🏷️ Basic Information Identification Make: GMC Model: K2500 Year: 1998 Codes Chassis Code: GMT400 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, fleet maintenance Competitive Analysis Advantage: Official licensing, OE data derived, up-to-date digital format compared to outdated printed manuals Key Features Convenience: Instant online access, searchable content, available on multiple devices Cost Effectiveness: Saves money compared to dealership repairs and expensive printed manuals Software Provider: RepairSurge 📋 Manual Details Coverage Areas Vehicle Coverage: 1998 GMC K2500 (all configurations including 2WD and 4WD) Page Count Estimated Page Count: Comprehensive (digital format, equivalent to several thousand printed pages) Manual Type Type: Service and Repair Manual Software Source Data: Licensed OE (Original Equipment) materials Language Language: English Format Access Format: Online Web-Based Access (1 Year Subscription) 📖 Manual Coverage Systems Covered Powertrain: Engine (all variants), transmission (automatic and manual), transfer case, drive axles, differential Chassis: Suspension (front and rear), steering system, braking system (front and rear discs/drums, ABS) Electrical: Wiring diagrams, lighting, instrument panel, power accessories, charging system, starting system, ignition system, engine control module (ECM) HVAC: Heating, Ventilation, and Air Conditioning system diagnosis and repair Body: Exterior body panels, interior trim, doors, windows, seats, bumpers Engine Mechanical: Cylinder head removal/installation, piston and connecting rod service, crankshaft service, camshaft inspection and timing Engine Performance: Fuel system components (injectors, fuel pump, pressure regulator), ignition system components (coils, distributor, spark plugs), exhaust system Fuel System Service: Fuel pump replacement, fuel filter replacement, injector cleaning/replacement, fuel pressure testing Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and changes, lubrication, tune-ups, spark plug replacement Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics Repair: Component removal and installation, overhaul procedures, assembly and disassembly Suspension Repair: Ball joint replacement, shock absorber/strut replacement, leaf spring service, steering linkage overhaul Brake System Repair: Brake pad/shoe replacement, caliper/wheel cylinder service, brake rotor/drum machining or replacement, ABS system bleeding and diagnosis Electrical Diagnostics: Troubleshooting charging system issues, starting circuit diagnosis, instrument cluster faults, power window/lock repair Cooling System Service: Radiator, water pump, thermostat, hoses, fan clutch replacement and diagnosis Technical Depth Depth: Factory-level diagnostic procedures, torque specifications, component tolerances, wiring schematics, system descriptions Specifications Accuracy: Precise torque values for all fasteners, critical component clearances, diagnostic parameter specifications 📊 Manual Specifications File Format Compatibility: Accessible via web browser on PC, laptop, smartphone, tablet Print Quality Printability: Designed for digital viewing; printable sections may vary based on browser capabilities Binding Type Binding: N/A (Digital Access) Paper Type Paper Type: N/A (Digital Access) ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (Vortec 4300), 5.0L V8 (Vortec 5000), 5.7L V8 (Vortec 5700), 7.4L V8 (Vortec 7400) Performance Specific Engine Performance: Detailed horsepower and torque figures for each engine variant (e.g., 5.7L V8: approx. 255 hp @ 4600 rpm, 330 lb-ft @ 2800 rpm) Fuel System Fuel Delivery: Multi-port Fuel Injection (MPFI) Engine Management ECM Details: Engine Control Module (ECM) specifications, sensor data, diagnostic routines Diagnostic Trouble Codes: Coverage of OBD-II (On-Board Diagnostics II) codes and their meanings 🔧 Transmission Standard Standard Transmission: 5-Speed Manual (NV3500, NV4500 for heavier duty applications) Optional Optional Transmission: 4-Speed Automatic (4L60E, 4L80E for heavier duty applications) Features Transmission Fluid Spec: Dexron III (or equivalent) for automatic transmissions; GL-4 or GL-5 gear oil for manual transmissions Transfer Case Transfer Case Options: Manual shift (NP208, NP241) or Electronic shift (Autotrac NP246) 📐 Dimensions Exterior Wheelbase: 130.0 inches (Standard Cab), 157.5 inches (Extended/Crew Cab) Overall Length: Varies by cab and bed configuration (e.g., 220-246 inches) Weights Curb Weight: Approx. 4,500 - 5,500 lbs depending on configuration Gvwr: 6800 lbs (K2500) to 8600 lbs (K2500HD) Payload Capacity: Varies by configuration, typically 2000 - 3500 lbs Towing Capacity: Varies significantly by engine, axle ratio, and configuration; consult manual for specific ratings 🛡️ Safety Features Ratings NHTSA Ratings: Refer to specific NHTSA data for 1998; typically 3-star for frontal impact for similar vehicles of the era Active Features ABS: Anti-lock Braking System (ABS) available on front wheels, rear-wheel ABS, or 4-wheel ABS depending on configuration Passive Features Airbags: Driver-side airbag standard Seatbelts: Three-point front seat belts with shoulder belt retractors 💡 Technology Features Infotainment Audio System: AM/FM stereo, cassette player, optional CD player; speaker configurations vary Driver Assistance Cruise Control: Standard on most trims Connectivity Wiring Schematics: Detailed electrical schematics for all systems, aiding in diagnosis of electrical faults 🔧 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 oil type and interval) Transmission Fluid Change: Every 30,000 - 60,000 miles for automatic transmissions, inspect manual transmission fluid at 60,000 miles Fluid Specifications Engine Oil: API SG or higher, SAE 5W-30 or 10W-30 recommended (verify with manual based on engine and temperature) Coolant: GMC/GM approved ethylene glycol coolant (50/50 mix with distilled water) Brake Fluid: DOT...