1991 Porsche 911: problems, recalls and reliability
4 recalls and 1 owner complaint on record; most reports concern engine.
Data updated weekly · latest recall Aug 1996
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 1 owner complaints filed with NHTSA for this exact model year.
“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 back lid.”Owner report · Engine · Apr 2021
Recalls - 4 campaigns
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.
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.
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.
Remedy: PORSCHE DEALERS WILL INSTALL A NEW RESISTOR CONTAINING A CIRCUIT BREAKER.
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.
Remedy: PORSCHE DEALERS WILL INSTALL A MODIFIED HYDRAULIC BRAKE PRESSURE REDUCTION VALVE.
A PART OF THE STEERING COLUMN UPPER UNIVERSAL JOINT CRACKED DURING THE MANUFACTURING PROCESS.
Remedy: DEALERS WILL INSPECT THE UNIVERSAL JOINT FOR CRACKS AND WILL REPLACE CRACKED JOINTS WITH NEW PARTS.
Specifications
Factory options offered for the 1991 model year, decoded from the NHTSA vPIC database. Individual vehicles have one of each.
How other years compare
Check your exact 911 by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 1991 Porsche 911 reliable?
NHTSA has 1 owner complaint and 4 recall campaigns on record for the 1991 Porsche 911. The most complained-about area is engine.
Does the 1991 Porsche 911 have open recalls?
4 recall campaigns have been issued, the latest concerning vehicle speed control. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.