🏷️ Basic Information Identification Make: Porsche Model: 944 Model Variant: Turbo (951) Production Years Covered: 1982-1991 Engine Options Covered: Turbocharged 2.5L Inline-4 Codes Chassis Code: 944 Turbo Chassis Code: 951 👋 Introduction Market Position Positioning: Essential diagnostic and repair resource for owners and technicians of the Porsche 944 Turbo (951). Competitive Analysis Comparison To Aftermarket: Superior to generic aftermarket manuals due to factory-specific data, procedures, and diagrams. Key Features Feature 1: Factory-accurate information directly from Porsche. Feature 2: Comprehensive coverage across the entire 1982-1991 model range, with emphasis on the Turbo variant. Feature 3: Indispensable for diagnosing complex issues unique to the 951's turbocharged engine and associated systems. Feature 4: Facilitates accurate maintenance and repairs, preserving the integrity and performance of the classic 944. 📋 Manual Details Coverage Areas Manual Coverage Scope: Comprehensive service, repair, and workshop procedures Page Count Estimated Page Count: Refer to specific product listing for exact count; typically extensive for factory manuals. Manual Type Type: Factory Service Manual / Repair Manual / Workshop Manual Language Language: English Format Format: Digital (Instant Download) Compatibility: Windows XP/Vista/Seven, Mac, Linux 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed rebuild, timing, valve train, piston/ring replacement, cylinder head service. Engine Lubrication System: Oil pump, oil cooler, oil filter housing, lubrication passages, oil pressure diagnostics. Engine Cooling System: Radiator, water pump, thermostat, cooling fan, coolant passages, pressure testing. Fuel System: Fuel injection system (Bosch Motronic), fuel pump, fuel pressure regulator, injectors, fuel lines, tank. Exhaust System: Exhaust manifolds, catalytic converter, muffler, exhaust pipes, oxygen sensor. Accelerator Control System: Throttle body, throttle linkage, cruise control operation. Clutch: Clutch disc, pressure plate, release bearing, slave cylinder, master cylinder, bleeding procedures. Manual Transmission: G50 gearbox (later models) or original transmission, gear ratios, internal components, rebuild procedures. Automatic Transmission: Rebuild, adjustments, fluid service, troubleshooting for available automatic variants. Propeller Shaft: Driveshaft U-joints, balancing, removal and installation. Rear Final Drive: Differential, axle shafts, seals, bearings, lubrication. Front Axle: Axle shafts, CV joints, hub assemblies, bearings. Rear Axle: Semi-trailing arm design, hub carriers, wheel bearings, seals. Front Suspension: Control arms, ball joints, tie rods, anti-roll bar, shock absorbers, springs, alignment specifications. Rear Suspension: Semi-trailing arms, bushings, shock absorbers, springs, alignment specifications. Wheels And Tires: Wheel bolt patterns, torque specifications, tire pressure recommendations, wheel bearing service. Brake System: Brake discs, calipers, pads, master cylinder, ABS system (if equipped), bleeding procedures, brake fluid specifications. Steering System: Power steering pump, rack and pinion, tie rods, steering column, alignment. Body: Body panels, doors, hood, trunk, bumpers, glass, trim, corrosion protection. Air Conditioner: Components, refrigerant, system service, troubleshooting. Electrical System: Wiring diagrams, fuse box layouts, starter, alternator, ignition system, lighting, diagnostics. Maintenance: Routine service intervals, fluid checks, filter replacements, tune-up procedures. Diagnostic Troubleshooting: Systematic fault finding, error codes, common problems and solutions for all covered systems. Procedures Included Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly. Transmission Rebuild: Manual and automatic transmission internal component repair and replacement. Suspension And Steering Repair: Bushings, ball joints, tie rods, alignment adjustments, power steering system service. Brake System Overhaul: Calipers, master cylinder, lines, bleeding, ABS diagnostics. Electrical Diagnostics: Wiring harness repair, component testing, ECU troubleshooting, sensor calibration. Fuel System Cleaning And Testing: Injector cleaning, fuel pressure testing, pump diagnosis. Body Panel Replacement: Procedures for replacing fenders, doors, hoods, etc. Maintenance Scheduling: Factory-recommended service intervals for various mileage and time-based checks. Technical Depth Depth: Factory-level detail, suitable for professional mechanics and advanced DIY enthusiasts. Diagrams And Illustrations: Extremely detailed technical diagrams, exploded views, and schematics. Diagnostic Procedures: Comprehensive diagnostic routines, symptom-based troubleshooting, and specific test procedures. Torque Specifications: Precise torque values for all fasteners and critical components. Special Tools: Identification and usage of specialized Porsche tools required for specific repairs. 📊 Manual Specifications File Format Digital Format: Likely PDF or similar document format. Print Quality Digital Resolution: High-resolution, suitable for clear viewing and potential printing of individual pages. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 2.5L Inline-4, turbocharged Engine Code Turbo: M44.50, M44.51, M44.52 Performance Horsepower Turbo: Approximately 220-250 hp (varies by market and specific model year). Torque Turbo: Approximately 245-270 lb-ft (varies by market and specific model year). Fuel System Fuel Delivery: Bosch Motronic electronic fuel injection and ignition management. Turbocharger: AiResearch (Garrett) T3 turbocharger with intercooler. 🔧 Transmission Standard Standard Transmission Type: 5-speed manual (e.g., G50 on later models, or original gearbox) Optional Optional Transmission Type: 3-speed automatic (e.g., automatic transaxle) Features Transmission Layout: Transaxle design (engine in front, gearbox/differential in rear). 📐 Dimensions Exterior Wheelbase: Approximately 94.5 inches (2400 mm). Overall Length: Approximately 168.0 inches (4267 mm). Weights Curb Weight Turbo: Approximately 2900-3100 lbs (1315-1406 kg). 🛡️ Safety Features Ratings Crash Test Data: Refer to specific NHTSA or Euro NCAP data for the model years; generally good for its era....