🏷️ Basic Information Identification Make: GMC Model: C3500 Year: 1994 Generation Platform Code: GMT400 Codes Body Style: Full-size Pickup Truck Chassis Code: C/K Series 👋 Introduction Market Position Target Audience: DIY enthusiasts and professional technicians Competitive Analysis Advantage Over Print: More convenient, less expensive, instantly accessible, searchable content Key Features Data Source: Licensed information derived from OE (Original Equipment) materials Developer: RepairSurge Licensing: Officially Licensed 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Diagnostics, Troubleshooting Page Count Estimated Page Count: Extensive (Digital Format - Comprehensive Access) Manual Type Type: Online Service and Repair Manual Software Language Language: English Format Format: Web-based Software (Accessible via Browser) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete Engine Overhaul, Repair, and Diagnostics Engine Electrical: Ignition System, Fuel Injection, Sensors, ECM Transmission: Automatic and Manual Transmission Service and Repair Drivetrain: Driveshaft, Differentials, Axles, Transfer Case (if applicable) Suspension: Front and Rear Suspension Components, Alignment, Shocks, Springs Steering: Steering Gear, Power Steering System, Tie Rods Brakes: Front and Rear Brakes (Disc/Drum), ABS System, Parking Brake Electrical System: Wiring Diagrams, Lighting, Fuses, Relays, Power Distribution HVAC: Heating, Ventilation, and Air Conditioning System Service Body And Frame: Body Panel Repair, Door Mechanisms, Glass Replacement Exhaust System: Muffler, Catalytic Converter, Exhaust Manifolds Procedures Included Routine Maintenance: Oil Changes, Filter Replacements, Fluid Checks and Top-offs Troubleshooting: Diagnostic Flowcharts, Common Problem Identification Component Replacement: Detailed step-by-step instructions for part replacement Rebuild Procedures: Engine, Transmission, and Major Component Rebuilds Diagnostics: On-Board Diagnostics (OBD-I) Interpretation and Repair Technical Depth Depth: Comprehensive Factory-Derived Information Diagnostic Level: Advanced diagnostics including component testing and circuit analysis Repair Level: From basic adjustments to complete component overhauls and reassembly 📊 Manual Specifications File Format Software Type: Proprietary Web-Based Application Print Quality Print Option: Pages are typically printable for offline reference Binding Type Binding: Not Applicable (Digital Format) Paper Type Paper Type: Not Applicable (Digital Format) Accessibility Device Compatibility: PC, Laptop, Smartphone, Tablet Internet Requirement: Required for Access Access Duration Initial Access: 1 Year Renewal Option: Discounts Available for Additional Years ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (VIN Z), 5.7L V8 (VIN R), 7.4L V8 (VIN J) Performance Engine Displacement 4 3L: 262 cu in (4.3 L) Engine Displacement 5 7L: 350 cu in (5.7 L) Engine Displacement 7 4L: 454 cu in (7.4 L) Fuel System Fuel Delivery 4 3L 5 7L: Throttle Body Injection (TBI) Fuel Delivery 7 4L: Throttle Body Injection (TBI) Technical Details Engine Block Material: Cast Iron Cylinder Head Material: Cast Iron 🔧 Transmission Standard Manual Transmission Option: 5-Speed Manual (e.g., NV4500 for HD applications) Optional Automatic Transmission Option: 4-Speed Automatic (e.g., 4L60-E for 5.7L, 4L80-E for HD) Features Transmission Fluid Type 4L60E: Dexron III/Mercon Transmission Fluid Type 4L80E: Dexron III/Mercon Transfer Case Options: 2WD, 4WD (with NP241C transfer case common) 📐 Dimensions Exterior Wheelbase Std Cab: 130.0 inches (3302 mm) Wheelbase Ext Cab: 155.0 inches (3937 mm) Weights Gvwr Range: Approximately 7,200 - 10,000+ lbs (depending on configuration) Curb Weight Range: Approximately 4,500 - 5,500+ lbs (depending on configuration) 🛡️ Safety Features Ratings NHTSA Crash Test Data: Limited specific data available for this model year, typically focused on overall vehicle category safety Active Features ABS: Available Anti-lock Braking System (Rear-wheel ABS standard on some models, 4-wheel ABS optional) Passive Features Airbags: Driver-side airbag standard for 1994 model year Seatbelts: 3-point front seatbelts 💡 Technology Features Infotainment Audio System: AM/FM stereo radio, cassette player, optional CD player Driver Assistance Cruise Control: Available Connectivity OBD Standard: OBD-I (On-Board Diagnostics, First Generation) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 - 7,500 miles or 3-6 months, depending on oil type and driving conditions (consult manual for specifics) Transmission Fluid Change Interval: Recommended every 30,000 - 100,000 miles, depending on usage (consult manual) Fluid Specifications Engine Oil Viscosity: Commonly 5W-30 or 10W-30 (check specific engine and temperature range) Coolant Type: Ethylene Glycol based coolant (e.g., conventional green) Known Issues Common Wear Items: Suspension bushings, ball joints, brake components, exhaust system (due to heavy use) Engine Specific Concerns: Potential for intake manifold gasket leaks on some V8 engines, TBI unit maintenance 📚 Vehicle History Brand Heritage Gmc Truck Legacy: GMC has a long history of producing robust and capable trucks for commercial and personal use. Model Evolution Gmt400 Introduction: The GMT400 platform, introduced in 1988 for the C/K series, brought significant aerodynamic and engineering advancements. C3500 Positioning: The C3500 represents the heavy-duty variant of the C/K pickup line, designed for increased payload and towing capacity. 🏆 Awards & Recognition Recognitions Truck Of The Year Contributions: The GMT400 platform trucks, including the C3500, were generally well-regarded for their durability and capability, contributing to GMC's strong reputation in the truck market.