1985 Porsche 944 Service and Repair Manual

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Fits the 1985 944 — Base Coupe 2-Door ·
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1985 Porsche 944 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Base Coupe 2-Door

Engines covered

  • 2.5L 2475CC l4 GAS SOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #85V03900009/04/1985Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

FUEL HOSE MAY BE DAMAGED DUE TO TOO MUCH PRESSURE IN CRIMPING THE HOSE END FITTING.

Remedy

HOSES WILL BE MODIFIED BY CUTTING OFF THE CRIMPED END FITTING AND REPLACING IT WITH A NIPPLE

NHTSA #85V02300001/03/1985Component: VEHICLE SPEED CONTROL:LINKAGES

METAL BUSHINGS FOR THE CRUISE CONTROL LINKAGE ARE SUBJECT TO CORROSION DUE TO WEATHER CONDITIONS. ALSO, THERE IS NOT ENOUGH CLEARANCE BETWEEN THE BUSHINGS AND THE SHAFT; AND THE LINKAGE

Remedy

REPLACE THE METAL BUSHINGS WITH THE PLASTIC VERSION.

TSB #10246417

Information for PIWIS tester update 42.300.050 & .052

TSB #10246387

Instructions on manufactures certificate for approved Porsche A40 engine oils

TSB #10246384

Instructions on manufacturers certificate for approved C20 engine oils

TSB #10246385

Instructions on manufactures certificate for approved Porsche C30 engine oils

TSB #10246372

Information for PIWIS tester update 42.300.035

TSB #10246374

Information for PIWIS tester update 42.300.040 & .041

TSB #10246369

Information for PIWIS tester update 42.300.030 - .032

TSB #10246366

Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY

Showing the 8 most recent of 72 technical service bulletins on file with NHTSA.

20130226Component: ENGINEFire reported

I WAS DRIVING ALONG IN MY RECENTLY PURCHASED PORSCHE 944, AND SUDDENLY THE CAR LOST ALL POWER AND THE ENGINE COMPARTMENT BURST INTO FLAMES WITHOUT ANY WARNING. NEEDLESS TO SAY, THE ENTIRE UNDERHOOD AR

20151203Component: STEERING

DURING TURNING AT HIGHWAY SPEEDS THE STEERING WILL SOMETIMES "LOCK" OR "JAM". IT HAS BEEN DIAGNOSED AS A FAILED STEERING COUPLER, MANUFACTURER'S PART NUMBER 944 347 027 01 - DRIVE SHAFT. I HAVE BEE

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