2003 Ford F-150 electrical system problems
46 owner complaints filed with NHTSA name the electrical system on the 2003 Ford F-150 — 11% of all complaints for this model year.
What owners report
“The engine continues to shoot out the spark plugs. This is continued to happen with different cylinders. I’ve had it at the mechanic most of the time I’ve owned it.”
filed Aug 6, 2025
“Our truck has been great but we have a major problem. It is leaking water when it rains. Getting front floor carpet wet and now it is getting the fuse box wet and causing electrical systems to not work. Like today the odometer won't light up. Also dripping from top of windshield. We are having the…”
filed Oct 17, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Water-in-fuel (wif) lamp on. *tt
06310 · Service Bulletin/Repair Instructions · issued Jan 1, 2006
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 2003 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.