Engine Mechanical:
Engine assembly, cylinder head, pistons, crankshaft, lubrication system, cooling system, timing system (belts/chains), fuel injection system (mechanical aspects).
Engine Electrical:
Ignition system, starter motor, alternator, battery, ECM (Engine Control Module) diagnosis, sensors (MAF, O2, crank, cam, TPS, MAP), wiring diagrams, emissions control.
Transmission Manual:
MT (if applicable, though Axiom was primarily automatic), clutch system, gear shift mechanisms.
Transmission Automatic:
4L30-E Automatic Transmission, torque converter, valve body, internal components, transmission control module (TCM), fluid and filter service, diagnosis.
Drivetrain:
Front axle, rear axle, differential, driveshafts, CV joints, transfer case (if applicable), wheel hubs.
Brakes:
Front disc brakes (calipers, rotors, pads), rear disc brakes (calipers, rotors, pads), parking brake system, ABS (Anti-lock Braking System) components and diagnosis, brake lines and hoses, master cylinder, brake fluid specifications.
Suspension:
Front suspension (struts, control arms, ball joints, bushings), rear suspension (multi-link, shocks, springs, bushings), wheel alignment specifications, stabilizer bars.
Steering:
Power steering system (pump, rack and pinion, hoses), steering column, tie rod ends, steering fluid specifications.
Electrical System:
Battery, charging system, starting system, lighting (headlights, taillights, interior), fuses, relays, wiring diagrams for all circuits, power windows, power locks, mirrors, wiper system, horn.
HVAC System:
Air conditioning system (compressor, condenser, evaporator, refrigerant), heating system (heater core, blower motor), climate control panel, ducting.
Body Exterior:
Body panels, doors, hood, tailgate, bumpers, glass (windshield, windows, rear glass), exterior trim, paint codes, body repair procedures.
Body Interior:
Seats, dashboard, door panels, headliner, carpeting, airbags (SRS - Supplemental Restraint System), seat belts, interior trim components.
Infotainment:
Audio system, radio, speakers, antenna, navigation system (if equipped), display units.
Preventive Maintenance:
Scheduled maintenance tasks, oil changes, filter replacements (oil, air, fuel, cabin), fluid checks and replacements, tire rotation and pressure checks, spark plug replacement, belt inspection/replacement.
Troubleshooting Diagnostics:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, testing procedures for electrical components, fuel system diagnostics, engine performance issues.
Repair Overhaul:
Complete engine disassembly and reassembly, transmission overhaul, suspension component replacement, brake system repair, steering component replacement, electrical component repair/replacement, body panel repair and replacement.
Alignment Adjustments:
Wheel alignment procedures and specifications, headlight aiming.
Electrical Repairs:
Wiring harness repair, component testing and replacement (sensors, actuators, modules), fuse and relay diagnosis, battery charging and testing.
HVAC Repairs:
Refrigerant system charging, component replacement (compressor, dryer, expansion valve), blower motor replacement, heater core replacement.
Safety System Repairs:
Airbag system diagnostics and replacement (SRS), seat belt repair.
Depth:
Comprehensive: Covers everything from basic maintenance to complete engine and transmission overhauls, detailed diagnostics, and electrical system tracing.
Diagnostics Tools:
Specifies diagnostic tool requirements (e.g., OBD-II scanner) and diagnostic procedures.
Torque Specifications:
Provides detailed torque specifications for all critical fasteners.
Clearances:
Includes specifications for engine clearances (e.g., piston ring gap, bearing clearances) and suspension component clearances.
Wiring Diagrams:
Detailed, color-coded wiring diagrams for all vehicle systems.
Oil Change Interval:
Every 5,000 miles or 6 months, whichever comes first.
Air Filter Replacement:
Every 15,000 miles or 12 months.
Cabin Air Filter Replacement:
Every 15,000 miles or 12 months.
Spark Plug Replacement:
Every 60,000 miles (if using platinum-tipped plugs).
Transmission Fluid Service:
Every 30,000 miles or 24 months (inspect more frequently).
Coolant Flush:
Every 30,000 miles or 24 months.
Power Steering Fluid:
Dexron-III ATF or equivalent.
Transfer Case Fluid:
API GL-4, SAE 75W-90 gear oil (check manual for specific Isuzu spec).
Rear Differential Fluid:
API GL-5, SAE 75W-90 gear oil.
Engine Oil Leaks:
Potential for oil leaks from valve cover gaskets and rear main seal over time.
Transmission Slipping:
Some reports of premature transmission wear or slipping, often addressed by fluid changes or valve body issues.
Suspension Bushings:
Wear in suspension bushings can lead to rattling or looseness.
HVAC Blower Motor:
Blower motor resistor failure or motor failure can lead to loss of fan speeds.
Exhaust Manifold Cracks:
Some instances of exhaust manifold cracking, especially on earlier models.