🏷️ Basic Information Identification Make: GMC Model: K2500 Year: 1999 Codes Platform: GMT800 👋 Introduction Market Position Target Audience: Owners of the 1999 GMC K2500 seeking detailed repair and maintenance information. Competitive Analysis Advantage Over Print: Instant access, searchability, lower cost compared to traditional printed manuals, update potential. Key Features Licensing: Officially licensed, derived from OE (Original Equipment) materials. Convenience: Accessible on any PC, laptop, smartphone, or tablet with internet connection. Access Duration: One year of access with discounts for renewal. 📋 Manual Details Coverage Areas Main Coverage: Complete Service and Repair Information Specific Systems Covered: Engine, Transmission, Drivetrain, Brakes, Steering, Suspension, Electrical, HVAC, Body, Chassis Page Count Estimated Page Count: Varies by engine/options, but comprehensive factory-level detail. Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Online Digital Access (Web Browser Compatible) Searchability: Full text search functionality for quick information retrieval. Interactivity: Likely includes links between sections for easier navigation (typical of digital manuals). 📖 Manual Coverage Systems Covered Engine Mechanical: Full diagnostic, repair, and overhaul procedures for all applicable engines. Engine Performance: Fuel system, ignition system, emissions control, cooling system diagnostics and repair. Transmission: Service and repair for automatic and manual transmissions, including hydraulic and electronic controls. Drivetrain: Front and rear axle service, driveshaft, U-joints, differential, and 4WD system repair. Brakes: ABS diagnostics, brake caliper and rotor replacement, brake bleeding, parking brake service. Steering: Power steering system diagnosis and repair, steering column service, steering gear/rack repair. Suspension: Front and rear suspension component replacement (ball joints, control arms, shocks, springs), alignment specifications. Electrical System: Wiring diagrams, component testing, starter, alternator, battery, lighting, power windows, locks. HVAC: Air conditioning system service, heater core replacement, blower motor, climate control diagnostics. Body And Chassis: Door panel removal, interior trim, exterior body panel repair, glass replacement, frame specifications. Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes, filter replacements, lubrication points. Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides, common issue diagnosis. Repair: Detailed step-by-step repair instructions for virtually all vehicle components. Diagnostics: OBD-II diagnostics, sensor testing, actuator testing, electrical circuit analysis. Torque Specifications: Detailed torque specifications for critical fasteners across all systems. Wiring Diagrams: Comprehensive electrical system wiring schematics for easy troubleshooting. Technical Depth Depth: Comprehensive factory-level technical information suitable for professional technicians and advanced DIYers. Diagnostic Tools: Information useful for using scan tools and specialized diagnostic equipment. 📊 Manual Specifications File Format Digital Format: Web-based platform accessible via browser. Print Quality Digital Quality: High-resolution diagrams, clear text, zoomable content. Binding Type Binding: Not Applicable (Digital Format) Paper Type Paper Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Option 1: 5.7L V8 (350ci) Vortec L31 Engine Option 2: 7.4L V8 (454ci) Vortec L29 Engine Option 3: 6.5L V8 Turbo Diesel (LM7/L65) Performance 5.7L V8 Horsepower: Approx. 255 hp @ 4600 rpm 5.7L V8 Torque: Approx. 330 lb-ft @ 2800 rpm 7.4L V8 Horsepower: Approx. 295 hp @ 4000 rpm 7.4L V8 Torque: Approx. 445 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPFI) Fuel Type: Unleaded Gasoline (for V8s), Diesel Fuel (for 6.5L Turbo Diesel) 🔧 Transmission Standard Transmission Type Standard: 4-speed Automatic (4L80-E) Optional Transmission Type Optional: 5-speed Manual (NV4500) - Less common on K2500 models, more prevalent in older or specialized configurations. Features Drivetrain Options: 4WD (NP246 or NP241 transfer case) 📐 Dimensions Exterior Wheelbase Std Cab: 130.0 inches (3302 mm) Wheelbase Ext Cab: 153.0 inches (3886 mm) Weights Gvwr: Up to 8600 lbs (3901 kg) depending on configuration 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 3 Stars (for 2WD variants of the platform, 4WD generally higher) Active Features ABS: Standard Anti-lock Braking System (ABS) on rear wheels, optional on front. Passive Features Airbags: Driver and Passenger Airbags (Standard) 💡 Technology Features Infotainment Audio System: Factory AM/FM Stereo with Cassette Player and optional CD Player. Speaker configurations vary by trim. Driver Assistance Cruise Control: Available as standard or optional equipment. Connectivity Onboard Diagnostics: OBD-II compliant system for emission and engine diagnostics. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 to 7,500 miles depending on oil type and driving conditions (refer to manual for specifics). Transmission Fluid Change: Every 30,000 to 100,000 miles for automatic transmissions, depending on towing and usage (consult manual). Fluid Specifications Engine Oil 5.7L: API SJ, SAE 5W-30 (check manual for exact viscosity and type) Transmission Fluid 4L80-E: Dexron III / Mercon Coolant: Ethylene Glycol (Green), 50/50 mix with distilled water Known Issues Common Wear Item: Suspension components (ball joints, tie rods), steering components (idler/pitman arms). Engine Specific Note: Vortec engines are generally robust; potential issues can include intake manifold gaskets or valve cover gaskets leaking over time. Diesel Specific Note: 6.5L Turbo Diesel can be prone to overheating and head gasket failures if not properly maintained and monitored. 📚 Vehicle History Brand Heritage Gmc Truck...