1991 Ford F-150 electrical system problems
50 owner complaints filed with NHTSA name the electrical system on the 1991 Ford F-150 — 16% of all complaints for this model year.
What owners report
“The truck wont crank. When the key is turned off and removed some electrical systems still work and cause smoking. I have had to disconnect the battery in fear the truck will burn down. Ford was contacted about the issue and said they cant do anything because their records for recalls only go 10…”
filed Mar 29, 2021
“Tl* the contact owns a 1991 ford f-150. The contact stated that the vehicle failed to start. The vehicle was towed to the dealer who stated the fuel pump failed. The vehicle was repaired but the failure recurred. The manufacturer was contacted about the failure. The failure mileage was 145,000. The…”
filed Jul 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 F-150 years
| Year | Reports | Share |
|---|---|---|
| 2025 F-150 | 22 | 22% |
| 2024 F-150 | 38 | 21% |
| 2023 F-150 | 80 | 20% |
| 2022 F-150 | 122 | 21% |
| 2021 F-150 | 125 | 13% |
| 2020 F-150 | 82 | 12% |
| 2019 F-150 | 98 | 8% |
| 2018 F-150 | 169 | 8% |
| 2017 F-150 | 126 | 9% |
| 2016 F-150 | 182 | 9% |
| 2015 F-150 | 167 | 10% |
| 2014 F-150 | 160 | 11% |
Other reported problem areas on the 1991 Ford F-150
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.