Engine Mechanical:
        
        
            Engine assembly, cylinder head, pistons, crankshaft, camshaft, timing, lubrication, cooling system
        
     
    
        
            Fuel System:
        
        
            Fuel injection system (TBI, MPI), fuel pump, fuel filter, fuel tank, evaporative emission control (EVAP)
        
     
    
        
            Ignition System:
        
        
            Distributor, ignition coils, spark plugs, ignition control module (ICM)
        
     
    
        
            Emission Control:
        
        
            Catalytic converter, oxygen sensors, EGR system, PCV system
        
     
    
        
            Transmission Manual:
        
        
            Clutch, gearbox (NV3500, NV4500), driveline components
        
     
    
        
            Transmission Automatic:
        
        
            4L60E, 4L80E automatic transmission repair and diagnosis
        
     
    
        
            Drivetrain 4Wd:
        
        
            Transfer case (NP233, NP243, NP246), front axle, CV joints
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, springs, shock absorbers, control arms, ball joints, bushings
        
     
    
        
            Steering:
        
        
            Power steering system, steering gear, tie rods, steering column
        
     
    
        
            Brakes:
        
        
            Front and rear disc/drum brakes, ABS system, brake lines, master cylinder, calipers, wheel cylinders
        
     
    
        
            Electrical System:
        
        
            Battery, charging system (alternator), starting system (starter), lighting, accessories
        
     
    
        
            Instrument Panel:
        
        
            Gauges, warning lights, switches, HVAC controls
        
     
    
        
            Body Interior:
        
        
            Door mechanisms, seat adjustments, headliner, carpet, dashboard components
        
     
    
        
            Body Exterior:
        
        
            Body panels, bumpers, hood, tailgate, doors, glass, mirrors, weatherstripping
        
     
    
        
            HVAC System:
        
        
            Air conditioning, heating, ventilation, blower motor, refrigerant system
        
     
    
    
        
            Preventative Maintenance:
        
        
            Oil changes, filter replacements, fluid checks and changes, belt inspections, spark plug replacement
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures, symptom-based troubleshooting, wiring diagrams for diagnosis
        
     
    
        
            Repair Procedures:
        
        
            Component removal, disassembly, inspection, repair, reassembly, and installation
        
     
    
        
            Overhaul Rebuild:
        
        
            Complete engine and transmission overhaul instructions
        
     
    
        
            Calibration Adjustment:
        
        
            Wheel alignment specifications, brake adjustments, steering system checks
        
     
    
        
            Electrical Diagnostics:
        
        
            Fuse and relay identification, wiring diagrams, diagnostic connector (OBD-II) interpretation
        
     
    
        
            Suspension Steering Repair:
        
        
            Replacement of shocks, struts, ball joints, tie rods, power steering pump and gearbox
        
     
    
        
            Brake System Repair:
        
        
            Pad and shoe replacement, rotor resurfacing/replacement, caliper and wheel cylinder service, ABS bleeding
        
     
    
        
            Body And Trim Repair:
        
        
            Panel replacement, door hinge adjustment, interior trim removal and installation
        
     
    
    
        
            Depth:
        
        
            Comprehensive, from basic maintenance to complete engine and transmission rebuilds
        
     
    
        
            Detail Level:
        
        
            Step-by-step instructions with accompanying diagrams and illustrations
        
     
    
        
            Diagnostic Focus:
        
        
            Emphasis on systematic troubleshooting and diagnostic procedures
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically 3,000 miles for conventional oil, 5,000-7,500 miles for synthetic oil (consult manual for exact recommendations based on oil type and driving conditions).
        
     
    
        
            Transmission Fluid Change:
        
        
            Recommended every 30,000-50,000 miles for automatic transmissions, depending on usage.
        
     
    
        
            Coolant Flush:
        
        
            Recommended every 30,000-50,000 miles or 2-3 years.
        
     
    
    
        
            Engine Oil Type V6:
        
        
            API SG or higher. Viscosity: 5W-30 or 10W-30 depending on temperature (consult manual).
        
     
    
        
            Engine Oil Type V8:
        
        
            API SG or higher. Viscosity: 5W-30 or 10W-30 depending on temperature (consult manual).
        
     
    
        
            Transmission Fluid Atf:
        
        
            Dexron III (or equivalent/later spec like Dexron VI) for 4L60E/4L80E.
        
     
    
        
            Transfer Case Fluid:
        
        
            GM Auto-Trak II or equivalent for NP243/NP246.
        
     
    
        
            Power Steering Fluid:
        
        
            GM Power Steering Fluid or Dexron III.
        
     
    
    
        
            Vortec Head Gaskets:
        
        
            Certain Vortec V8 engines (especially earlier versions) can be prone to coolant leaks at the intake manifold gaskets or cylinder head gaskets.
        
     
    
        
            ABS Sensor Failure:
        
        
            ABS wheel speed sensors can fail, leading to ABS warning lights.
        
     
    
        
            Window Regulator Failure:
        
        
            Power window regulators can become weak or break over time.
        
     
    
        
            Exhaust Manifold Leaks:
        
        
            Exhaust manifold bolts can break off, causing exhaust leaks.
        
     
    
        
            Heater Core Leaks:
        
        
            Heater cores are known to leak, causing coolant loss and a sweet smell inside the cabin.