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#BS-1991-FORFSU-6AC6

1991 Ford F Super Duty

Based on reports from 1 owners and 2 recalls for this exact model.

Complaints
1
Crashes
0
Fires
0
Recalls
2
TSBs
47
✅

Preliminary Verdict

Green Light

Based on 1 complaints, 0 crashes, 0 fires, and 2 recalls.

See full verdict with buy/skip conditions

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Mechanic Inspection Checklist

!Check the Fuel System, Gasoline:storage:auxillary Tank:selector DevicesHIGH

1 owners reported fuel system, gasoline:storage:auxillary tank:selector devices issues.

+ 3 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Fuel System, Gasoline:storage:auxillary Tank:selector Devices (1 reports).

Includes fuel costs, common repairs, and recall riskUnlock

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

10 sections total in the full reportUnlock all

Where the complaints fall

Fuel System, Gasoline:storage:auxillary Tank:selector Devices1 (100%)

1991 Ford F Super Duty: Known Issues & Problem Areas

Fuel System, Gasoline:storage:auxillary Tank:selector Devices Issues

Fuel System, Gasoline:storage:auxillary Tank:selector Devices complaints account for 100% of all reports filed for the 1991 Ford F Super Duty, with 1 owners filing complaints with NHTSA.

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

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Recall History (2 recalls)

01I008000Jul 2001

FUEL SYSTEM, GASOLINE

THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: 1990-1993 FORD F-SERIES VEHICLES EQUIPPED WITH DUAL FUEL TANKS AND 4.9, 5.0,5.8, OR 7.5 LITER GASOLINE FUELED ENGINES. SOME VEHICLES CAN EXPERIENCE A CROSS TANK FUEL FLOW CONDITION DUE TO A DAMAGED CHECK VALVE IN THE FUEL PUMP/SENDER ASSEMBLY. FUEL MAY BE SUPPLIED FROM ONE TANK AND SOME OR ALL OF THE UNUSED FUEL MAY BE RETURNED TO THE OTHER TANK.

93V125000Oct 1993

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

A MALFUNCTIONING CHECK VALVE WITHIN THE FUEL PUMP ASSEMBLY CAUSES A PORTION OF THE UNUSED FUEL FROM ONE TANK TO BE RETURNED TO THE SECOND TANK. WHEN THIS OCCURS, THE CAPACITY OF THE SECOND TANK CAN BE EXCEEDED, CAUSING FUEL SPILLAGE.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 1 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Ford F Super Duty Model Years

2008200720062005200420032002200120001999199819971996199519941993199219911990198919881987198619851984198319821981
View all Ford F Super Duty years →

1991 Ford F Super Duty: Frequently Asked Questions

What is the most common problem with the 1991 Ford F Super Duty?
The most commonly reported issue with the 1991 Ford F Super Duty is related to the fuel system, gasoline:storage:auxillary tank:selector devices, with 1 complaints filed with NHTSA.
Is the 1991 Ford F Super Duty reliable?
The 1991 Ford F Super Duty has 1 complaints, 0 crash reports, and 0 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.
How much does it cost to fix 1991 Ford F Super Duty problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 1991 Ford F Super Duty have any recalls?
Yes, the 1991 Ford F Super Duty has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Ford F Super Duty problems start?
Mileage data is limited for this vehicle. The full report analyzes available data to identify failure patterns by mileage range.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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