🏷️ Basic Information Identification Make: Plymouth Model: Conquest Year: 1988 Generation Model Generation: Second Generation Codes Vin Prefix: JS (North America) 👋 Introduction Market Position Target Audience: Owners of 1988 Plymouth Conquest with basic mechanical skills, independent auto service professionals, and enthusiasts seeking in-depth vehicle knowledge. Competitive Analysis Differentiation From Generic Guides: Vehicle-specific, factory-level information; not generic repair advice. Provides exact procedures and specifications used by authorized technicians. Key Features Ease Of Use: Accurate, clear, and concise text combined with illustrations and diagrams designed for easy comprehension by users with basic mechanical knowledge. Cost Savings: Enables owners to perform routine maintenance and repairs, potentially saving hundreds or thousands of dollars in labor costs. Manufacturer Origin: Written by the manufacturers (based on original factory service manuals). 📋 Manual Details Coverage Areas Manual Coverage Summary: Comprehensive service, repair, and diagnostic information for the 1988 Plymouth Conquest, covering all major mechanical, electrical, and body systems. Page Count Estimated Page Count: Likely 800-1200 pages (typical for a comprehensive factory service manual of this era) Manual Type Manual Format Type: Workshop Service and Repair Manual Language Language: English Format Digital Format: PDF Digital Features: Searchable PDF for quick information retrieval. 📖 Manual Coverage Systems Covered Powertrain Systems: Engine mechanical, engine electrical, emission control, fuel system, clutch system, manual transaxle system, automatic transaxle system, driveshaft and axle. Chassis And Body Systems: Suspension system, steering system, restraint system, brake system, body (interior and exterior), body electrical system, heating, ventilation, and air conditioning (HVAC). Wiring Schematics: Detailed wiring diagrams for all electrical systems, including engine controls, lighting, audio, HVAC, and power accessories. Procedures Included Repair Procedures: Step-by-step repair instructions for all major vehicle systems, including disassembly, component overhaul, reassembly, and adjustments. Maintenance Procedures: Scheduled maintenance tasks, fluid changes, filter replacements, tune-up procedures, and lubrication. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) interpretation where applicable, and component testing procedures. Troubleshooting Approach: Systematic troubleshooting flowcharts and symptom-to-cause diagnostic trees. Technical Depth Technical Expertise Level: Professional mechanic level, suitable for experienced DIY enthusiasts and independent repair shops. Covers detailed specifications and procedures comparable to dealership service departments. Documentation Types: Includes diagrams, illustrations, wiring schematics, and technical specifications. 📊 Manual Specifications File Format Digital File Type: PDF (Portable Document Format) Print Quality Printability: Fully printable, allowing users to print individual pages or sections as needed. Binding Type Original Binding Type: Likely a professional hard or soft cover binding (for original printed versions) Paper Type Original Paper Type: High-quality paper with durable coatings to resist shop fluids (for original printed versions) ⚙️ Engine Specifications Primary Engine Engine Type: Turbocharged 4-cylinder (2.6L Astron SOHC) Performance Horsepower Estimated: Approximately 145 hp @ 5,000 rpm (varies by specific market tune) Torque Estimated: Approximately 195 lb-ft @ 3,000 rpm (varies by specific market tune) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with a Turbocharger Engine Mechanical System Bore X Stroke: 84.0 mm x 116.0 mm (standard for 2.6L) Compression Ratio: Approximately 8.4:1 (for turbocharged variant) Engine Family: Mitsubishi 4G6x series (Astron) Emission Control System Emission Controls: Catalytic converter, exhaust gas recirculation (EGR), secondary air injection (if equipped). 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Transaxle Optional Transmission Type Optional: 3-speed Automatic Transaxle Features Transaxle Layout: Front-wheel drive (FWD) 📐 Dimensions Exterior Wheelbase: Approximately 97.2 inches (2469 mm) Overall Length: Approximately 169.1 inches (4300 mm) Weights Curb Weight Estimated: Around 2,800 - 3,000 lbs (1270 - 1360 kg), depending on transmission and equipment. 🛡️ Safety Features Ratings Safety Standards Era: Compliant with US Federal Motor Vehicle Safety Standards (FMVSS) for 1988 model year. Active Features Braking System: Front: Ventilated Discs; Rear: Drums (standard), potentially Rear Discs on higher trims. Passive Features Restraint System: Seat belts (manual lap and shoulder belts), potential for optional airbags on later models but unlikely for 1988. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo cassette player, possibly with graphic equalizer and premium speaker options. Driver Assistance Cruise Control: Optional, typically electronically controlled. Connectivity Diagnostic Ports: OBD-I diagnostic connector, primarily for basic sensor data and trouble codes, accessible through specified procedures. 🔧 Maintenance Service Intervals Oil Change Interval Estimated: Typically every 3,000-5,000 miles or 3-6 months, depending on oil type and driving conditions. Timing Belt Replacement: Recommended every 60,000 miles or 5 years, critical for interference engine design. Fluid Specifications Engine Oil Type Estimated: API SG/SH rated 10W-30 or 10W-40, check specific manual for exact viscosity and capacity (approx. 4.5 quarts). Transmission Fluid Type Manual: GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90). Transmission Fluid Type Automatic: Dexron II or equivalent automatic transmission fluid (ATF). Coolant Type: Ethylene glycol-based antifreeze (50/50 mix with distilled water). Brake Fluid Type: DOT 3 or DOT 4. Known Issues Common Reliability Concerns: Turbocharger reliability (depending on maintenance history), electrical component degradation, rust, and potential for head gasket issues if overheated. Tune Up...