🏷️ Basic Information Identification Make: Porsche Model: 944 Turbo Model Code: 944S2 Turbo / Turbo S Production Years Covered: 1987, 1988, 1989, 1990, 1991 Chassis Code: 951 (Turbo) 👋 Introduction Market Position Market Position: The Porsche 944 Turbo was positioned as a high-performance sports coupe, offering a blend of luxury, handling, and turbocharged power, competing with cars like the Nissan 300ZX Turbo and Chevrolet Corvette. Competitive Analysis Competitive Analysis: It offered superior handling and a more refined driving experience compared to many contemporaries, leveraging Porsche's engineering prowess. Key Features Vehicle Key Features Vehicle: Front-engine, rear-wheel-drive layout, 2.5-liter turbocharged inline-four engine, transaxle design for optimal weight distribution, aerodynamic styling, and a driver-focused interior. Manual Advantage Manual Advantage: The electronic PDF format offers superior usability through zoom capabilities and digital searchability, making it an invaluable resource for maintenance and repair. 📋 Manual Details Coverage Areas General Information: Included Specifications: Included Technical Features And Description: Included Rigging Information: Included Troubleshooting: Included Electrical System: Included Fuel System: Included Power Unit Engine: Included Lower Unit Transmission Drivetrain: Included Bracket Unit Suspension Steering Brakes: Included Maintenance: Included Index: Included Appendix: Included Page Count Page Count: Not Specified (Electronic) Manual Type Manual Type: Service Repair Manual (Factory Original Electronic) Language Language: English Format File Format: PDF Compatibility: All Versions of Windows & Mac Reader Requirement: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for engine disassembly, inspection, repair, and reassembly, including torque specifications and tolerances. Engine Management Fuel Injection: Comprehensive coverage of the Bosch Motronic DME system, fuel injectors, fuel pump, fuel pressure regulator, and emissions control. Turbocharger System: In-depth information on the turbocharger unit, intercooler, wastegate operation, boost pressure control, and related plumbing. Cooling System: Details on radiator, fan operation, coolant circulation, thermostat, and expansion tank maintenance and repair. Exhaust System: Information on exhaust manifold, catalytic converter, muffler, and oxygen sensor replacement and diagnosis. Transmission Manual: Procedures for clutch operation, gearbox inspection, repair, and fluid changes (e.g., Getrag G31). Drivetrain Axles: Coverage of drive shafts, CV joints, and differential inspection and maintenance. Suspension Front: Detailed procedures for MacPherson strut assembly, control arms, anti-roll bar, and wheel bearing replacement. Suspension Rear: In-depth coverage of trailing arm suspension, shock absorbers, springs, and rear axle components. Steering System: Information on power steering rack, pump, hoses, and alignment specifications. Braking System: Procedures for front and rear disc brakes, ABS system, brake fluid replacement, and caliper servicing. Electrical System Wiring Diagrams: Comprehensive wiring schematics for all vehicle systems, including engine, lighting, accessories, and power distribution. Instrumentation And Gauges: Troubleshooting and repair of speedometer, tachometer, fuel gauge, oil pressure gauge, and warning lights. Lighting System: Headlights, taillights, interior lighting, and electrical component diagnosis. Climate Control System: Air conditioning and heating system service, refrigerant handling, and component replacement. Body And Chassis: Information on body panel removal and installation, door mechanisms, and structural components. Interior Trim: Details on removing and installing interior panels, seats, and dashboard components. Procedures Included Preventative Maintenance: Scheduled maintenance tasks, fluid checks, filter replacements, and component inspections. Diagnostic Troubleshooting: Step-by-step guides for identifying and resolving common and complex vehicle issues, including fault codes where applicable. Component Removal Installation: Detailed instructions for removing and reinstalling all major and minor mechanical and electrical components. Engine Rebuild: Comprehensive guidance for a complete engine overhaul, including machining specifications. Transmission Overhaul: Detailed instructions for the disassembly, inspection, and reassembly of the gearbox. Brake System Service: Procedures for pad and rotor replacement, caliper rebuilding, and bleeding the brake system. Electrical Troubleshooting Wiring Guides: Methodologies for tracing electrical faults using wiring diagrams and testing components. Suspension Alignment: Specifications and procedures for wheel alignment adjustments. Technical Depth Depth Of Information: Factory-level technical detail, suitable for both DIY enthusiasts and professional mechanics. Diagnostic Level: Advanced diagnostic procedures, including testing of sensors, actuators, and control modules. Repair Level: Covers everything from routine maintenance to major component overhauls and specialized repairs. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution digital reproduction, allowing for clear zoom and detail visibility. Binding Type Binding Type: Digital (PDF), not applicable for physical binding. Paper Type Paper Type: Digital (PDF), not applicable for physical paper type. Searchability Searchability: Searchable PDF text allows for quick navigation to specific topics. ⚙️ Engine Specifications Primary Engine Engine Type: Inline-four, turbocharged Displacement: 2.5 liters (2479 cc) Bore X Stroke: 104.0 mm x 71.0 mm Compression Ratio: 8.0:1 (approximate, varies by market and year) Engine Code Family: M44/51 (for 1987-1988), M44/52 (for 1989-1991 Turbo S) Valvetrain: Single Overhead Camshaft (SOHC), 8 valves Performance Horsepower: 217 hp @ 5000 rpm (standard Turbo), 247 hp @ 5500 rpm (Turbo S) Torque: 245 lb-ft @ 3500 rpm (standard Turbo), 258 lb-ft @ 4500 rpm (Turbo S) Fuel System Fuel Injection: Bosch Motronic DME (Digital Engine Electronics) Fuel Type: Premium Unleaded Gasoline (91+ octane) Turbocharger Turbocharger...