🏷️ Basic Information Identification Make: Ford Model: Expedition Year: 1998 Codes Platform: UN171 👋 Introduction Market Position Vehicle Class: Full-size SUV Target Audience: Owners, DIY enthusiasts, independent repair shops Key Features Coverage: All models and trims for the 1998 model year Detail Level: Factory-level detail, identical to dealership technician manuals Ease Of Use: Digital format allows printing of specific pages, no greasy pages 📋 Manual Details Coverage Areas Manual Type: Factory Service and Repair Manual Language: English Format: PDF File Type: Digital Download (Printable) Compatibility: Windows and Mac OS 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Lube, Ignition, Starting, Charging, Cooling, Emission Control, Automatic Transmission, Manual Transmission, Transfer Case Chassis: Suspension, Steering, Brakes (Hydraulic and Parking), Axles, Drive Shafts, Differentials, Wheels, Tires Body And Electrical: Body Panels, Interior Components, Exterior Trim, HVAC, Restraint Systems (Airbags, Seatbelts), Lighting, Instrumentation, Power Accessories (Windows, Locks), Wiper/Washer, Audio System, Cruise Control, Immobilizer, Multiplex/CAN Communication Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication, Inspections Repair: Component Disassembly, Reassembly, Troubleshooting, Diagnosis, Component Replacement, Overhaul Procedures Diagnostics: Diagnostic Trouble Codes (DTCs), Wiring Schematics, Component Testing Procedures, Symptom-based Troubleshooting Technical Depth Depth: Comprehensive (from basic maintenance to complete engine rebuilds and complex electrical diagnostics) Information Type: Factory-level, specific to all 1998 Ford Expedition models and configurations 📊 Manual Specifications File Format Digital Format: PDF Print Quality Printability: High-resolution, all pages printable Binding Type Digital Binding: N/A (Digital) Paper Type Digital Paper: N/A (Digital) Features Searchability: Likely text-searchable (depending on PDF conversion quality) Zoom Capability: High zoom for detailed illustrations and schematics ⚙️ Engine Specifications Primary Engine Engine Code: 4.6L SOHC V8 (Triton) Displacement: 4.6 Liters (281 cubic inches) Configuration: V8 Valve Train: Single Overhead Camshaft (SOHC), 32 Valves Performance Horsepower Est: 215 HP @ 4500 RPM Torque Est: 290 lb-ft @ 3400 RPM Fuel System Injection Type: Electronic Fuel Injection (EFI) / Sequential Electronic Fuel Injection (SEFI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transmission Transmission Model: 4R70W Optional Manual Transmission: Not Available for 1998 Expedition Features Transfer Case: Electronic Shift-On-The-Fly (ESOF) 2-speed Transfer Case (optional) 📐 Dimensions Exterior Wheelbase: 119.0 inches Length: 204.2 inches Width: 79.9 inches Height: 77.0 inches Weights Curb Weight Est: 4900 - 5500 lbs (depending on configuration) Towing Capacity Est: Up to 8,900 lbs 🛡️ Safety Features Ratings NHTSA Frontal Driver Est: 4/5 Stars (Good/Acceptable) NHTSA Frontal Passenger Est: 4/5 Stars (Good/Acceptable) Active Features ABS: Standard Anti-lock Braking System (ABS) on all four wheels Passive Features Airbags: Driver and front passenger airbags Seatbelts: 3-point seatbelts for all occupants, shoulder belts in rear 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette and optional CD player Driver Assistance Cruise Control: Standard electronic cruise control Immobilizer: Factory Anti-Theft System (PATS - Passive Anti-Theft System) available Connectivity Diagnostic Port: OBD-II (On-Board Diagnostics II) compliant 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles or 3-6 months (check manual for specific recommendation based on driving conditions) Engine Air Filter: Replace every 15,000 - 30,000 miles or as needed based on inspection Spark Plugs: Replace at 100,000 miles (typically platinum or iridium tipped) Fluid Specifications Engine Oil Type: SAE 5W-30 (API SG or SH certified) Engine Oil Capacity: 6 Quarts (with filter) Transmission Fluid Type: Mercon V (or equivalent) Transmission Fluid Capacity: Approximately 12 Quarts (total fill) Coolant Type: Ford Premium Engine Coolant (Green) or equivalent (50/50 mix) Known Issues Intake Manifold Gaskets: Potential for coolant leaks due to plastic intake manifold design (common on 4.6L) Transmission Issues: Early models may exhibit shifting issues or solenoid problems; proper fluid maintenance is critical Rear Main Seal: Can develop leaks over time 📚 Vehicle History Brand Heritage Ford SUV Legacy: Built upon Ford's truck platform expertise, following Bronco and Explorer success Model Evolution Generation: First Generation (UN171) Introduction Year: 1997 (for the 1998 model year) Platform Shared With: Ford F-150 (Nite platform) Production Manufacturing Location: Wayne, Michigan, USA 🏆 Awards & Recognition Recognitions Truck Of The Year: None specifically for 1998 Expedition in major publications, but part of Ford's strong truck lineup