🏷️ Basic Information Identification Make: Ford Model: Mustang Year: 1990 Codes Chassis Code: Fox Body 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, and professional technicians Competitive Analysis Advantage: Provides the same specific information used by dealership technicians, ensuring accuracy and completeness Key Features Uniqueness: Exclusively tailored to the 1990 Ford Mustang, avoiding generic information 📋 Manual Details Coverage Areas Overall Coverage: All models and all repairs A-Z Page Count Estimated Page Count: Approximately 1000+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: Printed Book 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, overhaul, timing, lubrication, cooling, fuel, emissions, ignition systems Transmission: Manual and automatic transmission repair, overhaul, clutch, driveline Brakes: Front and rear disc and drum brake systems, hydraulic circuits, parking brake Suspension: Front and rear suspension components, alignment, shock absorbers, struts, springs Steering: Power steering system, steering column, linkage, steering gear Electrical: Complete wiring diagrams, charging system, starting system, lighting, instruments, accessories, electronic fuel injection (EFI), anti-lock brakes (ABS) Body: Exterior body panels, interior trim, doors, glass, seats, climate control, body structural repairs Procedures Included Maintenance: Routine maintenance schedules, oil changes, filter replacements, fluid checks, tune-ups Diagnostics: Troubleshooting charts, diagnostic trouble codes (DTCs), symptom-based diagnostics Repair: Step-by-step repair procedures for all major and minor components Overhaul: Complete engine, transmission, and differential overhaul procedures Installation: Component replacement and installation guidelines Technical Depth Depth: Dealer-level technical information, comprehensive rebuild procedures, advanced diagnostics 📊 Manual Specifications File Format Medium: Printed manual Print Quality Quality: High-quality paper with clear diagrams and text Binding Type Binding: Durable binding suitable for workshop use Paper Type Paper: Glossy or semi-gloss paper for durability and clarity of images ⚙️ Engine Specifications Primary Engine Base Engine: 2.3L (140 cu in) Inline-4, OHC, Fuel Injection (EFI) Optional Engine 1: 5.0L (302 cu in) V8, OHV, SEFI (Sequential Electronic Fuel Injection) Optional Engine 2: 2.3L (140 cu in) Turbocharged Inline-4, OHC, EFI (GT Turbo) Performance Base Engine Horsepower: Approximately 105 hp @ 4600 rpm Base Engine Torque: Approximately 130 lb-ft @ 3200 rpm V8 Engine Horsepower: Approximately 225 hp @ 4200 rpm V8 Engine Torque: Approximately 285 lb-ft @ 3000 rpm Turbo Engine Horsepower: Approximately 190 hp @ 4200 rpm Turbo Engine Torque: Approximately 260 lb-ft @ 2800 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) / Sequential Electronic Fuel Injection (SEFI) Fuel Type: Unleaded gasoline 🔧 Transmission Standard Base Transmission: 5-speed Manual (T-5) Optional 1 Optional Transmission 1: 4-speed Automatic (AOD - Automatic Overdrive) Optional 2 Optional Transmission 2: 4-speed Automatic (E4OD - Electronic 4-speed Automatic Overdrive) - primarily with 5.0L V8 Features Clutch Type: Hydraulically actuated single dry plate clutch (manual transmission) Driveshaft: One-piece or two-piece depending on model and transmission Rear Axle: Ford 8.8-inch rear axle with various gear ratios (e.g., 2.73, 3.08, 3.27, 3.55) 📐 Dimensions Exterior Wheelbase: 100.4 inches (2550 mm) Overall Length: 179.6 inches (4562 mm) Overall Width: 69.2 inches (1758 mm) Overall Height: 52.3 inches (1328 mm) Weights Curb Weight: Approx. 2900-3300 lbs (1315-1497 kg) depending on engine and equipment 🛡️ Safety Features Ratings Crash Test Data: Likely NHTSA ratings from the era, specific data may vary by test year and trim Active Features ABS: Anti-lock Braking System (ABS) available as an option, particularly on higher performance models Traction Control: Not typically available in 1990 Passive Features Airbags: Driver's side airbag standard for 1990 Seatbelts: Three-point front seatbelts, lap belts in rear 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player, optional premium sound systems Gauges: Analog gauges for speedometer, tachometer, fuel, engine temp, oil pressure (may vary by trim). Check engine light for EFI systems. Driver Assistance Cruise Control: Optional on most models Connectivity Phone Integration: Not applicable for this era 🔧 Maintenance Service Intervals Oil Change: Every 3,000-5,000 miles or 3-6 months, depending on driving conditions Tune Up: Spark plugs, distributor cap and rotor replacement every 30,000 miles Coolant Flush: Every 30,000-50,000 miles or 2-3 years Transmission Fluid: Check level regularly, fluid and filter change approximately every 30,000-60,000 miles for automatics Fluid Specifications Engine Oil: API SF/SG; SAE 5W-30 or 10W-30 (refer to manual for specific engine and temperature recommendations) Coolant: Ford Premium Engine Coolant (Yellow) or equivalent ethylene glycol-based coolant (50/50 mix with distilled water) Automatic Transmission Fluid: Mercon Automatic Transmission Fluid (ATF) Manual Transmission Fluid: API GL-4; SAE 75W-90 or 80W-90 gear oil Brake Fluid: DOT 3 Hydraulic Brake Fluid Known Issues Fox Body Common Problems: Corrosion (especially in salt-belt regions), aging rubber components (bushings, hoses), fuel pump issues, electrical connector degradation, minor interior trim wear V8 Engine Specific: Potential for head gasket leaks, distributorless ignition system (DIS) module failures, intake manifold gasket leaks 📚 Vehicle History Brand Heritage Ford Legacy: Ford's long history of producing popular performance and personal luxury vehicles Model Evolution Fox Body Era:...