944 L4-2479cc 2.5L (1984): Engine, Cooling and Exhaust
Also for this vehicle: 944 L4-2681cc 2.7L (1989), 944 S L4-2479cc 2.5L DOHC (1987), 944 S2 Cabriolet L4-2990cc 3.0L DOHC (1991), 944 S2 Coupe L4-2990cc 3.0L DOHC (1990), 944 Turbo L4-2479cc 2.5L SOHC Turbo (1988).
Diagnostics
Maintenance
Engine
Transmission
Brakes
Electrical
Steering & suspension
Heating & A/C
Body & interior
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Engine342 pages
Camshaft, Lifters and Push Rods2 pages
Cylinder Block Assembly36 pages
- Balance Shaft › Component Information › Specifications › Shaft & Bore Dimensions2
Balance Shaft Belt › Component Information › Technical Service Bulletins12 pages
- Customer Interest: › 18504 › Feb › 85 › Rear Drive Belt - Oscillation or Damage2
All Technical Service Bulletins for Balance Shaft Belt:6 pages
All Other Service Bulletins for Balance Shaft Belt:4 pages
Balance Shaft Gear › Component Information5 pages
Connecting Rod, Engine › Component Information6 pages
- Coolant Drain Plug, Cylinder Block › Component Information › Specifications
- Crankshaft Main Bearing › Component Information › Technical Service Bulletins › Engine Main Bearing - Revised Torque
- Crankshaft, Engine › Component Information › Specifications › Crankshaft Main Bearing Torque23
- Harmonic Balancer - Crankshaft Pulley › Component Information › Specifications
- Piston, Engine › Component Information › Specifications › Piston Dimensions234
- Piston Ring, Engine › Component Information › Specifications
Cylinder Head Assembly11 pages
- Valve Clearance › System Information › System Diagnosis2
- Fuel Pressure Release › System Information › Service Precautions
- Camshaft Housing › Component Information › Service and Repair23
- Valve Guide › Component Information › Specifications2
- Valve Seat › Component Information › Specifications
- Valve Spring › Component Information › Specifications
- Valve, Intake/Exhaust › Component Information › Specifications
Drive Belts, Mounts, Brackets and Accessories23 pages
Drive Belt › Component Information4 pages
- Engine Accessory Bracket › Component Information › Specifications
Engine Mount › Component Information › Technical Service Bulletins18 pages
All Technical Service Bulletins for Engine Mount:9 pages
- All Other Service Bulletins for Engine Mount: › 19011 › Nov › 90 › Engine Mount - Revised, Installation and Checking23
Engine Lubrication122 pages
Engine Oil › Component Information76 pages
Technical Service Bulletins74 pages
All Technical Service Bulletins for Engine Oil:37 pages
- 137-08 › Mar › 09 › Engine - Approved Porsche A40 Engine Oils2345678910
- 102/07 › Apr › 07 › Engine - Approved Engine Oils Overview23456789
- 11/05 › Jul › 05 › Engine - Porsche Approved Oils2345
- 0301 › May › 03 › Engine - Approved Engine Oils2345678
- 19207 › Apr › 92 › Engine Lubrication - Oils That Minimize Carbon Build-Up2
- 19105 › May › 91 › Engine - Oil In the Cooling System2
- 18905 › May › 89 › Engine - Motor Oils That Minimize Carbon Build-Up
- Customer Interest: › 19105 › May › 91 › Engine - Oil In the Cooling System2
All Other Service Bulletins for Engine Oil:35 pages
- 137-08 › Mar › 09 › Engine - Approved Porsche A40 Engine Oils2345678910
- 102/07 › Apr › 07 › Engine - Approved Engine Oils Overview23456789
- 11/05 › Jul › 05 › Engine - Porsche Approved Oils2345
- 0301 › May › 03 › Engine - Approved Engine Oils2345678
- 19207 › Apr › 92 › Engine Lubrication - Oils That Minimize Carbon Build-Up2
- 18905 › May › 89 › Engine - Motor Oils That Minimize Carbon Build-Up
- Specifications › Capacity Specifications2
Oil Cooler, Engine › Component Information › Technical Service Bulletins22 pages
All Technical Service Bulletins for Oil Cooler:11 pages
All Other Service Bulletins for Oil Cooler:9 pages
- Oil Filter, Engine › Component Information › Service and Repair2
Oil Line, Engine › Component Information › Technical Service Bulletins4 pages
Oil Pan, Engine › Component Information10 pages
Technical Service Bulletins4 pages
All Technical Service Bulletins for Oil Pan:2 pages
- Customer Interest: › 178402 › Apr › 84 › Engine - Low or No Oil Pressure On Cold Start
- All Other Service Bulletins for Oil Pan: › 19005 › Jan › 90 › Oil Pan - Sealing
- Service and Repair › Oil Pan23456
- Oil Pressure Warning Lamp/Indicator › Component Information › Diagrams › Diagram Information and Instructions234
- Oil Pump, Engine › Oil Pressure Regulator Valve › Component Information › Technical Service Bulletins › Oil Pressure Relief Valve - Identification & Application234
- Intake Manifold › Component Information › Specifications
- Lamps and Indicators - Engine › Oil Pressure Warning Lamp/Indicator › Component Information › Diagrams › Diagram Information and Instructions234
Timing Components90 pages
- Balance Shaft › Component Information › Specifications › Shaft & Bore Dimensions2
Balance Shaft Belt › Component Information › Technical Service Bulletins12 pages
All Technical Service Bulletins for Balance Shaft Belt:6 pages
- Customer Interest: › 18504 › Feb › 85 › Rear Drive Belt - Oscillation or Damage2
All Other Service Bulletins for Balance Shaft Belt:4 pages
Balance Shaft Gear › Component Information5 pages
Timing Belt › Component Information51 pages
Technical Service Bulletins30 pages
All Technical Service Bulletins for Timing Belt:15 pages
- 19204 › Mar › 92 › Toothed Engine Belts - Storage, Packing and Handling
- 19016 › Jun › 90 › Camshaft Drive Belts - Recommended Usage
- 18901 › Jan › 89 › Camshaft Drive - Replaced Parts Upon Belt Failure
- 18701 › Jan › 87 › Cam Belt Tensioner Nut - Torque Specification
- 18525 › Sep › 85 › Camshaft Drive Belt (Turbo) - Revised Part & Adjustment2
- 18502 › Apr › 85 › Engine - Modified Components23
- 18504 › Feb › 85 › Rear Drive Belt - Oscillation or Damage2
- 158404 › Aug › 84 › Camshaft Spur Belt - Proper Tension Adjustment
- 158403 › Aug › 84 › Spur Belt - Rubbing on Belt Cover
- TOOLS021584 › Feb › 84 › Tools - Calibration Gauge for Special Tool 92012
All Other Service Bulletins for Timing Belt:11 pages
- 19204 › Mar › 92 › Toothed Engine Belts - Storage, Packing and Handling
- 19016 › Jun › 90 › Camshaft Drive Belts - Recommended Usage
- 18701 › Jan › 87 › Cam Belt Tensioner Nut - Torque Specification
- 18525 › Sep › 85 › Camshaft Drive Belt (Turbo) - Revised Part & Adjustment2
- 18502 › Apr › 85 › Engine - Modified Components23
- 158404 › Aug › 84 › Camshaft Spur Belt - Proper Tension Adjustment
- TOOLS021584 › Feb › 84 › Tools - Calibration Gauge for Special Tool 92012
- Testing and Inspection › Initial Inspection and Diagnostic Overview234
- Service and Repair › Initial Checks23456
- Fundamentals and Basics › General Information234567891011
Timing Belt Tensioner › Component Information › Technical Service Bulletins8 pages
All Technical Service Bulletins for Timing Belt Tensioner:4 pages
- Customer Interest: › 18901 › Jan › 89 › Camshaft Drive - Replaced Parts Upon Belt Failure
All Other Service Bulletins for Timing Belt Tensioner:3 pages
Timing Cover › Component Information › Technical Service Bulletins12 pages
Tune-up and Engine Performance Checks18 pages
- Fuel Pressure › System Information › Specifications
- Air/Fuel Mixture › System Information › Technical Service Bulletins › CO Sample Pipe - Material and Mounting Change2
- Idle Speed › System Information › Specifications23
- Air Cleaner Housing › Component Information › Locations
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions
- Firing Order › Component Information › Specifications
- Distributor, Ignition › Distributor Cap › Component Information › Service and Repair
- Spark Plug › Component Information › Technical Service Bulletins › Spark Plugs - Revised Plugs and Tightening Torque234
- Valve Clearance › System Information › System Diagnosis2
Water Pump › Component Information23 pages
Technical Service Bulletins12 pages
All Technical Service Bulletins for Water Pump:6 pages
- Customer Interest: › 19110 › Jul › 91 › Coolant Pump - Leaks
- All Other Service Bulletins for Water Pump: › 18713 › Jun › 87 › Coolant Pump - Installing New Type2345
- Testing and Inspection › Verifying Water Pump Problem2345
- Fundamentals and Basics › Initial Preparations23456
Cooling System100 pages
- Air Bleeder Screw, Coolant › Component Information › Specifications
Coolant › Component Information › Technical Service Bulletins8 pages
All Technical Service Bulletins for Coolant:4 pages
- Customer Interest: › 18720 › Sep › 87 › Radiator - Plugged Up
All Other Service Bulletins for Coolant:3 pages
- Coolant Drain Plug, Cylinder Block › Component Information › Specifications
Radiator Cooling Fan17 pages
Radiator Cooling Fan Motor › Component Information5 pages
- Radiator Cooling Fan Motor Relay › Component Information › Diagrams › Diagram Information and Instructions234
Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Technical Service Bulletins6 pages
- Customer Interest: › 18903 › Jan › 89 › Engine - High Temperature Gauge Readings
All Technical Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:3 pages
All Other Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:2 pages
Fan Blade › Component Information › Technical Service Bulletins2 pages
Engine - Coolant Temperature Sensor/Switch12 pages
- Coolant Temperature Sensor / Switch HVAC › Component Information › Diagrams › Diagram Information and Instructions234
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2
Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Technical Service Bulletins6 pages
- Customer Interest: › 18903 › Jan › 89 › Engine - High Temperature Gauge Readings
All Technical Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:3 pages
All Other Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:2 pages
- Heater Core › Component Information › Service and Repair
- Lamps and Indicators - Cooling System › Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions234
Radiator › Component Information › Technical Service Bulletins10 pages
- Radiator Cap › Component Information › Specifications
- Relays and Modules - Cooling System › Radiator Cooling Fan Motor Relay › Component Information › Diagrams › Diagram Information and Instructions234
Sensors and Switches - Cooling System › Engine - Coolant Temperature Sensor/Switch12 pages
- Coolant Temperature Sensor / Switch HVAC › Component Information › Diagrams › Diagram Information and Instructions234
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2
Radiator Cooling Fan Temperature Sensor / Switch › Component Information › Technical Service Bulletins6 pages
All Technical Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:3 pages
- Customer Interest: › 18903 › Jan › 89 › Engine - High Temperature Gauge Readings
All Other Service Bulletins for Radiator Cooling Fan Temperature Sensor / Switch:2 pages
- Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions234
- Thermostat, Engine Cooling › Component Information › Specifications2
Water Pump › Component Information23 pages
Technical Service Bulletins12 pages
- Customer Interest: › 19110 › Jul › 91 › Coolant Pump - Leaks
All Technical Service Bulletins for Water Pump:6 pages
- All Other Service Bulletins for Water Pump: › 18713 › Jun › 87 › Coolant Pump - Installing New Type2345
- Testing and Inspection › Verifying Water Pump Problem2345
- Fundamentals and Basics › Initial Preparations23456