Engine Mechanical:
Engine assembly, cylinder head, block, crankshaft, pistons, connecting rods, camshafts, timing systems, lubrication, cooling systems, intake and exhaust manifolds.
Engine Performance:
Fuel system, fuel injection, ignition system, emissions control systems, turbocharging (if applicable).
Transmission Manual:
Clutch, manual transmission service, gear sets, synchronizers, shift mechanisms, transfer case (if applicable).
Transmission Automatic:
Automatic transmission service, hydraulic controls, torque converter, valve body, planetary gears, electronic controls.
Drivetrain:
Driveshaft, U-joints, constant velocity (CV) joints, axles, differentials, rear-wheel drive (RWD), four-wheel drive (4WD) system.
Suspension Steering:
Front suspension (independent), rear suspension (leaf spring), shock absorbers, ball joints, tie rod ends, steering gear, power steering system, wheel alignment.
Brakes:
Front disc brakes, rear drum brakes, hydraulic system, master cylinder, brake lines, calipers, wheel cylinders, parking brake system, Anti-lock Braking System (ABS).
Body Exterior:
Body panels, doors, hood, tailgate, bumpers, glass, mirrors, seals, exterior trim, corrosion protection.
Body Interior:
Seating systems, dashboard, instrument panel, trim panels, headliner, interior lighting, safety belts, airbags.
Electrical Lighting:
Headlights, taillights, interior lights, exterior lighting, wiring harnesses, bulb specifications.
Electrical Instruments:
Instrument cluster, gauges, warning lights, sensors, switches, relays.
Electrical Power:
Battery, alternator, starter motor, charging system, fuses, circuit breakers.
HVAC:
Heating system, ventilation, air conditioning (A/C) system components, refrigerant, compressor, evaporator, condenser, blower motor.
Chassis Electrical:
Trailer lighting, horn, wipers, power windows, power door locks, remote keyless entry.
Body Control Module:
Diagnosis and repair of Body Control Module (BCM) related functions.
Safety Restraint System:
Airbag system diagnosis, SRS component replacement, seat belt service.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tire rotation, tune-ups.
Diagnostics:
Troubleshooting charts, diagnostic trouble codes (DTCs), symptom-based diagnostics, wiring diagrams.
Repair Rebuild:
Step-by-step repair procedures for all major components, component removal and installation, complete engine and transmission rebuilds.
Specifications:
Torque specifications, clearances, fluid capacities, pressure specifications, diagnostic parameters.
Wiring Diagrams:
Detailed electrical schematics for all major systems, including engine control, lighting, HVAC, chassis, and body electrical.
Diagnostic Trouble Codes:
Comprehensive list of OBD-II DTCs, their meanings, and diagnostic procedures.
Body And Frame:
Procedures for frame inspection, body repair, panel replacement, and rust mitigation.
Depth:
Factory-level detail suitable for professional technicians and advanced DIY enthusiasts.
Diagnostic Tools:
Information supports the use of professional diagnostic scan tools and multimeters.
Oil Change Interval:
Every 3,000-7,500 miles or 6 months, depending on driving conditions and oil type (refer to specific engine manual data).
Transmission Fluid Change:
Every 30,000-100,000 miles for automatic transmission fluid (ATF) depending on service (severe vs. normal).
Engine Oil Specification:
SAE 5W-30 (API Certified, GM dexos1 Gen 2 recommended for modern replacements, but original spec likely API SJ/SL).
Automatic Transmission Fluid:
Dexron III or equivalent
Coolant:
GM specified orange ethylene glycol coolant or equivalent.
Common Problems:
Intake manifold gasket leaks (V6), catalytic converter issues, fuel pump failures, minor electrical gremlins, rear main seal leaks on some V6 engines.
