🏷️ Basic Information Identification Make: GMC Model: C1500 Year: 1994 Codes Platform Code: GMT400 👋 Introduction Market Position Positioning: Comprehensive digital service resource for owners and independent repair facilities. Competitive Analysis Comparison: Offers greater convenience and accessibility than older printed manuals; licensed OE data ensures accuracy. Key Features Accessibility: Accessible via internet connection on any PC, laptop, smartphone, or tablet. Licensing: Officially licensed, derived from OE (Original Equipment) materials. Subscription: Includes one year of access, with options for renewal discounts. 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Page Count Estimated Pages: Extensive (Digital format provides comprehensive data) Manual Type Type: Digital Service and Repair Manual Software Language Language: English Format Format: Online Access (Web Browser based) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, and overhaul for gasoline engines. Drivetrain: Coverage for rear-wheel drive (RWD) and optional four-wheel drive (4WD) systems, including differentials and drivelines. Suspension: Front and rear suspension components, alignment specifications, and repair procedures. Steering: Power steering system diagnosis, repair, and component replacement. Brakes: Front disc and rear drum brake systems, ABS (if equipped), hydraulic system repairs. Electrical: Comprehensive wiring diagrams, component testing, diagnostic procedures for all electrical systems. HVAC: Heating, ventilation, and air conditioning system diagnosis and repair. Body: Body panel repair, interior trim, glass replacement, and door mechanisms. Procedures Included Maintenance: Scheduled maintenance tasks, fluid changes, filter replacements, inspections. Troubleshooting: Step-by-step diagnostic flowcharts for common and complex issues. Repair: Detailed instructions for component removal, replacement, and reassembly. Diagnostics: Procedures for diagnosing engine performance, electrical faults, and mechanical issues. Engine Mechanical: Cylinder head removal/installation, piston and connecting rod service, crankshaft and bearing service, camshaft and timing gear/chain replacement. Fuel System Service: Fuel pump replacement, fuel injector testing and replacement, fuel pressure testing. Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIYers. Cooling System Cooling System Repair: Radiator removal/installation, water pump replacement, thermostat service, fan clutch diagnosis. Exhaust System Exhaust Repair: Exhaust manifold replacement, catalytic converter replacement, muffler and pipe repairs. Electrical Procedures Starter Alternator: Testing and replacement of starter motor and alternator. Lighting Systems: Headlight, taillight, and interior lighting system diagnosis and repair. Power Windows Locks: Diagnosis and repair of power window regulators, motors, and power door lock actuators. Bodywork Procedures Door And Panel Repair: Door hinge adjustment, door skin replacement, quarter panel repair. Glass Replacement: Windshield, side window, and rear window replacement procedures. Chassis And Frame Frame Inspection: Inspection and basic repair guidance for the truck frame. 📊 Manual Specifications File Format Digital Format: Web-based application; no specific file download format like PDF or DOC. Print Quality Print Quality: N/A (Digital format) Binding Type Binding: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (VIN 'X'), 5.0L V8 (VIN 'H'), 5.7L V8 (VIN 'P'). Performance 4.3L V6 Horsepower: Approx. 160 hp @ 4000 rpm 4.3L V6 Torque: Approx. 230 lb-ft @ 2000 rpm 5.0L V8 Horsepower: Approx. 175 hp @ 4000 rpm 5.0L V8 Torque: Approx. 265 lb-ft @ 2400 rpm 5.7L V8 Horsepower: Approx. 200 hp @ 4000 rpm 5.7L V8 Torque: Approx. 300 lb-ft @ 2400 rpm Fuel System Fuel Delivery: Multi-Port Fuel Injection (MPFI). Fuel Type: Unleaded gasoline. 🔧 Transmission Standard Standard Transmission: 4-speed automatic (4L60). Optional Optional Transmission: 5-speed manual (NV3500). Features Transmission Fluid Type: Dexron-III (or equivalent) automatic transmission fluid (ATF). 📐 Dimensions Exterior Body Styles: Regular Cab, Extended Cab. Wheelbase Options: 117.5 inches (Regular Cab), 131.5 inches (Extended Cab). Weights Curb Weight Range: Approx. 4,000 - 4,500 lbs depending on configuration. 🛡️ Safety Features Ratings NHTSA Ratings: N/A for 1994 model year; crash test data may be limited or unavailable. Active Features ABS: Anti-lock Braking System (ABS) available as an option. Passive Features Airbags: Driver-side airbag standard. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player; optional CD player may have been available. Driver Assistance Cruise Control: Optional cruise control system. Connectivity Vehicle Communication: N/A (No integrated connectivity features for this era). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Air Filter Replacement: Every 15,000-30,000 miles or as needed based on inspection. Spark Plug Replacement: Refer to manual for specific engine, typically around 30,000-60,000 miles for conventional plugs. Fluid Specifications Engine Oil Type: API SG or SH, SAE 5W-30 or 10W-30 (check owner's manual for specific climate recommendations). Coolant Type: Ethylene glycol-based coolant (conventional green type) with a 50/50 mix of coolant and distilled water. Brake Fluid Type: DOT 3 brake fluid. Known Issues Common Problems: Examples include dashboard cracks, intake manifold gasket leaks (especially on Vortec engines introduced later in the generation, but relevant for early versions), potential for rear axle seal leaks, and minor electrical gremlins. 📚 Vehicle History Brand Heritage Brand Significance: GMC...