Tl* the contact owns a 1991 ford mustang. The contact stated that the independent mechanic notified him that the ignition switch had caught on fire, after the vehicle was parked and repairs were completed to the vehicle. The contact stated that the independent mechanic had replaced the fuel pump, fuel injector, air flow, and roller rockers prior to the fire. The contact stated that the fire was extinguished by the mechanic using a fire extinguisher. No injuries were sustained, the police or fire department were not called. The dealer or the manufacturer was not notified of the failure. The failure mileage was 49,500.
The worst 1991 Ford Mustang problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical31
- Transmission9
- Airbags7
- Engine6
- Brakes5
- Fuel system4
- Seats4
- Lights3
- Seat belts3
- Acceleration2
- Body2
- Steering2
- Suspension2
- Visibility2
- Locks1
- Tires1
- Wheels1
Specific symptoms reported on the 1991 Ford Mustang
Recalls 2
Electrical system: ignition
- What is wrong
- The ignition switch could experience an internal short circuit.
- Risk
- This condition could cause overheating, smoke, and possibly fire in the steering column area of the vehicle.
- Remedy
- Dealers will replace the ignition switch.
Recall number 96V071000 · Recall details
Power train: automatic transmission
- What is wrong
- The park rod assembly contains a park cam with inadequate surface hardness, which could lead to park disengagement or no park engagement when the lever is placed in park.
- Risk
- If park is not engaged and the parking brake is off, avehicle roll-away could result.
- Remedy
- Replace park rod assembly on automatic transmissions.
Recall number 91V048000 · Recall details
See all 2 recalls for the 1991 Ford Mustang
Defect investigations
Fuel line routing
There is no summary currently available
PE94010
Hood latch failures
There is no summary currently available
PE91137
Technical service bulletins for the 1991 Ford Mustang 35
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Some vehicles may exhibit heater core leaks
- Information regarding transmission fluid usage charts
- Some vehicles may exhibit a vibration that may be heard of felt at the clutch pedal between idle and 2300...
- Subject regarding contamination from prior transmission concerns or excess wear may be trapped in the...
- Information regarding the new transmission cooler flusher- service tip
- Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses
- Information on identifying non-approved / alternate refrigerants which could cause safety, and performance...
- Information on the new flush and fill tool available through rotunda
- Experiencing a whine / buzz type noise in the speakers of the entertainment radio or two-way radio on...
- Ford motor company now recommends sae 5W-30 viscosity grade for servicing any ford gasoline-powered...
1991 Ford Mustang fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.3L 4‑cyl | RWD | 19 | 26-28 | 21-22 |
| 5.0L 8‑cyl | RWD | 15-16 | 22-23 | 17-19 |
What 1991 Ford Mustang owners say
Most recent owner complaints, unedited.
The airbags could deploy at an inappropriate time or not at all due to this problem the air bag blinks all the time and the manufacturer has no answers so I am red flagging this problem thank you
Driver side seat belts will not retract automatically causing concern belt would fail to work.
Tl* the contact owns a 1991 ford mustang. The contact stated that while the vehicle was parked, the contact noticed smoke and then fire from the dash board. The contact called the fire department and personally extinguished the fire. The fire department stated the fire was started due to an electrical component. The contact took the vehicle to a local mechanic for diagnostic testing. The mechanic stated the fire was caused by a defective ECM. The contact called manufacturer after noticing a the federal safety agency campaign I.d. Number 96v071000 (electrical system). The manufacturer stated the parts for the remedy would not be available until six months. The failure mileage was 65,000.
1991 mustang lx 5.0 sudden acceleration accident. 1991 mustang lx 5.0 making left turn from stop sign in residential neighborhood when engine on its own went full throttle causing driver to lose control and leave roadway where it continued under full throttle through tree branches and bushes, a 6 foot wrought iron style fence over a retaining wall at which point it briefly became airborne landing on a pool deck then continuing at full throttle onto the subdivision swimming pool tarp until the front end crashed into the pool wall on the opposite side of the pool causing the airbag to deploy. After impact with the pool wall, the right rear tire which was still on the pool deck continued spinning leaving melted rubber on the pool deck. The mustang ended up partially submerged. Thank god that the driver and passenger escaped with minor injuries. 7 years previously the same 1991 mustang on its own, went full throttle, but on a straight 4 lane road. At that time, the driver tried to stop the mustang by braking to no avail. The mustang traveled over 2 miles with the driver applying the brakes until the driver ran out of road and drove the car uphill between two houses at which time the ignition switch was turned off. When the car was restarted in park after the event, the engine again went to full throttle in park with the tachometer going to the 6,000 RPM range. At that time, the car was trucked to a ford dealer which acknowledged the problem and repaired the linkage. The ford dealer assured us the problem had been fixed.
I had parked my car in my driveway, I put my parking brake on because my driveway is on a slope. I went to use the car again I removed the parking brake and that's when my brakes locked up. Since then I had to leave my car in the garage.
Had smoke coming out from under dash. Lost radio, and tail lights wires from light switch to tail light melted. Not sure if from faulty ignition switch. Would like more info.
While vehicle was parked and unattended, the air bag in steering wheel activated. This is the first occurance. No injuries,. Replacement has not occured.
The transmission has gone out three times in this car. The first time it had 20000 miles on it and under warranty and the dealer sent it to a local transmission shop who rebuilt it. One year later it went out again. The dealer would not cover ford would not cover. I got stuck replacing the transmission out of pocket. Now the transmission went again.
Dt: the contact stated there was a recall the federal safety agency campaign 96v071000 concerning the ignition. However the recall repairs did not correct the problem. The vehicle has same problems again. The contact took the vehicle to the dealer and the vehicle was repaired according to the recall at the contact's expense.
Compare the 1991 Ford Mustang
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Other model years
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Questions about the 1991 Ford Mustang
Is the 1991 Ford Mustang reliable?
Owners have filed 77 complaints about the 1991 Ford Mustang, fewer than a typical Mustang model year.
What is the most common problem with the 1991 Ford Mustang?
Electrical system, with 31 complaints, typically around 115,000 miles. Next is transmission (9).
How many recalls does the 1991 Ford Mustang have?
2 recalls, covering electrical system and power train.
Was there a recall on the 1991 Ford Mustang electrical?
Yes, 1 recall: 96V071000. Check your VIN to see if your car still needs the free repair.
What year does the Ford Mustang have the most electrical problems?
The Ford Mustang model years with the most electrical complaints are 2005 (225 complaints), 2016 (73 complaints) and 2015 (68 complaints).
What gas mileage does the 1991 Ford Mustang get?
Official estimates for the 1991 Ford Mustang range from 17 to 22 mpg combined. The most efficient version (2.3L 4-cyl, RWD) gets 19 city and 26-28 highway.
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