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1990 Porsche 911 Service and Repair Manual
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$29.99 USD
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Covers all 1990 911 trims — Carrera 2 Targa 2-Door, Carrera 2 Convertible 2-Door, Carrera 2 Coupe 2-Door +3 more ·
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Complete repair procedures
Wiring diagrams & schematics
Torque specifications
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1990 Porsche 911 Service and Repair Manual
Regular price
$29.99 USD
Unit price
1990 Porsche 911 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
- Carrera 2 Targa 2-Door
- Carrera 2 Convertible 2-Door
- Carrera 2 Coupe 2-Door
- Carrera 4 Convertible 2-Door
- Carrera 4 Coupe 2-Door
- Carrera 4 Targa 2-Door
Engines covered
- 3.6L 3606CC H6 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
LUGGAGE IN THE LUGGAGE COMPARTMENT AND OR PLASTIC TRIM SURROUNDING THE SAFETY LATCH MAY PREVENT THE LATCH ON THE FRONT HOOD FROM PROPERLY LOCKING.
Consequence
LATCH FAILURE COULD CAUSE HOOD TO OPEN AND OBSTRUCT THEDRIVER'S FRONT VIEW WHICH COULD RESULT IN AN
Remedy
REPLACE PLASTIC TRIM PIECE AND INSTALL A BRACKET BEHIND THE SAFETY LATCH TO PREVENT INTERFERENCE.
A PART OF THE STEERING COLUMN UPPER UNIVERSAL JOINT CRACKED DURING THE MANUFACTURING PROCESS.
Consequence
THIS CONDITION COULD RESULT IN NOISE AND FREE PLAY IN THE STEERING SYSTEM AND IF LEFT UNCORRECTED, W
Remedy
DEALERS WILL INSPECT THE UNIVERSAL JOINT FOR CRACKS AND WILL REPLACE CRACKED JOINTS WITH NEW PARTS.
AFTER THE ENGINE HAS BEEN TURNED OFF, THE REAR HEATER WILL AUTOMATICALLY OPERATE IN ORDER TO DISSIPATE HEAT IN THE ENGINE HEATING SYSTEM. DURING THIS OPERATION, THE RESISTOR FOR THE REAR HEATER BLOWER
Consequence
THE OVERLOADED RESISTOR CAN CREATE HEAT SUFFICIENT TOIGNITE THE PLASTIC AIR PIPE TO WHICH IT IS CONN
Remedy
PORSCHE DEALERS WILL INSTALL A NEW RESISTOR CONTAINING A CIRCUIT BREAKER.
THE BALL SOCKETS ON THE CRUISE CONTROL LINKAGE CAN BREAK, ALLOWING THE CRUISE CONTROL LINKAGE TO BECOME DETACHED ON ONE END AND JAM ON NEARBY COMPONENTS, WHICH COULD IMPAIR THROTTLE PLATE OPERATION.
Consequence
IMPAIRED THROTTLE PLATE OPERATION COULD PREVENT THEENGINE FROM RETURNING TO IDLE, RESULTING IN UNWAN
Remedy
REPLACE THE CURRENT PLASTIC BALL SOCKETS WITH A NEW LINKAGE USING STEEL BALL SOCKETS, AND LUBRICATE
Special tools and equipment information for the Boxster, Cayman, 911, and Panamera
Information for PIWIS tester update 42.300.050 & .052
Instructions on manufactures certificate for approved Porsche A40 engine oils
Instructions on manufacturers certificate for approved C20 engine oils
Instructions on manufactures certificate for approved Porsche C30 engine oils
Information for PIWIS tester update 42.300.035
Information for PIWIS tester update 42.300.040 & .041
Information for PIWIS tester update 42.300.030 - .032
Showing the 8 most recent of 82 technical service bulletins on file with NHTSA.
HOOD CYLINDER FAILED 2 TIMES, ONCE CAUSING INJURY.
TRUNK SUPPORT FAILED TWICE.
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