Total Complaints
1 filings
PORSCHE 911 · model year
1991 PORSCHE 911
1 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1991PORSCHE911 carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1991 911 is engine with 1 filings. Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 5 investigation files overlapping the 1991 911. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| ENGINE | 1 |
Recent Complaints
20210513ENGINE
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.
Mileage: 92,398
Compare 1991PORSCHE911 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1991 PORSCHE 911 have?▼
The 1991 PORSCHE 911 has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1991 PORSCHE 911?▼
The most-complained component for the 1991 PORSCHE 911 is ENGINE with 1 complaints. Other frequently reported areas include various components.
Is the 1991 PORSCHE 911 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.