Manual Coverage
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Systems Covered
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Engine:
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Comprehensive engine repair, diagnostics, and overhaul for all applicable gasoline engines.
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Fuel System:
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Detailed coverage of fuel injection systems (TBI and MPFI), fuel pumps, injectors, lines, and evaporative emissions control.
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Cooling System:
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Radiator, water pump, thermostat, cooling fan operation, and coolant specifications.
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Ignition System:
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Spark plugs, ignition coils, distributor (if applicable), timing, and diagnostic procedures.
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Transmission:
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Manual and automatic transmission repair, diagnostics, fluid specifications, and overhaul procedures.
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Drivetrain:
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Front-wheel drive axle shafts, CV joints, differential, and related components.
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Brakes:
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Front disc and rear drum brake systems, hydraulic components, parking brake, and ABS (if equipped).
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Suspension:
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Front struts, rear shock absorbers, control arms, ball joints, tie rod ends, and alignment specifications.
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Steering:
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Power steering system components, steering gear, and diagnostic troubleshooting.
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Electrical System:
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Battery, charging system, starter, lighting, wiring diagrams for all circuits, and component testing.
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HVAC:
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Heating, ventilation, and air conditioning system components, refrigerant handling, and troubleshooting.
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Body And Trim:
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Exterior body panels, interior trim, door mechanisms, glass replacement, and panel alignment.
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Diagnostic Troubleshooting:
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Systematic troubleshooting trees and fault code interpretation for engine, transmission, and other major systems.
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Procedures Included
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Maintenance:
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Recommended scheduled maintenance, fluid changes, filter replacements, and component inspections.
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Repair:
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Step-by-step repair instructions for a wide range of components, from minor adjustments to major overhauls.
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Diagnostics:
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Detailed diagnostic procedures for identifying causes of malfunctions, including symptom analysis and test equipment usage.
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Assembly Disassembly:
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Complete instructions for removing and installing major components and sub-assemblies.
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Wiring Diagrams:
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Detailed, system-specific wiring diagrams for electrical components and circuits.
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Technical Depth
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Depth:
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Factory-level technical information suitable for professional technicians and advanced DIYers, covering diagnostics, repair, and specifications.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically 3,000 miles or 3 months (recommended for older vehicles), or as per owner's manual specifications based on driving conditions.
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Engine Coolant Flush:
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Every 30,000 miles or 2 years, or as specified by GM for Dex-Cool compatible coolant if used.
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Transmission Fluid Change:
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Automatic: Every 50,000-100,000 miles, Manual: As needed or at major service intervals, refer to manual.
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Fluid Specifications
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Engine Oil Viscosity:
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SAE 5W-30 or 10W-30 (check owner's manual for specific engine and temperature range).
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Engine Oil API Service:
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API SG or higher.
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Coolant:
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GM Type 1 or Type 2 antifreeze (typically ethylene glycol based, with appropriate water mix).
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Automatic Transmission Fluid:
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Dexron III or equivalent (e.g., Dexron VI is backward compatible).
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Power Steering Fluid:
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GM Power Steering Fluid or Dexron III/VI.
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Known Issues
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Engine Misfires:
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Common issues can include failing ignition components (spark plugs, wires, coil packs), fuel injector issues, and EGR valve problems.
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Cooling System Leaks:
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Aging hoses, water pump seals, and radiator leaks are frequent concerns due to age.
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Suspension Wear:
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Worn ball joints, tie rod ends, struts, and control arm bushings can lead to steering looseness and poor handling.
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Electrical Gremlins:
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Corroded ground points, failing sensors, and aging wiring harnesses can cause intermittent electrical issues.
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HVAC Actuator Failure:
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Blend door actuators and vacuum actuators can fail, leading to improper temperature control or air direction.
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