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.