1991 Ford Mustang electrical system problems
31 owner complaints filed with NHTSA name the electrical system on the 1991 Ford Mustang — 40% of all complaints for this model year.
What owners report
“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…”
filed Mar 4, 2020
“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”
filed Jun 24, 2015
“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…”
filed Apr 16, 2013
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses. *tt
99222 · Service Bulletin/Repair Instructions · issued Oct 18, 1999
Electrical System problems in other Mustang years
| Year | Reports | Share |
|---|---|---|
| 2024 Mustang | 32 | 44% |
| 2022 Mustang | 7 | 14% |
| 2021 Mustang | 6 | 11% |
| 2020 Mustang | 24 | 21% |
| 2019 Mustang | 31 | 22% |
| 2018 Mustang | 30 | 16% |
| 2017 Mustang | 34 | 13% |
| 2016 Mustang | 71 | 19% |
| 2015 Mustang | 66 | 15% |
| 2014 Mustang | 11 | 3% |
| 2013 Mustang | 18 | 7% |
| 2012 Mustang | 21 | 4% |
Other reported problem areas on the 1991 Ford Mustang
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.