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Maintenance Information Isuzu Trooper I

Procedures 3 illustrations ~1123 words

VIN LOCATION

The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the code characters.

VIN CODE ID EXPLANATION

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN example below.

VIN Code ID Explanation. Scheme 2

Scheme 2: VIN Code ID Explanation
Scheme 2: VIN Code ID Explanation

SEVERE & NORMAL SERVICE DEFINITIONS

Service is recommended at mileage intervals based on vehicle operation. Service schedules are based on the following primary operating conditions

Normal Service

  1. Driven More Than 10 Miles Daily
  2. No Operating Conditions From Severe Service Schedule

Severe Service (Unique Driving Conditions)

  1. Short Trips (About 10 Miles) In Freezing Temperatures
  2. Towing Or Heavily Loaded
  3. Severe Dust Conditions
  4. Hot Weather, Stop-And-Go Driving
  5. Extensive Idling Conditions (Taxi Or Delivery Type Service)

CAMSHAFT TIMING BELT

CAUTIONFailure to replace a faulty camshaft timing belt may result in serious engine damage.

The condition of camshaft drive belts should always be checked on vehicles which have more than 50,000 miles. Although some manufacturers do not recommend belt replacement at a specified mileage, others require it at 60,000-100,000 miles. A camshaft drive belt failure may cause extensive damage to internal engine components on most engines, although some designs do not allow piston-to-valve contact. These designs are often called "Free Wheeling".

Many manufacturers changed their maintenance and warranty schedules in the mid-1980's to reflect timing belt inspection and/or replacement at 50,000-60,000 miles. Most service interval schedules in this manual reflect these changes.

Belts or components should be inspected and replaced if any of the following conditions exist

  1. Cracks Or Tears In Belt Surface
  2. Missing, Damaged, Cracked Or Rounded Teeth
  3. Oil Contamination
  4. Damaged Or Faulty Tensioners
  5. Incorrect Tension Adjustment

Replace camshaft timing belt at 60,000 mile intervals.

SERVICE LABOR TIMES

Note. For 1990 and newer vehicles, labor times are provided, where available, within appropriate SERVICE INTERVAL table in SCHEDULED SERVICES article.

WHEEL & TIRE SPECIFICATIONS

Wheel and tire information can be found on the Gross Vehicle Weight Rating (GVWR) decal located on the driver's door.

WHEEL TIGHTENING

Tighten wheel lug nuts to 58-87 ft. lbs. (80-120 N.m) for steel wheels and to 80-94 ft. lbs. (110-130 N.m) for aluminum wheels.

DIESEL ENGINES

CAUTIONUsing SAE 10W-40 oil, or any other viscosity other than those viscosities recommended by Isuzu may reduce engine life and affect warranty.

WARRANTY INFORMATION

CAUTIONWhen battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION Section.

If battery is replaced, new battery should be of the same group number as shown on the original battery's label.

FUSE PANEL LOCATION

The fuse box is located below the instrument panel on the driver's side. The fuse/relay box is located under the hood on the right side of engine compartment.

Scheme 3

Scheme 3: FUSE PANEL IDENTIFICATION (1984-85)
Scheme 3: FUSE PANEL IDENTIFICATION (1984-85)

Fuse & Circuit Breaker Identification

  1. 1 - 15 Amp - Taillights & Clearance Lights, License & Side Marker Lights, Instrument Cluster
  2. 2 - 25 Amp - Air Conditioner, Heater
  3. 3 - 15 Amp - Stoplight, Luggage Compartment Light, Horn, Hazard Warning Light
  4. 4 - 15 Amp - Back-Up Lights, Turn Signal Lights, Indicator Lights, Gauges
  5. 5 - 15 Amp - Ignition Coil, Auto-Choke, Regulator, Engine Speed Sensor
  6. 6 - 15 Amp - Wiper & Washer, Radio

Scheme 4

Scheme 4: FUSE PANEL IDENTIFICATION (1986)
Scheme 4: FUSE PANEL IDENTIFICATION (1986)

Relay Identification

  1. A - Blank
  2. B - Blank
  3. C - Rear Defogger
  4. D - Main Engine Relay
  5. E - Starter
  1. 1 - 10 Amp - Taillights & Clearance Lights, License & Side Marker Lights, Instrument Cluster, Clock
  2. 2 - 10 Amp - Horn, Luggage Compartment Light, Key Buzzer
  3. 3 - 15 Amp - Foglights (If Equipped)
  4. 4 - 10 Amp - Hazard Lights
  5. 5 - 10 Amp - Stoplights
  6. 6 - 10 Amp - Rear Heater, Rear Defogger Relay Coil, A/C Coil, EDE Heater Relay Coil (Gasoline Engine)
  7. 7 - 10 Amp - A/C Compressor, Fast Idle, Compressor Relay Coil (Diesel Engine), Compressor Cut Relay Coil (Gasoline Engine)
  8. 8 - 5 Amp - Clock, ECM Controller
  9. 9 - 20 Amp - Rear Defogger
  10. 10 - 5 Amp - Charging System, A/C Generator
  11. 11 - 15 Amp - Auto-Choke (Gasoline Engine), Vent, Fuel Filter Heater (Diesel Engine)
  12. 12 - 10 Amp - Meter, Warning Indicators, Clock, ECM Controller Relay Coil, VSV, Duty Solenoid, Engine Speed Controller, Glow Light (Diesel Engine)
  13. 13 - 10 Amp - Seat Heater (If Equipped)
  14. 14 - 10 Amp - Turn Indicator Light
  15. 15 - 15 Amp - Ignition Coil, Slow Cut, Fuel Cut, ACG, QOS Controller, Glow Relay Coil
  16. 16 - 5 Amp - Engine Relay Coil
  17. 17 - 15 Amp - Front Wiper & Washer
  18. 18 - 15 Amp - Cigarette Lighter
  19. 19 - 15 Amp - Rear Wiper & Washer
  20. 20 - 10 Amp - Radio
  21. 21 - 10 Amp - Right Headlight Low Beam
  22. 22 - 10 Amp - Right Headlight High Beam
  23. 23 - 10 Amp - Left Headlight Low Beam
  24. 24 - 10 Amp - Left Headlight High Beam
  1. A - ECM (Gasoline Engine)
  2. B - Power Windows
  3. C - Main Engine Relay (2.6L) Warning Light (2.8L)
  4. D - Starter (2.6L) Fuel Pump Back-Up (2.8L)
  5. E - A/C Compressor Cutoff
  1. 1 - 10 Amp - Taillights & Clearance Lights, License & Side Marker Lights, Instrument Cluster, Heater Controller (1988-90), Clock
  2. 2 - 10 Amp - Luggage Compartment Light, Horn, Buzzer
  3. 3 - Blank
  4. 4 - 10 Amp - Hazard Light
  5. 5 - 10 Amp - Stoplight, Auto Cruise Controller (1988-90), ECT Cont (A/C) (1988-90)
  6. 6 - 10 Amp - Clock, Radio, ECM Control, ECT Cont (A/T) (1988-90), Buzzer Control (1989)
  7. 7 - 20 Amp - Door Lock Controller, Door Lock
  8. 8 - 10 Amp - Air Compressor, Fast Idle, VSV, Air Compressor Relay & Solenoid, Compressor Cut Relay Coil, Heat Relay Coil
  9. 9 - 10 Amp - QOS Controller (1987), Glow Relay Coil (Diesel), Engine Relay Coil (1990-91 2.6L Engine)
  10. 10 - 10 Amp - Charge Indicator Light
  11. 11 - 10 Amp - Rear Heater, Rear Defogger Relay Coil, A/C Relay Coil, EFE Heater Relay Coil (1987)
  12. 12 - 10 Amp - Auto Choke (1987), Vent Switching Valve (1987), Fuel Filter Heater (1987 Diesel), Fuel Pump Relay Coil (2.6L Engine)
  13. 13 - 10 Amp - Dash Gauges, Warning Indicators, ECM Controller Relay Coil (1987), Vent Switching Valve (1987), Duty Solenoid (1987), Engine Speed Controller (1987), Auto Cruise Controller (1988-91), Auto Cruise Relay Coil (1988-91), ECT Cont (A/T) (1988-91), Buzzer Controller (1991)
  14. 14 - 15 Amp - Ignition Coil, Main Relay Coil, QOS Controller (1987), Glow Relay Coil (Diesel)
  15. 15 - 10 Amp - Turn Signal Indicator, Back-Up Lights, Turn Signals, ECT Controller (A/T) (1988-91)
  16. 16 - 10 Amp - Headlight Washer Controller, Power Window
  17. 17 - Blank
  18. 18 - 15 Amp - Rear Wiper & Washer
  19. 19 - 10 Amp - Radio & Clock
  20. 20 - 10 Amp - Starter Relay Coil (1990 2.8L Engine), Blank (1991)
  21. 21 - 15 Amp - Front Wiper & Washer
  22. 22 - 15 Amp - Cigarette Lighter
  23. 23 - 20 Amp - Fuel Pump (2.6L Engine), ECM Controller (1988-91)
  24. 24 - 20 Amp - Fuel Pump (1988-91)

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