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Manual Coverage
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Systems Covered
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Engine Mechanical:
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Yes (Diagnosis, Repair, Overhaul)
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Engine Management:
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Yes (Fuel Injection, Ignition, Emissions Control, OBD-I/II Diagnostics)
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Transmission Manual:
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Yes (NV3500, NV4500 Service)
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Transmission Automatic:
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Yes (4L60E, 4L80E Service)
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Drivetrain:
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Yes (Front Suspension, Rear Axle, Driveshaft, Differentials)
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Brakes:
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Yes (Front Disc, Rear Drum/Disc, ABS)
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Steering:
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Yes (Power Steering System, Steering Column)
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Suspension:
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Yes (Front Torsion Bar, Rear Leaf Spring)
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Electrical System:
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Yes (Wiring Diagrams, Components, Charging System, Starting System)
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HVAC:
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Yes (Heating, Ventilation, Air Conditioning Service)
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Body And Chassis:
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Yes (Frame, Body Panels, Doors, Glass, Interior Trim)
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Procedures Included
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Maintenance:
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Yes (Scheduled Service, Fluid Changes, Filter Replacements)
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Troubleshooting:
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Yes (Diagnostic Flowcharts, Symptom-based Diagnosis)
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Repair:
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Yes (Component Replacement, Overhaul, Adjustments)
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Diagnostics:
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Yes (Engine Codes, Sensor Data, System Testing)
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Electrical Troubleshooting:
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Yes (Component Testing, Wiring Repair)
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Technical Depth
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Depth:
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Comprehensive (Factory Level Detail)
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Diagnostics Level:
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Advanced (Includes Scan Tool Data Interpretation)
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Rebuild Procedures:
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Yes (Engine, Transmission, Differential Rebuilds)
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Maintenance
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Service Intervals
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Oil Change Interval:
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Every 3,000-5,000 miles or 6 months, depending on oil type and driving conditions.
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Air Filter Replacement:
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Every 15,000-30,000 miles or as needed based on inspection.
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Spark Plug Replacement:
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Approximately 100,000 miles for some Vortec engines (may vary).
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Fluid Specifications
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Engine Oil Recommendation:
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API SG/SH, SAE 5W-30 or 10W-30 (check owner's manual for specific engine and climate recommendations)
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Coolant Type:
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GM P/N 1052877 or equivalent (Green Ethylene Glycol based)
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Automatic Transmission Fluid:
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Dexron III (GM P/N 12378370 or equivalent)
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Brake Fluid:
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DOT 3
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Known Issues
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Vortec Intake Manifold Gaskets:
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Leaking intake manifold gaskets can lead to coolant leaks and vacuum issues.
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Tbi Engine Issues:
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Throttle Body Injection (less common on '96 models but relevant for earlier GMT400) can have issues with injectors or fuel pressure regulators.
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Heater Core:
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Heater core leaks are a known failure point, often causing coolant smells inside the cabin.
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