1991 Porsche 911 Recalls

1. Recall Description

   A PART OF THE STEERING COLUMN UPPER UNIVERSAL JOINT CRACKED DURING THE MANUFACTURING PROCESS.

   Possible Effects

   THIS CONDITION COULD RESULT IN NOISE AND FREE PLAY IN THE STEERING SYSTEM AND IF LEFT UNCORRECTED, WILL RESULT IN LOSS OF STEERING CONTROL.

   Action

   DEALERS WILL INSPECT THE UNIVERSAL JOINT FOR CRACKS AND WILL REPLACE CRACKED JOINTS WITH NEW PARTS.

   Notes

   OWNER NOTIFICATION:OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING AUGUST 1996. NOTE:OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT PORSCHE AT 1-800-545-8039.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION''S AUTO SAFETY HOTLINE AT 1-800-424-9393.

   Recall Manufacture Dates

   1988-04-01 - 1992-07-30

   Vehicles Affected

   12538

2. Recall Description

   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 CAN BECOME OVERLOADED DUE TO A BINDING OR SEIZED REAR HEATER BLOWER.

   Possible Effects

   THE OVERLOADED RESISTOR CAN CREATE HEAT SUFFICIENT TOIGNITE THE PLASTIC AIR PIPE TO WHICH IT IS CONNECTED, RESULTING IN AN ENGINECOMPARTMENT FIRE.

   Action

   PORSCHE DEALERS WILL INSTALL A NEW RESISTOR CONTAINING A CIRCUIT BREAKER.

   Notes

   SYSTEM: HEATER; WATER; DEFROSTER; CIRCUIT BREAKER.VEHICLE DESCRIPTION: PASSENGER VEHICLES.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPONSERVICE DATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREEOF CHARGE OR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASECONTACT PORSCHE SERVICE CENTER AT 1-800-545-8039. ALSO CONTACT THE NATIONALHIGHWAY TRAFFIC SAFETY ADMINISTRATION''S AUTO SAFETY HOTLINE AT 1-800-424-9393.

   Recall Manufacture Dates

   1988-04-01 - 1992-01-01

   Vehicles Affected

   11346

3. Recall Description

   THE HYDRAULIC BRAKE PRESSURE REDUCTION VALVE CAUSES THE RATE OF HYDRAULIC PRESSURE REDUCTION TO SLOW DOWN, WHICH MAY RESULT IN THE REAR WHEELS LOCKING-UP EVEN WITH THE ANTI-LOCK BRAKE SYSTEM IN OPERATION.

   Possible Effects

   REAR WHEEL LOCK-UP MAY RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT.

   Action

   PORSCHE DEALERS WILL INSTALL A MODIFIED HYDRAULIC BRAKE PRESSURE REDUCTION VALVE.

   Notes

   SYSTEM: BRAKES; HYDRAULIC; POWER ASSIST; CHECK VALVE.VEHICLE DESCRIPTION: PASSENGER VEHICLES; MODELS 911 TURBO AND 911 AMERICAROADSTER.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPONSERVICE DATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREEOF CHARGE OR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASECONTACT PORSCHE SERVICE CENTER AT 1-800-545-8039. ALSO CONTACT THE NATIONALHIGHWAY TRAFFIC SAFETY ADMINISTRATION''S AUTO SAFETY HOTLINE AT 1-800-424-9393.

   Recall Manufacture Dates

   1990-07-01 - 1992-10-01

   Vehicles Affected

   1149

4. Recall Description

   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.

   Possible Effects

   IMPAIRED THROTTLE PLATE OPERATION COULD PREVENT THEENGINE FROM RETURNING TO IDLE, RESULTING IN UNWANTED ENGINE SPEED AND POSSIBLEVEHICLE ACCIDENT.

   Action

   REPLACE THE CURRENT PLASTIC BALL SOCKETS WITH A NEW LINKAGE USING STEEL BALL SOCKETS, AND LUBRICATE THE CRUISE CONTROL RELAY LEVER. OWNERS ARE ADVISED NOT TO USE THE CRUISE CONTROL UNTIL THE MODIFICATION IS INSTALLED.

   Notes

   SYSTEM: CRUISE CONTROL.VEHICLE DESCRIPTION: PASSENGER CARS; CARRERA 2 AND CARRERA 4 MODELS.

   Recall Manufacture Dates

   1988-04-01 - 1992-01-01

   Vehicles Affected

   11091