Engine:
        
        
            Detailed diagnostics, overhaul, and component replacement for all applicable engines.
        
     
    
        
            Control System:
        
        
            Engine control module (ECM) diagnostics, sensor readings, and system operation.
        
     
    
        
            Mechanical:
        
        
            Component-level repair and replacement for all mechanical systems.
        
     
    
        
            Fuel Service Specifications:
        
        
            Fuel delivery, injector testing, pressure specifications, and system diagnostics.
        
     
    
        
            Emission Control:
        
        
            Catalytic converter, EGR, O2 sensors, and emission system troubleshooting.
        
     
    
        
            Intake Exhaust Cooling:
        
        
            Intake manifold, exhaust system, radiator, coolant flow, and thermostat operation.
        
     
    
        
            Lube:
        
        
            Lubrication system, oil pressure, and oil filter specifications.
        
     
    
        
            Ignition Starting Charging:
        
        
            Spark plugs, ignition coils, battery, alternator, and starter motor diagnostics.
        
     
    
        
            Auto Transmission:
        
        
            Overhaul, fluid service, electronic diagnostics, and component replacement for automatic transmissions.
        
     
    
        
            Manual Transmission:
        
        
            Clutch service, gearbox overhaul, and component replacement for manual transmissions (if applicable).
        
     
    
        
            Transfer Propeller Shaft:
        
        
            Drive shaft inspection, U-joints, and universal joint service.
        
     
    
        
            Drive Shaft:
        
        
            Driveshaft components, balancing, and installation procedures.
        
     
    
        
            Differential:
        
        
            Rear axle differential service, fluid specifications, and bearing adjustments.
        
     
    
        
            Axle Suspension:
        
        
            Front and rear suspension components, alignment, shock absorbers, and springs.
        
     
    
        
            Tire Wheel:
        
        
            Wheel bearing service, tire pressure recommendations, and wheel alignment specifications.
        
     
    
        
            Brake Control:
        
        
            ABS system diagnostics, hydraulic control unit, and brake proportioning valve.
        
     
    
        
            Brake:
        
        
            Front and rear brake system overhaul, rotor/pad replacement, and hydraulic bleeding.
        
     
    
        
            Parking Brake:
        
        
            Parking brake cable adjustment and service.
        
     
    
        
            Steering Column:
        
        
            Steering column disassembly, ignition switch replacement, and tilt mechanism.
        
     
    
        
            Power Steering:
        
        
            Power steering pump, rack and pinion, and fluid specifications.
        
     
    
        
            Air Condition:
        
        
            Refrigerant system diagnostics, component replacement, and charging procedures.
        
     
    
        
            Suppl Restraint System:
        
        
            Airbag system diagnostics, module replacement, and SRS warning light troubleshooting.
        
     
    
        
            Seat Belt:
        
        
            Seat belt mechanism inspection and replacement.
        
     
    
        
            Engine Immobilizer:
        
        
            Immobilizer system operation and troubleshooting (if equipped).
        
     
    
        
            Cruise Control:
        
        
            Cruise control system diagnostics and component replacement.
        
     
    
        
            Wiper Washer:
        
        
            Wiper motor, linkage, and washer fluid system repair.
        
     
    
        
            Door Lock:
        
        
            Power door lock system diagnostics and repair.
        
     
    
        
            Meter Audio Visual:
        
        
            Instrument cluster, gauge operation, and basic audio system troubleshooting.
        
     
    
        
            Horn:
        
        
            Horn system diagnostics and repair.
        
     
    
        
            Windshield Glass Mirror:
        
        
            Windshield replacement, mirror adjustment, and related trim.
        
     
    
        
            Instrument Panel:
        
        
            Instrument panel removal, installation, and component access.
        
     
    
        
            Seat:
        
        
            Seat removal and installation, adjustments.
        
     
    
        
            Engine Hood Door:
        
        
            Hood latch, hinges, and door panel removal/installation.
        
     
    
        
            Exterior Interior:
        
        
            Body panel repair, trim, and interior components.
        
     
    
        
            Electrical:
        
        
            Complete electrical system coverage, including fuses, relays, lighting, and body electrical.
        
     
    
        
            Multiplex Can Communication:
        
        
            Diagnostic procedures for multiplexed electrical systems and CAN bus communication (if applicable).
        
     
    
        
            Body And Trim:
        
        
            Detailed procedures for removing and installing interior and exterior trim, body panels, and seals.
        
     
    
    
        
            Maintenance:
        
        
            Routine scheduled maintenance, fluid checks, filter replacements, and inspections.
        
     
    
        
            Diagnostics:
        
        
            System-specific diagnostic procedures, troubleshooting trees, and symptom-based fault finding.
        
     
    
        
            Repair:
        
        
            Step-by-step instructions for component removal, installation, and repair for all systems.
        
     
    
        
            Specifications:
        
        
            Torque specifications, clearances, fluid capacities, pressures, and electrical values.
        
     
    
        
            Wiring Schematics:
        
        
            Detailed electrical wiring diagrams for all vehicle systems.
        
     
    
        
            Troubleshooting:
        
        
            Extensive troubleshooting guides for all systems, including diagnostic trouble codes (DTCs).
        
     
    
    
        
            Depth:
        
        
            Factory-level detail for professional technicians and advanced DIY enthusiasts.
        
     
    
        
            Diagnostic Tools:
        
        
            Information on using diagnostic tools like ALDL (Assembly Line Diagnostic Link) scanners for engine and transmission diagnostics.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically every 3,000-5,000 miles or 6 months, depending on driving conditions and oil type.
        
     
    
        
            Transmission Fluid Change:
        
        
            Recommended every 30,000-60,000 miles for the 4L60-E automatic transmission.
        
     
    
    
        
            Engine Oil Type:
        
        
            Typically SAE 5W-30 or 10W-30 (refer to manual for exact specification and API rating).
        
     
    
        
            Transmission Fluid Type:
        
        
            Dexron III Automatic Transmission Fluid (ATF).
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol based, typically a 50/50 mix with distilled water. Specific GM recommendation for the era.
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 3 brake fluid.
        
     
    
    
        
            Common Problems:
        
        
            Potential for head gasket leaks (especially 3.8L V6 and early 5.0L V8s), transmission issues (4L60-E), dashboard crack issues due to sun exposure, and suspension wear.
        
     
    
        
            Electrical Gremlins:
        
        
            Common for older vehicles, focus on ground points, wiring harness integrity, and module connections.