The defect
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.
The risk
THE OVERLOADED RESISTOR CAN CREATE HEAT SUFFICIENT TOIGNITE THE PLASTIC AIR PIPE TO WHICH IT IS CONNECTED, RESULTING IN AN ENGINECOMPARTMENT FIRE.
The remedy
PORSCHE DEALERS WILL INSTALL A NEW RESISTOR CONTAINING A CIRCUIT BREAKER.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Porsche 911 | 1989, 1990, 1991, 1992 |
| Porsche Carrera | 1989, 1990, 1991, 1992 |
Components: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Porsche 911 | 1989 | 0 | 5 |
| Porsche 911 | 1990 | 1 | 4 |
| Porsche 911 | 1991 | 1 | 4 |
| Porsche 911 | 1992 | 2 | 4 |
| Porsche Carrera | 1989 | 1 | 2 |
| Porsche Carrera | 1990 | 3 | 2 |
| Porsche Carrera | 1991 | 1 | 2 |
| Porsche Carrera | 1992 | 1 | 2 |
Other electrical system recalls in 1993
14 of the 223 recall campaigns reported to NHTSA in 1993 concerned the electrical system; PORSCHE CARS N.A. INC. filed 72 campaigns in all.
| 93V200000 1 Dec 1993 | PREVOST CAR, INCORPORATED |
| 93V182000 8 Nov 1993 | PREVOST CAR, INCORPORATED |
| 93V153000 14 Sept 1993 | GENERAL MOTORS CORP. |
| 93V134000 13 Aug 1993 | BAYERISCHE MOTOREN WERKE |
| 93V132000 10 Aug 1993 | GENERAL MOTORS CORP. |
| 93V128000 2 Aug 1993 | GRUMMAN OLSON, INC |
| 93V127000 26 Jul 1993 | FLEETWOOD ENT., INC. |
| 93V102000 14 Jun 1993 | VOLKSWAGEN OF AMERICA,INC |
NHTSA recalls (public domain) · all recalls of 1993