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#BS-1991-POR911-53611991 Porsche 911
Based on reports from 1 owners and 4 recalls for this exact model.
Preliminary Verdict
Green Light
Based on 1 complaints, 0 crashes, 0 fires, and 4 recalls.
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Mechanic Inspection Checklist
1 owners reported engine issues — failures commonly reported around 92K miles.
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Engine (1 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
1991 Porsche 911: Known Issues & Problem Areas
Engine Issues
Engine complaints account for 100% of all reports filed for the 1991 Porsche 911, with 1 owners filing complaints with NHTSA. The median mileage at time of complaint is 92,398 miles, suggesting issues tend to surface around the 92K-mile mark.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (4 recalls)
VEHICLE SPEED CONTROL
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.
ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
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.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS
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.
STEERING: STEERING WHEEL/HANDLE BAR
A PART OF THE STEERING COLUMN UPPER UNIVERSAL JOINT CRACKED DURING THE MANUFACTURING PROCESS.
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
1991 Porsche 911 vs. Class Average (Minicompact Cars)
This vehicle
1
Class avg
12
Below the class average — fewer complaints than typical minicompact cars vehicles. A good sign.
Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 1 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 4 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Other Porsche 911 Model Years
1991 Porsche 911: Frequently Asked Questions
What is the most common problem with the 1991 Porsche 911?
Is the 1991 Porsche 911 reliable?
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Does the 1991 Porsche 911 have any recalls?
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What’s in the full report?
How is this different from free NHTSA data?
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Get the Full 1991 Porsche 911 Report
10 sections of AI analysis based on 1 owner reports. Know before you buy.