1991 Porsche 911: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
1 owner complaints analyzed
4 distinct recall campaigns
92,398 mi median reported failure mileage
Scope: 1991 model year. Data snapshot: . 1 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 1 of 1 complaints (100.0%). A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 1 |
Engine: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0
75,000 to 99,999 miles has the most reports with usable mileage (1). 0 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
2021: 1
Pattern summary
Engine leads the component reports. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11416523 · 2021-05-13 (May 13, 2021)
ON 4/18/2021 I WAS DRIVING MY 1991 PORSCHE C2 ON THE 10 FREEWAY IN MONTEREY PARK, CA WHEN SUDDENLY I HEARD A LOUD BANG SOUND FROM THE ENGINE. I GOT OFF THE FREEWAY AND STOPPED AND FOUND THAT THE ENTIRE ENGINE COOLING FAN HAD COMPLETELY SHEARED OFF AND BROKE APART ALONG WITH THE FAN BELTS. LESS THAN 5 YEARS AGO THE SAME ENGINE COOLING FAN HAD TO BE REPLACED BECAUSE IT BROKE APART. THIS FAN ALSO BROKE APART ABOUT 20 YEARS AGO! THE CURRENT INCIDENT CAUSED DAMAGE TO THE ALTERNATOR AND AIR CONDITIONER COMPRESSOR AND THE BELTS AND SMALL DENTS TO THE …
Owner-reported narrative. 92,398 miles reported. Look up ODI 11416523 at NHTSA ↗
Recall history
4 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
92V142000 · Vehicle Speed Control
Reported: 1992-10-05 (October 5, 1992)
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 UNWANTED ENGINE SPEED AND POSSIBLEVEHICLE ACCIDENT.
Remedy: 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.
NHTSA campaign record ↗93V204000 · Electrical System:Wiring:Fuses And Circuit Breakers
Reported: 1993-12-07 (December 7, 1993)
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.
Consequence: THE OVERLOADED RESISTOR CAN CREATE HEAT SUFFICIENT TOIGNITE THE PLASTIC AIR PIPE TO WHICH IT IS CONNECTED, RESULTING IN AN ENGINECOMPARTMENT FIRE.
Remedy: PORSCHE DEALERS WILL INSTALL A NEW RESISTOR CONTAINING A CIRCUIT BREAKER.
NHTSA campaign record ↗93V205000 · Service Brakes, Hydraulic:Power Assist:Vacuum:Hoses, Lines/Piping, And Fittings
Reported: 1993-12-07 (December 7, 1993)
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.
Consequence: REAR WHEEL LOCK-UP MAY RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT.
Remedy: PORSCHE DEALERS WILL INSTALL A MODIFIED HYDRAULIC BRAKE PRESSURE REDUCTION VALVE.
NHTSA campaign record ↗96V147000 · Steering: Steering Wheel/Handle Bar
Reported: 1996-08-08 (August 8, 1996)
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, WILL RESULT IN LOSS OF STEERING CONTROL.
Remedy: DEALERS WILL INSPECT THE UNIVERSAL JOINT FOR CRACKS AND WILL REPLACE CRACKED JOINTS WITH NEW PARTS.
NHTSA campaign record ↗