner-reported complaints section below for more.
Are engine problems common on the Isuzu Trooper?
Yes — 136 of 405 real owner reports filed with NHTSA mention the engine. One owner reported: “THE ENGINE(CYLINDER HEAD) BROKE, REFUSED TO DO THE CHECK UP ON THE CAR BEFORE THE GUARANTEE EXPIRED. PLEASE HELP ME THIS DEALER IS DOING INJUSTICE TO PEOPLE LIKE ME. THANKS. *AK…” See the owner-reported complaints section below for more.
Which OBD2 fault codes are commonly documented for the Isuzu Trooper (1984–2002)?
Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.
How often should the Isuzu Trooper (1984–2002) be serviced?
Routine maintenance for the Isuzu Trooper (1984–2002) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.
Considering buying a Isuzu Trooper (1984–2002)? Use this guide to check expected maintenance costs, the most reported fault codes and parts availability on the market. Real data, zero commercial estimates.