Engine Mechanical:
Complete overhaul, timing belt/chain, valve adjustments, cylinder head, block, pistons, crankshaft, oil pump, cooling system, lubrication system
Engine Electrical:
Ignition system, starting system, charging system, fuel injection system (EFI), engine control unit (ECU) diagnostics, wiring diagrams
Transmission Manual:
Clutch, gearbox overhaul, gear ratios, shifting mechanisms, PTO (if applicable)
Transmission Automatic:
Torque converter, planetary gear sets, valve body, hydraulic control, shift solenoids, overhaul procedures, fluid type and capacity
Drivetrain:
Four-wheel drive system (Super Select 4WD if applicable), transfer case, front and rear differentials, drive shafts, CV joints, hubs
Suspension:
Front independent suspension (torsion bar or coil spring), rear leaf springs or coil springs, shock absorbers, control arms, bushings, steering knuckles
Steering:
Power steering system, steering gearbox/rack, tie rods, steering column, wheel alignment specifications
Brakes:
Front disc brakes, rear drum brakes (or disc brakes on some models), brake fluid type and capacity, master cylinder, calipers, wheel cylinders, parking brake system, ABS (if equipped)
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel filter, carburetor (early models) or multi-point fuel injection (later models), fuel pressure specifications
Exhaust System:
Exhaust manifold, catalytic converter, muffler, pipes, hangers, emissions control systems
Cooling System:
Radiator, thermostat, water pump, coolant type and capacity, heater core, hoses, fan clutch/electric fan
Electrical Body:
Lighting system (headlights, taillights, interior), power windows, power locks, mirrors, wipers, horn, fuse box diagrams, relay locations
HVAC:
Air conditioning system (compressor, condenser, evaporator, refrigerant type), heater, blower motor, climate control system
Body And Chassis:
Frame, body panels, doors, hood, tailgate, bumpers, interior trim, glass replacement, corrosion prevention
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, drive belt inspection/replacement, tire rotation
Diagnostic Troubleshooting:
Step-by-step troubleshooting guides for common issues, diagnostic trouble codes (DTCs), symptom-based diagnostics
Repair And Rebuild:
Detailed instructions for component removal, installation, and complete overhaul for most major systems
Component Replacement:
Specific procedures for replacing wear items and major components like alternators, starters, radiators, pumps, etc.
Electrical Repair:
Wiring harness repair, component testing, circuit diagnostics using wiring diagrams
Wheel Alignment:
Specifications for camber, caster, toe-in, and steering axis inclination
Specifications And Tolerances:
Torque specifications for all fasteners, critical clearances, wear limits for engine and drivetrain components
Depth:
Comprehensive: Covers everything from basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics and electrical system troubleshooting.
Engine Oil Change:
Every 3,000-5,000 miles or 3-6 months (depending on oil type and driving conditions).
Engine Oil Filter:
Replace with every oil change.
Air Filter:
Inspect every 15,000 miles, replace as needed or every 30,000 miles.
Spark Plugs:
Replace every 30,000 miles (typically for standard plugs).
Timing Belt 4G54:
Replace every 60,000 miles or 4-5 years (critical maintenance item).
Transmission Fluid Auto:
Change every 30,000-50,000 miles, inspect more frequently.
Transmission Fluid Manual:
Change every 50,000-60,000 miles.
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles.
Engine Oil:
API SG or higher, SAE 10W-30 or 10W-40 (depending on climate). Consult manual for specific viscosity.
Automatic Transmission Fluid:
Dexron II or equivalent.
Manual Transmission Fluid:
GL-4 or GL-5 gear oil, SAE 75W-90 or 80W-90.
Coolant:
Ethylene glycol based antifreeze mixed with distilled water (50/50 ratio).
Power Steering Fluid:
DEXRON II or equivalent power steering fluid.
Rust And Corrosion:
Common in areas with road salt due to body-on-frame construction and age. Frame rust can be a significant concern.
Engine Overheating:
Can occur due to aging cooling system components (radiator, hoses, water pump, thermostat).
Timing Belt Failure:
Critical to adhere to replacement intervals for the 4G54 engine to avoid catastrophic damage.
Drivetrain Wear:
U-joints, CV joints, and differential bearings can wear out with age and mileage, especially with off-road use.
Interior Electronics:
Power window motors, lock actuators, and gauge clusters can fail over time.
Fuel System Issues:
Carburetor issues on earlier models, fuel pump failures, and clogged injectors on EFI models.
Heritage:
Mitsubishi Motors Corporation, a Japanese automaker with a long history of producing durable and capable vehicles, including rugged 4x4s.
Evolution Points:
Initial models featured smaller, 4-cylinder engines and part-time 4WD. Later models saw the introduction of the more powerful V6 engine, automatic transmissions, improved interior features, and advanced 4WD systems (like Super Select).
Manufacturing Locations:
Japan (primarily Mizushima Plant)
Production Period Covered By Manual:
1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991
