The 1991 Ford Mustang is a quintessential example of the Fox Body generation (1979-1993), a beloved platform for its lightweight design and potent V8 engine options. Available as a hatchback, notchback coupe, and convertible, its key trims included the economical LX and the performance-oriented GT. Originally priced from approximately $10,000 to $20,000, it stands out for its accessible performance, strong aftermarket support, and classic American muscle car appeal, making it enduringly popular among enthusiasts.
The Good
The 1991 Ford Mustang offers undeniable advantages, particularly with its 5.0L V8, delivering thrilling performance and a raw exhaust note that emotional buyers crave. Practical buyers appreciate its robust, simple mechanicals contributing to decent reliability, immense aftermarket support, and excellent value retention. Its iconic Fox Body design is both classic and recognizable, while affordability makes it an accessible entry into performance motoring.
The Bad
Known weaknesses for the 1991 Ford Mustang include typical Fox Body issues like aging interior plastics, electrical gremlins, and potential rust in common areas. The T-5 manual transmission can be fragile under hard use, and the AOD automatic might require rebuilding. Early 5.0L engine oil leaks and worn suspension components are also common, requiring careful pre-purchase inspection.
1991 Ford Mustang: Quick Overview
- Engine Options:
- 2.3L "Lima" SOHC I4 engine (standard in LX models)
- 5.0L "HO" (High Output) EFI V8 engine (standard in GT, optional in LX)
- Horsepower:
- 2.3L I4: Approximately 105 hp @ 4600 rpm
- 5.0L V8: 225 hp @ 4200 rpm and 300 lb-ft torque @ 3200 rpm
- Fuel Economy (EPA Estimates):
- 2.3L I4: Around 20-25 MPG combined (city/highway)
- 5.0L V8: Around 15-20 MPG combined (city/highway), depending on transmission and driving style
- 0-60 Times:
- 2.3L I4: Approximately 10-11 seconds
- 5.0L V8 (LX 5.0 / GT): Approximately 6.0-6.5 seconds
- Towing Capacity:
- Not a primary feature or highly rated; generally considered minimal, under 1,000 lbs if equipped with proper hitch, primarily for light utility.
- Trim-Level Features:
- LX Trim: Offered as a hatchback, notchback coupe, and convertible. More subdued exterior styling without the aggressive body kit of the GT. Standard features included power steering, power brakes, and a basic interior. The LX 5.0 variant provided the powerful V8 engine in a lighter, less visually flamboyant package, often considered a "sleeper." Interior options included cloth or optional leather seats, air conditioning, AM/FM stereo, and power windows/locks.
- GT Trim: Available as a hatchback and convertible. Featured aggressive aerodynamic bodywork, fog lights, distinctive taillights, and a specific GT-style interior with sportier seats. Standard with the 5.0L V8 engine, sport-tuned suspension, and larger wheels/tires. Also typically included more premium features like a comprehensive gauge cluster, power windows/locks, cruise control, tilt steering wheel, and a premium sound system as standard or optional equipment. The GT offered a more visually and mechanically enhanced performance package.
1991 Ford Mustang Specifications
Vehicle Information
| Year | 1991 |
| Make | Ford |
| Model | Mustang |
| Trim | - |
| Style | - |
| Type | Cabriolet |
| Category | Compact Car |
Manufacturing Details
| Made In | United States |
| Manufacturing City | DEARBORN |
Dimensions
| Doors | 2-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 2.3 OHC EFI |
| Engine Size | 5L |
| Engine Cylinders | 8 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1991 Ford Mustang Have?
The 1991 Ford Mustang, part of the Fox Body generation, has several frequently reported problems and long-term reliability concerns that potential owners should be aware of. One common issue revolves around the transmissions. The T-5 manual transmission, while popular, can be notoriously weak, especially if subjected to aggressive driving or high-horsepower modifications. Synchros can wear out, and gears can break, often necessitating rebuilds or upgrades. The AOD automatic transmission is also known for its limitations, with many units requiring rebuilds around the 100,000-mile mark due to worn bands and clutches, particularly in 5.0L V8 models.
Electrically, these cars can suffer from aging wiring harnesses and corroded grounds, leading to intermittent issues with lights, gauges, power windows, and central locking. The power window motors themselves are often cited as failure points. Interior plastics, being 30+ years old, are prone to becoming brittle, cracking, and fading, especially on the dashboard and door panels.
Suspension components, including bushings, ball joints, and shocks/struts, will likely be worn out, leading to loose steering, excessive body roll, and poor ride quality. Rust can be a concern, particularly in the shock towers, subframe connectors, and under the battery tray. The 5.0L V8 is generally robust but can develop oil leaks from the oil pan gasket, valve covers, and rear main seal as it ages. The water pump and alternator are also common replacement items due to age.
While major recalls specific to the 1991 model year are not extensively documented for critical safety flaws beyond standard-era issues, general Fox Body recalls related to fuel line routing or ignition switch concerns might apply to various years. Owners should always check specific VINs for any open recalls. Overall, the Fox Body's simplicity makes most repairs straightforward, but cumulative age-related wear is a significant factor.
Electrically, these cars can suffer from aging wiring harnesses and corroded grounds, leading to intermittent issues with lights, gauges, power windows, and central locking. The power window motors themselves are often cited as failure points. Interior plastics, being 30+ years old, are prone to becoming brittle, cracking, and fading, especially on the dashboard and door panels.
Suspension components, including bushings, ball joints, and shocks/struts, will likely be worn out, leading to loose steering, excessive body roll, and poor ride quality. Rust can be a concern, particularly in the shock towers, subframe connectors, and under the battery tray. The 5.0L V8 is generally robust but can develop oil leaks from the oil pan gasket, valve covers, and rear main seal as it ages. The water pump and alternator are also common replacement items due to age.
While major recalls specific to the 1991 model year are not extensively documented for critical safety flaws beyond standard-era issues, general Fox Body recalls related to fuel line routing or ignition switch concerns might apply to various years. Owners should always check specific VINs for any open recalls. Overall, the Fox Body's simplicity makes most repairs straightforward, but cumulative age-related wear is a significant factor.
How long will the 1991 Ford Mustang last?
The 1991 Ford Mustang, particularly with the 5.0L V8, is known for its remarkable long-term durability when properly maintained. Many owners report these vehicles easily surpassing 150,000 to 200,000 miles, with well-cared-for examples reaching even higher. The 5.0L "HO" engine is a workhorse, capable of enduring significant mileage. However, reaching high mileage often depends heavily on consistent maintenance habits, including regular oil changes and prompt attention to minor issues.
Over time, weaknesses tend to manifest as worn suspension components, failing automatic transmissions (AOD), electrical gremlins due to aging wiring, and rust, particularly in wetter climates. Interior plastics also become brittle. While the core mechanicals are strong, the ancillary systems and rubber components require regular refreshing to ensure comfortable and reliable service into its third decade of life. Owners who neglect maintenance will experience a much shorter service life, while enthusiasts often rebuild or upgrade components, extending their Mustang's usability indefinitely.
Over time, weaknesses tend to manifest as worn suspension components, failing automatic transmissions (AOD), electrical gremlins due to aging wiring, and rust, particularly in wetter climates. Interior plastics also become brittle. While the core mechanicals are strong, the ancillary systems and rubber components require regular refreshing to ensure comfortable and reliable service into its third decade of life. Owners who neglect maintenance will experience a much shorter service life, while enthusiasts often rebuild or upgrade components, extending their Mustang's usability indefinitely.
What Technology & Safety Features are Included?
The 1991 Ford Mustang, being a product of the early 90s, featured technology that was relatively basic by today's standards but respectable for its era. Built-in tech was primarily focused on convenience and basic functionality rather than advanced electronics.
Entertainment: Standard entertainment typically included an AM/FM stereo, often with a cassette player. Higher trim levels, like the GT, or optional packages offered a "Premium Sound System" which might have included a graphic equalizer, more speakers, and sometimes a CD player option in later Fox Body years, though a CD player was less common in 1991 and often an aftermarket upgrade. Power antennas were also available.
Driver-Assistance: Driver-assistance features were very limited. The most advanced systems would be power steering and power brakes. Optional convenience features included cruise control, tilt steering wheel, and intermittent windshield wipers. There were no active driver-assistance systems like adaptive cruise control, lane-keeping assist, or blind-spot monitoring, which are modern developments.
Safety Features: The 1991 Mustang saw the continuation of the driver's side airbag, which became standard in 1990 across the Mustang line. This was a significant safety upgrade for its time. Other standard safety features included three-point seatbelts for front occupants and lap belts for rear passengers. Anti-lock braking systems (ABS) were not standard on all models and often an optional extra, typically only for the front wheels or not available on base models. Crumple zones were designed into the vehicle structure, but advanced crash-test ratings comparable to today's NCAP or IIHS standards are not readily available or were not conducted with the same methodology. The overall safety structure was considered adequate for its time, but significantly less robust than modern vehicles. Power windows and door locks were common convenience features but were not considered safety-critical elements.
Entertainment: Standard entertainment typically included an AM/FM stereo, often with a cassette player. Higher trim levels, like the GT, or optional packages offered a "Premium Sound System" which might have included a graphic equalizer, more speakers, and sometimes a CD player option in later Fox Body years, though a CD player was less common in 1991 and often an aftermarket upgrade. Power antennas were also available.
Driver-Assistance: Driver-assistance features were very limited. The most advanced systems would be power steering and power brakes. Optional convenience features included cruise control, tilt steering wheel, and intermittent windshield wipers. There were no active driver-assistance systems like adaptive cruise control, lane-keeping assist, or blind-spot monitoring, which are modern developments.
Safety Features: The 1991 Mustang saw the continuation of the driver's side airbag, which became standard in 1990 across the Mustang line. This was a significant safety upgrade for its time. Other standard safety features included three-point seatbelts for front occupants and lap belts for rear passengers. Anti-lock braking systems (ABS) were not standard on all models and often an optional extra, typically only for the front wheels or not available on base models. Crumple zones were designed into the vehicle structure, but advanced crash-test ratings comparable to today's NCAP or IIHS standards are not readily available or were not conducted with the same methodology. The overall safety structure was considered adequate for its time, but significantly less robust than modern vehicles. Power windows and door locks were common convenience features but were not considered safety-critical elements.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
1991 Ford Mustang Prices and Market Value
When new, the 1991 Ford Mustang ranged from approximately $10,000 for a base LX coupe with the four-cylinder engine, up to around $20,000 for a well-equipped GT convertible. Today, the used market prices vary significantly based on condition, mileage, trim, and originality. A project car might be found for $3,000-$5,000, while clean, stock LX 5.0 or GT models typically fetch $10,000-$20,000. Exceptional, low-mileage, unmolested examples can exceed $25,000.
Depreciation was significant in its early life, like most mass-produced cars. However, the Fox Body Mustang, particularly the 5.0L variants, has experienced an appreciation trend in recent years, becoming a collector's item. Factors affecting resale value include the presence of the 5.0L V8, manual transmission, overall condition (rust-free is key), originality versus heavy modification, mileage, and documentation. Convertibles and notchbacks often command slightly higher prices than hatchbacks in excellent condition, though the LX 5.0 hatch is also highly sought after.
Depreciation was significant in its early life, like most mass-produced cars. However, the Fox Body Mustang, particularly the 5.0L variants, has experienced an appreciation trend in recent years, becoming a collector's item. Factors affecting resale value include the presence of the 5.0L V8, manual transmission, overall condition (rust-free is key), originality versus heavy modification, mileage, and documentation. Convertibles and notchbacks often command slightly higher prices than hatchbacks in excellent condition, though the LX 5.0 hatch is also highly sought after.
1991 Ford Mustang Cost of Ownership
Owning a 1991 Ford Mustang can be relatively economical or costly depending on its condition and engine. Insurance can be moderate for base models but higher for 5.0L V8s, especially for younger drivers. Fuel costs vary significantly; the 2.3L I4 is decent, while the 5.0L V8 is thirstier, especially with spirited driving.
Maintenance and repair costs can be low to moderate. Parts are generally abundant and affordable due to massive aftermarket support and commonality with other Ford models. DIY repairs are feasible for many owners due to the car's simplicity. However, neglected examples will incur significant deferred maintenance costs, making it costly initially. Long-term, if well-maintained, it's a relatively affordable performance car to own, especially if you're handy with a wrench, balancing fuel consumption with accessible parts.
Maintenance and repair costs can be low to moderate. Parts are generally abundant and affordable due to massive aftermarket support and commonality with other Ford models. DIY repairs are feasible for many owners due to the car's simplicity. However, neglected examples will incur significant deferred maintenance costs, making it costly initially. Long-term, if well-maintained, it's a relatively affordable performance car to own, especially if you're handy with a wrench, balancing fuel consumption with accessible parts.
1991 Ford Mustang Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
1991 Ford Mustang Safety Rating
NHTSA
1991 Ford Mustang Insurance
Insurance for a 1991 Ford Mustang is moderately priced, reflecting its status as a Cabriolet with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1991 Ford Mustang Compare to Other Cabriolet?
The 1991 Ford Mustang, particularly in its 5.0L V8 LX or GT trim, stacked up well against its primary rivals.
Performance: Against the Chevrolet Camaro Z28 and Pontiac Firebird Trans Am (both using GM's F-body platform, often with a 5.0L or 5.7L V8), the Mustang 5.0 offered competitive straight-line acceleration. While the F-bodies often had a slight edge in handling due to their longer wheelbase and more sophisticated suspensions (though still solid-axle), the lighter Fox Body Mustang was incredibly agile and easily modifiable for track use. Japanese rivals like the Nissan 300ZX (Z32) and Mazda RX-7 (FC generation) offered more refined handling and often more advanced engineering (e.g., independent rear suspension, turbocharging), but typically at a significantly higher price point and with more complex maintenance needs.
Features: Feature-wise, the Mustang was on par with its American counterparts, offering power amenities, air conditioning, and optional premium sound systems. Japanese sports cars generally provided more luxurious interiors, advanced electronics, and superior fit and finish, but again, at a premium. The Mustang focused more on raw performance and simplicity.
Reliability: All cars of this era have their quirks. The Mustang's 5.0L V8 is known for its robustness, often outlasting the transmissions it's paired with (T-5 manual, AOD automatic). F-bodies also had reliable V8s but were prone to interior rattles and electrical issues. Japanese cars from this era, while often well-built, can be incredibly expensive to fix when their specialized components fail.
Price: The Mustang's strongest suit was its price. It consistently offered more performance per dollar than nearly any competitor. It was significantly cheaper than a 300ZX or RX-7 and generally more affordable than a comparable Z28 or Trans Am, especially when considering the LX 5.0 "sleeper."
Alternatives:
The 1991 Mustang remains a better alternative for those seeking affordable, modifiable V8 performance with strong aftermarket support and a classic American car feel.
Performance: Against the Chevrolet Camaro Z28 and Pontiac Firebird Trans Am (both using GM's F-body platform, often with a 5.0L or 5.7L V8), the Mustang 5.0 offered competitive straight-line acceleration. While the F-bodies often had a slight edge in handling due to their longer wheelbase and more sophisticated suspensions (though still solid-axle), the lighter Fox Body Mustang was incredibly agile and easily modifiable for track use. Japanese rivals like the Nissan 300ZX (Z32) and Mazda RX-7 (FC generation) offered more refined handling and often more advanced engineering (e.g., independent rear suspension, turbocharging), but typically at a significantly higher price point and with more complex maintenance needs.
Features: Feature-wise, the Mustang was on par with its American counterparts, offering power amenities, air conditioning, and optional premium sound systems. Japanese sports cars generally provided more luxurious interiors, advanced electronics, and superior fit and finish, but again, at a premium. The Mustang focused more on raw performance and simplicity.
Reliability: All cars of this era have their quirks. The Mustang's 5.0L V8 is known for its robustness, often outlasting the transmissions it's paired with (T-5 manual, AOD automatic). F-bodies also had reliable V8s but were prone to interior rattles and electrical issues. Japanese cars from this era, while often well-built, can be incredibly expensive to fix when their specialized components fail.
Price: The Mustang's strongest suit was its price. It consistently offered more performance per dollar than nearly any competitor. It was significantly cheaper than a 300ZX or RX-7 and generally more affordable than a comparable Z28 or Trans Am, especially when considering the LX 5.0 "sleeper."
Alternatives:
- Chevrolet Camaro Z28 / Pontiac Firebird Trans Am (3rd Gen): Similar American V8 muscle, slightly better handling in stock form, but often heavier.
- Nissan 300ZX (Z32): More refined, sophisticated, better interior, but much higher price and complexity.
- Mazda RX-7 (FC): Unique rotary engine, excellent handling, but demanding maintenance and less torque.
The 1991 Mustang remains a better alternative for those seeking affordable, modifiable V8 performance with strong aftermarket support and a classic American car feel.
Final Verdict: Is the 1991 Ford Mustang a Good Cabriolet?
The 1991 Ford Mustang is ideal for enthusiasts seeking an affordable, modifiable, and iconic American muscle car. It's perfect for those who appreciate straightforward V8 performance, a strong aftermarket, and a vehicle that offers a raw, engaging driving experience. It's a fantastic choice for a project car, a weekend cruiser, or a platform for drag racing or street performance.
It is definitely worth buying today, but under specific conditions. Focus on used examples, prioritizing a solid, rust-free body over perfect paint or interior. The 5.0L V8 LX or GT trims are highly recommended for their performance potential and collectibility. While a four-cylinder LX can be a budget entry, its limited power usually means less long-term appeal. Be prepared for potential deferred maintenance on older components. It's best for buyers who are handy or have a reliable mechanic, as regular upkeep and addressing age-related issues are crucial for enjoyment. Avoid heavily thrashed or poorly modified examples unless you're planning a full restoration.
It is definitely worth buying today, but under specific conditions. Focus on used examples, prioritizing a solid, rust-free body over perfect paint or interior. The 5.0L V8 LX or GT trims are highly recommended for their performance potential and collectibility. While a four-cylinder LX can be a budget entry, its limited power usually means less long-term appeal. Be prepared for potential deferred maintenance on older components. It's best for buyers who are handy or have a reliable mechanic, as regular upkeep and addressing age-related issues are crucial for enjoyment. Avoid heavily thrashed or poorly modified examples unless you're planning a full restoration.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.