The 2004 Neon, part of the second generation (PG) platform, is a compact car offered in both 2-door coupe and 4-door sedan body styles. Known for its affordability and decent fuel economy, it appealed to budget-conscious buyers and young drivers. The Neon features a 2.0-liter inline 4-cylinder engine, producing approximately 132 horsepower, and is available with either a 5-speed manual or a 4-speed automatic transmission. Its sporty handling for the class and a comfortable ride contribute to its appeal, making it a practical choice for daily commuting and small families. This workshop service repair manual provides comprehensive factory-level information for the 2004 Neon, covering all styles and trims. It details essential maintenance procedures, including fluid changes and component replacements, along with in-depth troubleshooting guidance for various systems. Mechanics and owners will find detailed explanations of engine mechanicals, fuel and cooling systems, brakes, suspension, steering, drivetrain, and electrical components. The manual also includes diagnostic procedures, repair instructions for component disassembly and reassembly, and technical specifications, enabling effective maintenance and repair for those seeking to keep their vehicle in optimal condition. 🏷️ Basic Information Identification Make: Chrysler/Dodge Model: Neon Year: 2004 Codes Platform: PG (Second Generation Neon) Vin Code: Sixth digit indicates model year (4 for 2004) 👋 Introduction Market Position Segment: Compact Car Target Audience: Budget-conscious buyers, young drivers, small families Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Ford Focus, Chevrolet Cavalier Key Features Manual Value Proposition: Comprehensive factory service information for DIY repairs and professional diagnostics, cost-effective alternative to dealership service. Vehicle Appeal: Affordability, decent fuel economy, available in sedan and coupe body styles, sporty handling for its class. 📋 Manual Details Coverage Areas Coverage: All Styles, All Trims Page Count Estimated Pages: Hundreds of pages (specific number not provided, but implied comprehensive) Manual Type Type: Workshop Service Repair Manual (Factory Service Manual) Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine Mechanical, Engine Performance, Fuel System, Cooling System, Exhaust System, Ignition System, Emissions Control Transmission: Manual Transmission, Automatic Transmission (details not specified, but implied comprehensive) Drivetrain: Drive Axles, Clutch (if applicable), Differential Brakes: Brake System, ABS (if applicable), Parking Brake Suspension Steering: Front Suspension, Rear Suspension, Steering System Body Chassis: Body Structure, Exterior and Interior Trim, Doors, Windows, Seats, Bumpers Electrical: Charging System, Starting System, Lighting System, Instrumentation, Wiper/Washer System, Audio System, Body Electrical Components, Powertrain Control Module (PCM), Powertrain Diagnostics HVAC: Heating, Ventilation, and Air Conditioning (HVAC) System Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Spark Plug Replacement, Belt Inspection/Replacement Troubleshooting: Diagnostic Procedures, Symptom-Based Troubleshooting, Electrical System Troubleshooting, Wiring Diagrams Repair: Component Disassembly and Reassembly, Component Replacement, Major Component Overhaul Diagnostics: Diagnostic Trouble Codes (DTCs), On-Board Diagnostics (OBD-II), Scan Tool Usage Technical Depth Depth: Complete Disassembly and Reassembly, In-depth Repair Procedures, Detailed Illustrations and Photos Audience: Do-it-yourselfer and Experienced Mechanic 📊 Manual Specifications File Format Format: PDF Compatibility: All PC based Windows Operating Systems and Mac Print Quality Printability: Printable without restriction, individual pages or entire manual Binding Type Binding: Digital Download (Printable) Paper Type Paper Type: Not Applicable (Digital Download) Requirements Software: Adobe PDF Reader ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-Cylinder Displacement: 2.0 L (1996 cc) Engine Codes: A57 (2.0L SOHC), ECC (2.0L DOHC - less common for 2004 models but possible) Performance Horsepower Sohc: Approx. 132 hp @ 6000 rpm Torque Sohc: Approx. 130 lb-ft @ 4250 rpm Fuel System Fuel Delivery: Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded gasoline Engine Management ECU Type: Powertrain Control Module (PCM) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transmission Optional Transmission Type: 4-Speed Automatic Transmission Features Automatic Features: Electronically controlled, torque converter lock-up Fluid Specs Manual Transmission Fluid: Refer to manual for specific API GL-4 or GL-5 specification and viscosity (e.g., SAE 75W-90 or 75W-85) Automatic Transmission Fluid: Chrysler ATF+4 (MS-9602) 📐 Dimensions Exterior Body Styles: 2-Door Coupe, 4-Door Sedan Weights Curb Weight Approx: 2700-2900 lbs (varies by trim and body style) 🛡️ Safety Features Ratings NHTSA Front Driver: Good (for 2000-2002 models, 2004 likely similar) NHTSA Front Passenger: Good (for 2000-2002 models, 2004 likely similar) Active Features ABS: Available on some trims/packages Passive Features Airbags: Driver and Passenger Frontal Airbags, Available Side Airbags (on select trims) Seatbelts: 3-point front and rear seatbelts, pretensioners 💡 Technology Features Infotainment Audio System: AM/FM stereo with CD player (optional), cassette player (optional on some trims). Driver Assistance Cruise Control: Available on most trims Connectivity Power Accessories: Power windows, power door locks (available on higher trims) 🔧 Maintenance Service Intervals Oil Change: Every 3,000-5,000 miles or 3-6 months, or as per owner's manual recommendation based on driving conditions. Transmission Fluid Change: Automatic: Every 30,000-60,000 miles. Manual: Inspect as needed, fluid replacement typically every 60,000-100,000 miles. Coolant Flush: Every 30,000-50,000 miles or 2-3 years. Spark Plugs: Approximately 60,000-100,000 miles (depending on plug type...