1987 Isuzu I-Mark Base, 2D Hatchback, StandardFACTORY OEM SERVICE PROCEDURE

Repair and Diagnosis

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Fwd Electrical Charging Systems Alternator - HITACHI Alternator - NIPPONDENSO Component Locations Diagnostic Connector (DLC) Locations Electrical Component Locator Fuses & Circuit Breakers Fuses & Circuit Breakers - 1.5L Non-Turbo Fuses & Circuit Breakers - 1.5L Turbo Gauges Instrument Panel - Standard Starter Starter - Direct Drive Starter - HITACHI Wiring Diagrams System Wiring Diagrams - Fwd Using lemon2025'S System Wiring Diagrams Wiring Diagrams Engine Mechanical Auxiliary Emission Control Systems Emission Control System Visual Inspection Procedures - General Information Cooling Fan Engine Cooling Systems Cooling System (Mechanical) Cooling System Specifications Engine Cooling Systems Mechanical 1.5L 4-CYL - VIN [7] & 1.5L 4-CYL Turbo - VIN [9] Starter Starter - Direct Drive Starter - HITACHI Timing Belt Replacement - 1.5L Engine Performance Adjustment Tune-Up - 4-CYL Application Engine/VIN Id Emissions EGR Function Testing - ISUZU Emission Applications Emission Applications - Gas Emission Control Abbreviations State Emission Standards - Diesel State Emission Standards - Gas Ignition System - NIPPONDENSO Electronic System Air Cleaner - Thermostatic Air Injection System Carburetor - NIPPON (STROMBERG) 2-Bbl Early Fuel Evaporation System EGR System Feedback Carburetor System Fuel Evaporation System High Altitude Compensation System PCV System Turbocharger Testing & Diagnosis Air Cleaner - Thermostatic Air Injection System Carburetor - NIPPON (STROMBERG) 2-Bbl Early Fuel Evaporation System EGR System Feedback Carburetor System Fuel Evaporation System High Altitude Compensation System PCV System Turbocharger Tune-Up Ignition System - NIPPONDENSO Electronic Vacuum Diagrams General Information Abbreviations Commonly Used Abbreviations - General Information Emission Control Abbreviations Basic Trouble Shooting Basic Trouble Shooting - General Information Commonly Used Abbreviations - General Information Emission Control Abbreviations Engine Performance - Trouble Shooting - General Information Brakes Anti-Lock Brake Safety Precautions - General Information Map - Brake Systems Map - Routine Inspection Reference Guide Check Lists Symptom Check List Worksheet - General Information Computer Relearn Procedures Driveline/Axles Drive Axle Noise Diagnosis - General Information Gear Tooth Contact Patterns - General Information Map - Drive Train & Transmission Trouble Shooting - Clutches - General Information Electrical Map - Electrical Systems Using lemon2025'S System Wiring Diagrams Engine Engine Overhaul Procedures - General Information General Cooling System Service - General Information Engine Performance Electrostatic Discharge Warning - General Information Engine Performance Diagnostic Routine Outline - General Information Engine Performance Safety Precautions Map - Engine Performance & Maintenance Parasitic Load Explanation & Test Procedures - General Information State Emission Standards - Diesel State Emission Standards - Gas Waveforms - Injector Pattern Tutorial - General Information Map - Exhaust Systems Heating, Ventilation & A/C (HVAC) Map - Heating, Ventilation, & Air Conditioning Identification CANADIAN Model Cross-Reference Metric Conversions Engine Displacement Conversion Table - ECAT Metric Conversions Maintenance Reminder Light (Reset Procedures) Steering Map - Steering, Suspension, Wheel Alignment, Wheels & Tires Wheel Alignment Theory & Operation - General Information Traction Control Disable Procedures Trouble Shooting - Manual Transmission - General Information Heating, Ventilation & A/C (HVAC) General Servicing A/C System General Diagnostic Procedures A/C System Precautions HVAC Control Systems A/C-Heater System - Manual Heater System Maintenance Procedures Maintenance Information - Fwd Maintenance Reminder Light (Reset Procedures) Service Indicator & Warning Lights - Fwd Steering Manual Steering Steering System - Power Power Steering Steering System - Power Steering Column Steering Gear - Manual Suspension Front Suspension Suspension - Front Rear Suspension Suspension - Rear Wheel Alignment Jacking & Hoisting Pre-Alignment Checks Riding Height Adjustment Wheel Alignment Specifications & Procedures Transmission Clutches Manual Trans Removal & Installation - M/T Servicing - M/T

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.