🏷️ Basic Information Identification Make: GMC Model: C3500 Year: 1991 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, GMC C3500 owners Competitive Analysis Advantage: Licensed OE information, convenience of online access, comprehensive coverage compared to older printed manuals Key Features Licensing: Officially Licensed, derived from OE (Original Equipment) materials Developer: RepairSurge Convenience: Instant online access, accessible on multiple devices 📋 Manual Details Coverage Areas Manual Type: Official Service and Repair Manual Software Language: English Format: Online Software (Web Browser Access) Access Duration: 1 Year (with discounts for additional years) Device Compatibility: PC, Laptop, Smartphone, Tablet (with internet connection) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnosis, repair procedures for all available engines Fuel System: Fuel injection systems, carburetors (if applicable), fuel pumps, lines, and filters Cooling System: Radiator, water pump, thermostat, hoses, fan, coolant specifications Ignition System: Spark plugs, ignition coils, distributors, timing, diagnostic procedures Exhaust System: Catalytic converter, mufflers, pipes, emissions controls Transmission Manual: Clutch, gearbox, shifting mechanisms, fluid specifications, repair Transmission Automatic: Torque converter, valve body, seals, fluid specifications, diagnosis, repair Drivetrain: Drive shafts, U-joints, differentials, axle shafts, hub bearings Steering System: Power steering pump, steering gear/rack, tie rods, linkages, alignment specifications Suspension System: Front and rear suspension components, springs, shock absorbers, ball joints, control arms, bushings Brake System: Brake pads, rotors, calipers, drums, wheel cylinders, master cylinder, power booster, ABS (if equipped), bleeding procedures Electrical System: Wiring diagrams, component testing, fuses, relays, battery, charging system, starting system Lighting System: Headlights, taillights, turn signals, interior lighting, bulb types and replacement HVAC System: Air conditioning, heating, ventilation, blower motor, climate controls, refrigerant types Body And Frame: Body panel removal/installation, glass replacement, door mechanisms, chassis specifications Interior Trim: Dashboard, door panels, seats, upholstery, trim panel removal and installation Procedures Included Basic Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tire rotation Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides Repair Procedures: Step-by-step instructions for component removal, repair, and installation Component Rebuild: Detailed instructions for rebuilding engines, transmissions, carburetors, etc. Diagnostics: Electrical testing, mechanical testing, using diagnostic tools Technical Depth Depth: Comprehensive factory-level service and repair information Detail Level: Detailed specifications, torque values, clearances, diagnostic trouble codes (DTCs) if applicable Visual Aids: Likely includes diagrams and illustrations for procedures (based on OE material derivation) 📊 Manual Specifications File Format Digital Format: Online software accessible via web browser Print Quality Print Capability: Pages can be printed from the online interface Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (VIN Z), 5.7L V8 (VIN H), 7.4L V8 (VIN J) Performance 4.3L V6 (Vin Z) Horsepower: Approx. 160 hp @ 4000 rpm 4.3L V6 (Vin Z) Torque: Approx. 230 lb-ft @ 2000 rpm 5.7L V8 (Vin H) Horsepower: Approx. 190 hp @ 4000 rpm 5.7L V8 (Vin H) Torque: Approx. 300 lb-ft @ 2400 rpm 7.4L V8 (Vin J) Horsepower: Approx. 230 hp @ 3600 rpm 7.4L V8 (Vin J) Torque: Approx. 400 lb-ft @ 2000 rpm Fuel System Fuel Delivery: Throttle Body Injection (TBI) for 4.3L and 5.7L; TBI for 7.4L Fuel Type: Unleaded Gasoline Engine Oil Capacity 4.3L V6 Oil Capacity: 5 US quarts (4.7 L) with filter 5.7L V8 Oil Capacity: 5 US quarts (4.7 L) with filter 7.4L V8 Oil Capacity: 7 US quarts (6.6 L) with filter 🔧 Transmission Standard Standard Transmission: 4-speed manual (NV4500 or Muncie/Getrag SM465) Optional Optional Transmission: 4-speed automatic (4L80-E) Features Automatic Transmission Features: Electronic control, overdrive Fluid Type Automatic Transmission Fluid: Dexron-III (or equivalent) Manual Transmission Fluid: GL-4 Gear Oil (specific viscosity may vary by transmission model, e.g., 75W-90) 📐 Dimensions Exterior Body Styles: Regular Cab, Extended Cab Bed Lengths: 7.5 ft (Standard Bed), 8.5 ft (Long Bed) Wheelbase: Varies by configuration (e.g., 130.0 in for Regular Cab Short Bed, 164.5 in for Extended Cab Long Bed) Weights Gvwr: Exceeds 8,500 lbs, up to 10,000+ lbs depending on configuration (Class 3 Truck) 🛡️ Safety Features Ratings Safety Ratings: NHTSA ratings for this era typically focused on frontal impacts; specific individual crash test results may vary. ABS was optional on some models. Active Features Active Safety Features: Anti-lock Braking System (ABS) - Optional Passive Features Passive Safety Features: Seat belts 💡 Technology Features Infotainment Infotainment Features: Factory-installed AM/FM stereo with cassette player was common. Optional features may have included graphic equalizers or premium speaker systems. Driver Assistance Driver Assistance Features: Limited by modern standards. ABS was the primary advanced feature available. Connectivity Connectivity Features: None in the modern sense (no Bluetooth, USB, etc.). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions (refer to manual for specific recommendations). Transmission Service Interval: Automatic transmission fluid and filter change approximately every 30,000-60,000 miles. Manual transmission fluid may be a...