Basic Information Identification Make: Chevrolet Model: Express 3500 Year: 1999 Codes Chassis Code: GMT800 (for some models) Introduction Market Position Vehicle Segment: Full-size Van (Commercial and Passenger) Competitive Analysis Key Competitors 1999: Ford E-Series, Dodge Ram Van Key Features Manual Advantage 1: Officially licensed and derived from OE materials Manual Advantage 2: Instant online access and convenient digital format Manual Advantage 3: Cost savings compared to traditional printed manuals and professional labor Manual Advantage 4: One year of access with discounts for renewal Manual Details Coverage Areas Primary Coverage: Comprehensive service and repair information Secondary Coverage: Maintenance, diagnostics, troubleshooting, electrical diagrams, specifications Page Count Estimated Pages: Extensive (typical for OE service manuals, likely 1000+ pages equivalent) Manual Type Type: Service and Repair Manual Software Language Language: English Format Format: PDF Download (Digital Access) Manual Coverage Systems Covered Engine: Detailed diagnostics, repair procedures, component replacement for all available engines Transmission: Service, repair, and overhaul for automatic transmissions Drivetrain: Rear-wheel drive (RWD) and all-wheel drive (AWD) systems, including driveshafts, differentials Brakes: Disc and drum brake systems, ABS (Anti-lock Braking System) diagnostics and repair Suspension Steering: Front and rear suspension components, steering gear, power steering system Electrical: Comprehensive wiring diagrams, component testing, diagnostic procedures for all electrical systems Heating Air Conditioning: HVAC system operation, diagnosis, and repair Body Chassis: Body panel repair, interior trim, exterior components, frame and chassis components Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, inspections Repair: Step-by-step repair instructions for all major vehicle systems Diagnostics: Troubleshooting guides, symptom-based diagnostics, fault code interpretation Troubleshooting: Systematic approach to identifying and resolving common and uncommon issues Component Replacement: Detailed instructions for replacing virtually any part on the vehicle Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts Manual Specifications File Format Digital Format: PDF, accessible via web browser on PC, laptop, smartphone, tablet Print Quality Printability: High-resolution, suitable for printing individual pages or sections Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Engine Specifications Primary Engine Engine Options: 4.3L V6, 5.0L V8, 5.7L V8, 7.4L V8 (VIN codes specific) 4.3L V6 Specs: Vortec 4300, 200 hp @ 4600 rpm, 255 lb-ft @ 2800 rpm (approximate) 5.7L V8 Specs: Vortec 350, 250 hp @ 4600 rpm, 315 lb-ft @ 2800 rpm (approximate) 7.4L V8 Specs: Vortec 454, 290 hp @ 4000 rpm, 410 lb-ft @ 3200 rpm (approximate) Performance Fuel Delivery: Electronic Fuel Injection (EFI) Fuel System Ignition System: Distributorless Ignition System (DIS) or Distributor Ignition (DI) depending on specific engine and build date Transmission Standard Transmission Type: 4-speed Automatic (e.g., 4L60-E, 4L80-E) Optional Manual Transmission: Not commonly offered for the 3500 model, primarily automatic Features Overdrive: All transmissions feature overdrive Dimensions Exterior Wheelbase: Various options available, typically 135" and 155" Overall Length: Varies based on wheelbase and body configuration Weights Gvwr: Up to 9,600 lbs (4354 kg) or higher depending on configuration Safety Features Ratings NHTSA Front Impact: Not directly comparable to modern ratings; designed for commercial use Active Features ABS: Available on some models Passive Features Airbags: Driver-side airbag standard Technology Features Infotainment Audio System: Factory AM/FM radio with cassette or CD player (optional) Driver Assistance Cruise Control: Available on most models Connectivity OBD Ii Support: Yes, supports OBD-II diagnostics Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles or 6 months, consult manual for specifics Transmission Fluid Change: Refer to manual; often around 50,000-100,000 miles or under severe service Fluid Specifications Engine Oil Type: API SG or SH, SAE 5W-30 or 10W-30 (depending on ambient temperature). Consult manual for exact specifications. Transmission Fluid Type: Dexron-III (or equivalent) Coolant Type: Dex-Cool (Orange) Extended Life Coolant or equivalent silicate-free, extended-life antifreeze Known Issues Common Issues 1: Vortec engine intake manifold gasket leaks Common Issues 2: Transmission shift solenoid issues Common Issues 3: Fuel pump failures Common Issues 4: Body rust, particularly in wheel wells and lower body panels Common Issues 5: HVAC blower motor resistor failure Vehicle History Brand Heritage Chevrolet Van Legacy: Direct descendant of the Chevrolet Van line dating back to the 1960s Model Evolution Gmt800 Platform: Introduction of the GMT800 platform brought significant updates in styling, chassis, and powertrain options. Production Manufacturing Plant: General Motors Fort Wayne Assembly Plant (Indiana) Awards & Recognition Recognitions Commercial Vehicle Accolades: Chevrolet vans have historically been popular choices for commercial fleets due to their durability and utility.