Engine Mechanical:
Engine assembly, cylinder head, valve train, pistons, crankshaft, connecting rods, engine block, timing system, lubrication, cooling system.
Engine Control System:
Fuel injection, ignition system, engine control module (ECM), sensors (MAP, TPS, O2, Crankshaft Position, Camshaft Position), actuators, emissions controls.
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator, evaporative emission control (EVAP).
Intake Exhaust Cooling:
Intake manifold, throttle body, exhaust manifold, catalytic converter, muffler, radiator, cooling fan, water pump, thermostat.
Lubrication:
Oil pan, oil pump, oil filter, oil galleries, lubrication specifications.
Ignition Starting Charging:
Spark plugs, ignition coils, battery, starter motor, alternator, voltage regulator, wiring.
Automatic Transmission:
Transmission assembly, torque converter, valve body, clutch packs, gear sets, hydraulic system, transmission control module (TCM), fluid specifications, service procedures.
Manual Transmission:
Transmission assembly, clutch assembly, gear shift mechanism, fluid specifications, service procedures (if applicable to specific trims/engines).
Drivetrain:
Transfer case (if applicable), propeller shaft, drive shafts, constant velocity (CV) joints, differential, axle shafts, wheel bearings.
Suspension:
Front suspension (struts, control arms, ball joints, sway bar), rear suspension (shocks, springs, control arms, trailing arms, sway bar), alignment specifications.
Steering:
Steering column, steering gear/rack and pinion, power steering pump, power steering fluid, steering linkage.
Brakes:
Front brakes (discs, calipers, pads), rear brakes (drums or discs, calipers, pads/shoes), parking brake system, hydraulic lines, brake fluid, ABS system.
Wheels Tires:
Wheel specifications, tire pressure recommendations, tire rotation, wheel balancing.
Body Exterior:
Doors, hood, trunk lid, fenders, bumpers, body panels, glass, mirrors, exterior trim, latches, hinges.
Body Interior:
Seats, dashboard, instrument panel, door panels, headliner, carpeting, interior trim, seat belts, airbags (Supplemental Restraint System - SRS).
Electrical Power Distribution:
Battery, alternator, fuses, fusible links, relays, wiring harnesses, grounds.
Lighting:
Headlights, taillights, interior lights, fog lights, bulb types and replacement.
Instrumentation Gauges:
Instrument cluster, speed sensor, tachometer, fuel gauge, temperature gauge, warning lights, diagnostics.
Audio Visual:
Radio, speakers, antenna, wiring, installation and removal of components.
Climate Control:
Air conditioning system (compressor, condenser, evaporator, refrigerant), heater, blower motor, HVAC controls, cabin air filter.
Safety Restraint System:
Airbag modules, SRS control module, seat belt pre-tensioners, diagnostic procedures for SRS.
Cruise Control:
Cruise control module, actuators, switches, wiring, diagnostic procedures.
Wiper Washer:
Wiper motor, wiper arms, wiper blades, washer pump, washer fluid reservoir, nozzles, switches, wiring.
Door Locks Security:
Power door locks, central locking system, keyless entry, remote key fob, door lock actuators, wiring, alarm system, engine immobilizer.
Multiplex Can Communication:
Vehicle communication networks (e.g., CAN bus), module communication, diagnostic trouble codes (DTCs) related to network issues.
Maintenance Procedures:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement, battery testing.
Diagnostic Procedures:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble code (DTC) interpretation and clearing, wiring diagram analysis.
Repair Procedures:
Component removal and installation, rebuild procedures (e.g., engine, transmission), adjustments, calibration.
Electrical Troubleshooting:
Wiring schematic interpretation, continuity testing, voltage testing, component testing, circuit diagnosis.
Mechanical Adjustments:
Brake adjustment, clutch adjustment, parking brake adjustment, door/hood/trunk alignment.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical system troubleshooting.
Oil Change Interval:
Typically 7,500 miles or 6 months, whichever comes first (refer to manual for specific engine and oil type).
Transmission Fluid Change:
Every 50,000-100,000 miles, depending on driving conditions (refer to manual).
Coolant Change:
Every 30,000-50,000 miles or 2-4 years (refer to manual for coolant type).
Spark Plug Replacement L36:
Approx. 100,000 miles for platinum or iridium plugs.
Engine Oil Type:
5W-30 Synthetic or Conventional (refer to manual for specific viscosity and API rating).
Transmission Fluid Type:
Dexron-III/VI Automatic Transmission Fluid (ATF) (refer to manual for specific type).
Coolant Type:
GM specified orange silicate-free coolant or equivalent.
Power Steering Fluid Type:
GM Power Steering Fluid or Dexron-III/VI ATF.
Common Issues V6:
Intake manifold gasket leaks, power steering pump failures, EGR valve issues, occasional transmission solenoid issues.
Common Issues I4:
Ecotec engine oil consumption issues in some cases, timing chain stretch (less common but possible).
Electrical Issues:
Window regulator failures, climate control module issues, sometimes PCM/ECM related electrical gremlins.
Suspension Wear:
Strut mounts, ball joints, and tie rod ends can wear over time due to vehicle weight and typical usage.
