Engine Mechanical:
Complete overhaul, disassembly, assembly, diagnostics, specifications for 3800 V6 (LG7) and 4.9L V8 (L27) engines.
Fuel System:
Fuel injection system (ECM controlled), fuel pump, fuel injectors, fuel pressure regulator, evaporative emission control (EVAP).
Ignition System:
Distributorless Ignition System (DIS) or traditional ignition, ignition coil, spark plugs, ignition timing, diagnostics.
Cooling System:
Radiator, water pump, thermostat, cooling fan, coolant specifications, pressure testing.
Lubrication System:
Oil pump, oil filter, oil pan, oil pressure, lubrication specifications.
Emission Control:
Catalytic converter, EGR system, PCV system, oxygen sensors, emissions diagnostics, compliance information.
Transmission Automatic:
4-speed automatic transmission (e.g., 4T60-E), hydraulic controls, electronic controls, shift solenoids, torque converter, fluid type and capacity, diagnostics, overhaul procedures.
Suspension Front:
MacPherson strut, control arms, ball joints, bushings, springs, shock absorbers, alignment specifications.
Suspension Rear:
Independent rear suspension (e.g., trailing arm), struts, control arms, bushings, alignment specifications.
Steering:
Power steering system, steering gear, power steering pump, fluid type and capacity, steering linkage, alignment specifications.
Brakes Front:
Front disc brakes, caliper, rotor specifications, pad replacement, bleeding procedures.
Brakes Rear:
Rear disc or drum brakes, caliper/wheel cylinder, rotor/drum specifications, pad/shoe replacement, bleeding procedures.
Parking Brake:
Parking brake mechanism, adjustment, cable replacement.
Electrical System General:
Battery, alternator, starter motor, wiring harnesses, fuses, relays, charging system diagnostics.
Lighting System:
Headlights, taillights, interior lighting, bulb specifications, troubleshooting.
Instrumentation:
Instrument cluster, gauges, warning lights, speedometer, tachometer, diagnostics.
Climate Control:
Air conditioning system (compressor, refrigerant, R-134a retrofitting information if applicable for later updates), heater core, blower motor, HVAC controls, diagnostics.
Body Exterior:
Doors, hood, trunk lid, fenders, bumpers, glass, mirrors, body panel alignment, rust prevention.
Body Interior:
Seats, upholstery, dashboard, door panels, headliner, trim, seat belts, airbags (SRS - Supplemental Restraint System), immobilizer system.
Wiper Washer:
Wiper motor, wiper arms, wiper blades, washer pump, washer fluid reservoir, troubleshooting.
Audio Visual:
Radio, speakers, antenna, wiring for audio system.
Cruise Control:
Cruise control system operation, diagnostics, actuator, buttons.
Multiplex Communication:
Information on multiplex communication systems if present on specific models.
Maintenance Procedures:
Oil change, filter replacement, fluid checks and top-offs, tire rotation, spark plug replacement, belt inspection and replacement, brake pad/shoe replacement, coolant flush.
Diagnostic Procedures:
Troubleshooting guides for common symptoms (e.g., no-start, poor performance, electrical issues), diagnostic trouble codes (DTCs) interpretation, use of diagnostic tools.
Repair Procedures:
Detailed step-by-step instructions for engine repair, transmission overhaul, suspension component replacement, brake system repair, electrical component replacement, body panel repair, HVAC system repair.
Component Replacement:
Instructions for replacing major components like alternators, starters, fuel pumps, water pumps, radiators, master cylinders, power steering pumps, AC compressors.
Wiring Schematics:
Comprehensive wiring diagrams for all vehicle electrical systems, including power distribution, engine control, lighting, accessories, and body electronics.
Adjustment Procedures:
Procedures for adjusting parking brake, door latches, throttle linkage, and other critical components.
Drivetrain:
Information on axles, drive shafts, and differentials for the front-wheel-drive system.
Body Hardware:
Detailed procedures for servicing doors, hood, trunk, and interior trim panels.
Glass Replacement:
Instructions for replacing windshield, side glass, and rear glass.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics and wiring schematics.
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions (refer to manual for specific recommendations based on oil type used).
Transmission Fluid Change:
Recommended every 30,000-60,000 miles, depending on transmission type and usage (check manual for exact interval).
Coolant Flush:
Typically every 30,000-60,000 miles or 2-3 years.
Spark Plug Replacement:
Intervals vary based on plug type, but often around 30,000-100,000 miles.
Engine Oil:
Consult manual for specific viscosity grade (e.g., 5W-30 or 10W-30) and API service category.
Transmission Fluid:
Dexron III (or equivalent) for automatic transmissions.
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors. GM specified coolant or equivalent.
Power Steering Fluid:
Dexron II or III (or equivalent) power steering fluid.
Engine 3800 V6:
Head gasket issues can occur in some higher-mileage 3800 engines, though generally considered reliable. Intake manifold gasket leaks are also a possibility.
Transmission 4T60E:
Electronic control issues, solenoid failures, and wear in higher mileage units are not uncommon for this transmission. Regular fluid changes are crucial.
Suspension Components:
Wear in bushings, ball joints, and struts can lead to a less precise ride and potential alignment issues over time.
Electrical Connectors:
Corrosion or loosening of electrical connectors can cause intermittent issues in various systems.