Engine:
4G63 MIVEC Turbocharged inline-4: components, disassembly, assembly, diagnosis, troubleshooting, performance tuning basics.
Fuel System:
Fuel injection, fuel pump, injectors, fuel lines, pressure regulator, evaporative emissions control.
Ignition System:
Ignition coils, spark plugs, engine control module (ECM) control.
Cooling System:
Radiator, water pump, thermostat, hoses, fan, coolant specifications.
Exhaust System:
Exhaust manifolds, catalytic converter, muffler, oxygen sensors.
Transmission:
6-speed manual transmission (Getrag MS-6S-50BG): clutch, gearbox, differentials, fluid specifications, removal, installation, internal components.
Drivetrain:
All-Wheel Drive (AWD) system: electronically controlled active center differential (ACD), Super Active Yaw Control (S-AYC), propeller shaft, driveshafts, wheel hubs.
Brakes:
Front Brembo 4-piston calipers, rear Brembo 2-piston calipers, ABS system, brake fluid specifications, bleeding procedures, component replacement.
Steering:
Power-assisted rack and pinion, steering column, steering wheel, alignment specifications.
Suspension:
Front MacPherson struts, rear multi-link independent suspension, springs, dampers, bushings, wheel bearing replacement, alignment.
Electrical System:
Wiring diagrams, battery, alternator, starter motor, lighting systems, fuses, relays, power distribution.
Engine Control System:
ECU, sensors (MAP, MAF, O2, knock, crank, cam), actuators (throttle body, wastegate solenoid), diagnostic trouble codes (DTCs).
Body And Chassis:
Body panels, doors, fenders, hood, trunk, interior trim, structural components, corrosion protection.
Climate Control:
HVAC system, A/C compressor, refrigerant, heater core, blower motor, controls.
Safety Systems:
Airbags, seat belts, SRS system diagnosis, ABS, ACD, S-AYC.
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection.
Engine Repair:
Head gasket replacement, turbocharger overhaul, piston and ring installation, valve stem seal replacement, timing belt/chain service.
Transmission Repair:
Clutch replacement, gearbox rebuild, differential service, synchronizer replacement.
Drivetrain Service:
ACD and S-AYC system service and calibration, driveshaft and CV joint inspection/replacement.
Brake System Repair:
Brake pad and rotor replacement, caliper overhaul, brake line replacement, ABS module diagnosis.
Suspension And Steering Repair:
Shock absorber and strut replacement, bushing replacement, power steering pump and rack service, wheel alignment procedures.
Electrical Diagnostics:
Troubleshooting electrical faults, wiring harness repair, component testing, use of diagnostic tools.
Bodywork And Interior:
Panel alignment, door hinge adjustment, interior trim removal/installation, glass replacement.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.
Specifications:
Torque specifications for all fasteners, clearance measurements, fluid capacities, and types.
Depth:
Full factory-level repair procedures, including component teardown, assembly, and specialized tool usage.
Diagnostic Capability:
Detailed information on diagnosing electronic control systems, sensor readings, and actuator functions.
Rebuild Procedures:
Comprehensive guides for engine and transmission rebuilds, including internal component specifications and tolerances.
Engine Oil Change:
Every 3,750 miles or 6 months, whichever comes first (severe driving conditions; normal conditions may extend slightly, but performance driving warrants frequent changes).
Oil Filter Replacement:
With every oil change.
Air Filter Replacement:
Every 15,000 miles or 12 months.
Spark Plug Replacement:
Every 30,000 - 60,000 miles, depending on plug type (refer to manual for specific recommendations).
Timing Belt Inspection/Replacement:
Refer to manual; the 4G63 uses a timing belt. Inspect at 60,000 miles, replace typically around 90,000-105,000 miles or per manual.
Transmission Fluid Change:
Every 30,000 miles or 24 months (manual transmission and ACD).
Brake Fluid Flush:
Every 24,000 miles or 24 months.
Engine Oil Type:
Refer to manual for viscosity grade and API classification. Typically 5W-30 or 10W-30 synthetic oil meeting ACEA A3/B4 or API SN/SM/SL specifications is recommended, especially for high-performance use.
Coolant Type:
Mitsubishi Super Long Life Coolant (or equivalent P-HOAT/OAT coolant, typically pink or red) - 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for precise specification, high-performance driving may benefit from DOT 4).
Engine:
Head gasket failures (especially on modified or poorly maintained engines), turbocharger wear, crank walk (rare but critical issue on some 4G63s, often related to oil pressure or abuse).
Drivetrain:
ACD/AYC pump failure, differential issues on high-mileage vehicles if not properly maintained.
Suspension:
Wear in bushings, ball joints, and wheel bearings due to aggressive driving.
Electrical:
TPS (Throttle Position Sensor) issues, intermittent electrical gremlins due to wiring complexity.