Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Customer Interest
- Labor/Parts Updates
- Superceded Bulletins
- All Technical Service Bulletins
- Drivetrain - Drive Shaft Grease Incorrectly Labeled
- Vehicle - Use Only Approved Parts For Collision Repairs
- 18801 - 02/12/88
- Tools - Quick Scope Plus
- Tools - Auto Scopemeter & Engine Analyzer
- Tools - Challenger 2 Vehicle Lift
- Technical Information (Advanced) - 23rd Supplement
- Overview
- 928 M.Y. 1985/86 Flywheel/Ignition Timing-Performance Problems
- 924S, 944, 944S M.Y. 1988 Crankcase Ventilation Heater
- 928 S4 M.Y. 1988 Engine Oil Level Checking System -- Modified
- 944 Engine Performance - to Determine Cause of Problem
- 928/928 S4 Ignition Trigger Control Heat Conducting Paste
- 911 Turbo M.Y. 1986 Ignition Delay Relay - Modified
- 911 Turbo M.Y. 1986 Acceleration/Enrichment Relay - Modified
- 924 Turbo M.Y. '81/'82 Ignition Control Unit - Pressure Line
- 911 Carreara M.Y. 1987 DME Control Unit Modified
- 911 Turbo M.Y. 1987 Acceleration - Enrichment Relay - Modified
- 944S, 944T M.Y. 1988 DME Control Unit: Modified
- 944S, 944T Knock Sensor - Modified
- 928 S4 M.Y. '87 - '89 Battery - Modified
- 928 S4 M.Y. '89 TDC Sending Unit - Deleted
- 911C2/4 *Reduced Engine Broking Effect
- 911 Carrera M.Y. 1984 Trans Mainshaft Bearing Loose
- 944 Transmission/Drive Train Noise
- Carrera 2/4 *Additional Shifter Boot Installed
- 911 Carrera M.Y. 1987 Rear Stabilize BAR - Modified
- 944, 944S 944T M.Y. 1988 With M-593 ABS - Modified
- 911 Carrera 911 Turbo M.Y. '88 Hand Brake Shoes - Modified
- 944, 944S, 944 S2, 944T, 928, 928S 928 S4, 928 GT P.S. Belt Tension
- 911 Carrera Door Lock/Tumbler Set - Replacements
- 928S Front Hood - Height Adjustment
- 944 Front Fender - Modified
- 944, 944T M.Y. '89 Rear Lid Modified
- 911 C 2/4 *Door Contact Switch Modified
- 911 Carrera M.Y. 1985 Electric Window Winder Relay - Relocated
- 911 Carrera M.Y. 1985 Mirror Switch and Window Heater
- 911 Cabrio M.Y. '86 - '89 Convertible Locking Motors - Modified
- 911 C2/4 *Tonneau Cover Strap Fasteners Installed
- 944, 944 Turbo M.Y. '86 Seat Back Unlocking Knob - Installation Procedure
- 944, 944T M.Y. '89 A/C High and Low Pressure Switch Modified
- 924 Turbo M.Y. 1981 Tachometer - Supersession
- 911 Carrera 911 Turbo M.Y. 1988 Luggage Compartment Wiring Harness
- 928 S4 Securing of Battery Ground Cable - Modified
- 928 S4 911/T M.Y. '88 Alarm System - Modified
- 928 S4 All 4 CYL. M.Y. 1988 Windshield Wiper Relay - Modified
- 928S/928 S4 M.Y. '86, '87, '88 Modified Rear Lid Motor
- 911 Carrera 911 Turbo 928 S4 Spare Paint Deleted
- Warranty - Special Colored Mailing Envelopes
- Warranty - Engine Follow Up Service After Major Repairs
- Electrical Harnesses - Routing and Securing
- VIN, Certification, & Emission Label - Availability
- Vehicle - Approximate Oil/Fluid Capacities Chart
- Tools - Minimum Requirement Listing
- Warranty - Access Start Dates and Recall Inquiry
- Technical Information Books - Available Stock Listing
- Techincal Information Booklets - Current Availability
- Literature Bulletins - Valid Listing
- Microfiche - New Issues and Table of Contents
- Parts Marking - Law/Policy
- Warranty - Microfiche Tips, Types of Labor Time
- Vehicle - Maintenance Service Requirements
- Vehicle - Maintenance Requirements
- Overview
- Model 911, 911 Turbo
- Model 928 S
- Model 944, 944 Turbo
- 1000 Mile Maintenance Service
- 7,500, 22,500, 37,500 Miles Ext. Maintenance Service
- 30,000, 60,000, 90,000 Mile Maintenance Service
- Vehicle - Winterization
- Workshop Manuals - Ordering Information
- Warranty - Improper Modifications to Electrical System
- Warranty - Power Train Coverages
- Tools - Testers for Alarms, Central Warning, & Air Bag
- A/C - Capacities Update
- A/C - System Component Oil Filling Capacities
- Rear Heater Fan - Modified
- A/C - Revised Sealing Rings for Expansion Valves
- A/C - Noise From Evaporator Housing
- A/C Refrigerant - General Recovery & Recycling Tips
- A/C - Substitutes for R-12 Refrigerant
- Tools - Sun Air-Kare Unit Available for A/C Service
- A/C Refrigerant - Identifier
- A/C - Retrofitting R12 Systems to R134
- A/C - Refrigerant 134a Use
- Power Steering - New Procedures Working on Pumps/Racks
- Steering Gear - Testing for Damage
- Starter - Poor Engagement
- Starter Gear On Clutch Pressure Plate - Revised
- Engine - Intake System Cleaning After Engine Damage
- Crankcase - Oil Leaks from Cast-on Oil Pipe
- Cylinder Heads - Tightening Procedure & Service Changes
- Connecting Rod Nut - Revised Torque Procedure
- Oil Filters - Unnecessary Perforation of When Removing
- Valve Guide - Checking Procedure
- VIN Plate, Certification & Emission Label - Availability
- VIN, Certification & Emission Labels - Availability
- Electrical System - Poor Pin/Ground Lug Connections
- Power Steering Pump - Flush Hoses After Replacing
- Brake Pad - Installation Hardware Ordered Separately
- Brake Pads - Available Without Asbestos
- Front Brake Pads - Revised
- Valve Seat - Checking Depth
- Spark Plug & Connector - Removal
- Spark Plug - Replacement Intervals
- Spark Plugs - Install With Threads Clean and Dry
- Spark Plugs - Revised Plugs and Tightening Torque
- Tools - Compressor Seal Replacement
- Power Steering Gear - Diagnosis
- Cylinder Head Ceramic Liners - Cracks or Breaks
- Cylinder Head - Revised Nut Torquing Procedure
- Shock Absorbers - Identifying Chart
- Wheels - Unapproved Installation of 18 Inch Wheels
- Tires/Wheels - Summer Recommendations
- Tools - Special Wheel Balancing Adapter
- Wheels - Non Approval of Chrome Plating Aluminum Wheels
- Wheels - Approved 17 Inch Wheels
- Wheels - Retrofitting Unapproved 18 Inch Wheels
- Tire/Wheel Rim - Latest Winter Recommendations
- Wheel Balancing - Service Recommendations
- Wheel/Tire - General Information
- Tires/Wheels - Winter Tire/Wheel Rim Summary
- Tires - Bridgestone RE 71 Tire Approval
- Tires - Manufacturer Contact Information
- Tires (VR-Rated Summer ) - Do Not Mix With ZR Rated
- Rear Spoiler Control Unit - Revised, Manual Operation
- Door Window - Moves Out of Adjustment
- Seat Heating System - Operation
- Leather Upholstery - Reconditioning
- Power Seat Backrest - Excessive Backrest Flex
- Sunroof - Rattles
- Sunroof - Rattles While Open
- Battery - Preventing Battery Discharging
- Battery - Diagnosing a Discharging Condition
- Battery - Revised With 70 Ah Rating
- Exhaust System - Sulfur Like Smell
- Brakes - Pedal Pulsation/Vibration
- Engine - Tune-Up Specifications
- Fuel/Ignition Modules - Use of Aftermarket Microchips
- Brake Pressure Regulating Valve - Color Change
- Ignition Keys - Emblem Available as Spare Part
- Electrical Cabrio Top - Wiring Harness Rerouted
- Hardtop - Front Folder & Roof Inclination Modifications
- Cabrio Top - Water Leaks
- Paint - Manual Supplements
- Tools - Celette Collision Repair Systems
- Center Mounted Brake Light - Service Installation
- Vehicle Security Codes - Requesting
- Muffler Mounting Bolt - Loose or Broken
- Control Unit - Parts, Coding/Adapter Plug, O2 Sensor
- Tools - Sun Sleuth Diagnostic Unit Available
- Doors and Hinge Pillar - Modifications
- Windshield Cement - Mixing
- Body - Windshield Replacement Parts/Installation
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Motor Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- A/T - Engine Vacuum Testing
- A/T - How To Use A Pressure Gauge
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - Choosing the Right ATF
- M/T - Synchronizing Ring Diagnosing Failures
- A/T - Modified Mainshaft Seal and Guide Tube
- Transmission Fluids - Specifications
- Lockable Fuel Tank Cap - Available
- Oil Drain Plug - Corrected Torque Specification
- Engine Performance - Poor or Intermittent Loss of Power
- Vehicle - Year 2000 Hardware/Software Readiness
- Alignment - Caster Adjustment Values
- Front Wheel Seals - Squeaking or Whistling Noise
- Tools - Wheel Alignment Equipment
- CV Joint - New Grease
- Radios/CD Players - Obtaining & Entering Security Codes
- Paint - Correct Code Identification
- Cylinder Head Studs - Installation Precautions
- Hand Brake Shoe Retaining System - Correct Installation
- Seat Rail - Adjusting For More Leg Room
- A/C - Use of Correct Refrigerant
- Brakes - Squeaks May Be Normal Performance
- A/C - Refrigerent Oil Volume Capacities
- Engine - Approved Engine Oils Overview
- Tires - Summer Tire Summary
- Tires - Summary Of Summer Tires
- Engine - Approved Porsche A40 Engine Oils
- Tires/Wheels - Handling Instructions After Damaged
- Engine - Approved Engine Oil Specification
- Computers/Controls - Component Diagnosis
- Charging System - New Alternator Has Integrated Regulator