🏷️ Basic Information Identification Make: Porsche Model: 944 Applicable Years: 1982-1991 Codes Chassis Codes: 944 (82-85), 944 (85.5-88), 944 S2 (89-91), 944 Turbo (85-91) 👋 Introduction Market Position Positioning: The Porsche 944 was positioned as a more accessible, yet performance-oriented, sports coupe in Porsche's lineup, blending practicality with the brand's renowned driving dynamics. It competed against a range of European and Japanese sports cars. Competitive Analysis Competitors: Key competitors included the Chevrolet Camaro/Pontiac Firebird, Ford Mustang, BMW 3 Series, Nissan 300ZX, Toyota Supra, and various European GT cars. Key Features Distinguishing Factors: Front-engine, rear-wheel-drive layout (unique for Porsche at the time), excellent weight distribution, powerful inline-four engines (later inline-four with balance shafts and V8 engines in some performance variants), sophisticated transaxle design for optimal balance, and distinctive Porsche build quality and styling. 📋 Manual Details Coverage Areas Covered Models: All Porsche 944 variants produced between 1982 and 1991, including standard 944, 944 Lux, 944 S, 944 Turbo (951), and 944 S2. Page Count Estimated Pages: Hundreds of pages (specific number not provided, but described as extensive). Manual Type Type: Complete Official Full Factory Service Repair Manual Language Language: English Format Format: PDF Download Delivery Delivery Method: Instant download link provided on the checkout page after payment. Requirements Software Requirement: Adobe PDF Reader 📖 Manual Coverage Systems Covered All Systems: General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle. Engine Control: Detailed coverage of engine management systems, including fuel injection (L-Jetronic/Motronic), ignition timing, idle control, and diagnostics. Fuel Injection: In-depth explanations of fuel delivery, injector function, fuel pressure regulation, and troubleshooting specific to the Bosch fuel injection systems used. Electrical System: Comprehensive coverage with detailed wiring diagrams, fuse box layouts, component testing procedures, and common electrical fault diagnosis. Procedures Included Repair Procedures: Step-by-step instructions for complete disassembly and reassembly, detailed substeps, troubleshooting, diagnostics, and repair of all covered systems. Troubleshooting Electrical: Specific sections dedicated to diagnosing and repairing electrical issues, often combined with wiring diagrams for ease of use. Engine Rebuild: Detailed procedures for engine disassembly, inspection, rebuilding, and reassembly, including torque specifications and clearances. Transmission Repair: Instructions for manual and automatic transmission servicing, repair, and adjustment, including clutch replacement and torque converter procedures. Suspension Steering: Guidance on servicing and repairing suspension components (shocks, struts, bushings), wheel alignment, and steering system maintenance. Technical Depth Depth: Professional quality, in-depth coverage suitable for both do-it-yourselfers and experienced mechanics, including detailed illustrations, drawings, photos, and enlarged insets. Illustrations: Hundreds of high-quality photos, detailed drawings, and diagrams that visually guide the user through each repair step. Diagnostic Codes: While not explicitly mentioning OBD codes (as they were nascent or absent in early models), the manual provides systematic diagnostic trees and procedures for identifying faults. 📊 Manual Specifications File Format File Type: PDF Compatibility: Compatible with all PC-based Windows operating systems and Mac. Can be saved to hard drive and burned to CD-ROM. Print Quality Printability: Printable without restriction (entire manual or specific pages). Binding Type Binding: N/A (Digital Download - printable for user binding). Paper Type Paper: N/A (Digital Download). ⚙️ Engine Specifications Primary Engine Engine Type Early: 2.5L Naturally Aspirated Inline-4 (M44/01, M44/04, M44/05) Engine Type Late: 2.5L Turbocharged Inline-4 (M44/51), 2.5L Naturally Aspirated Inline-4 (M44/10, M44/12), 3.0L Naturally Aspirated Inline-4 (M44/40, M44/41 - S2) Engine Design: Inline-four with dual overhead camshafts (DOHC), balance shafts (essential for smoothness in inline-fours), and a front-engine, rear-drive configuration. Performance Horsepower Range: 150 hp to 250 hp (depending on model and year). Torque Range: 170 lb-ft to 260 lb-ft (depending on model and year). Compression Ratio Naturally Aspirated: Typically around 10.2:1 for 2.5L, 10.9:1 for 2.5L (S), and 10.6:1 for 3.0L (S2). Compression Ratio Turbocharged: Typically around 8.0:1 for 944 Turbo (951) to accommodate boost. Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection (depending on year and model). 🔧 Transmission Standard Type Standard: 5-speed Manual Transaxle Optional Type Optional: 3-speed Automatic Transaxle (Tiptronic on some later models). Features Transaxle Layout: Rear-mounted transaxle (engine in front, gearbox in rear) for 50/50 weight distribution. 📐 Dimensions Exterior Length: Approx. 4200-4275 mm (165.4-168.3 in) depending on model year. Width: Approx. 1725-1750 mm (67.9-68.9 in). Height: Approx. 1270-1300 mm (50.0-51.2 in). Weights Curb Weight: Approx. 1180-1370 kg (2600-3020 lbs) depending on model and options. 🛡️ Safety Features Ratings Crash Testing: NHTSA ratings varied by year; often received 4-star ratings for frontal impact in its era. (Specific ratings require consulting period tests). Active Features Braking: 4-wheel disc brakes (standard on all models), ABS was optional on early models and standard on later models, especially Turbo and S2 variants. Passive Features Restraints: 3-point seatbelts, driver and passenger airbags (optional on early models, standard on later...