2021 Ford Mustang Fuel System Problems
Fuel System complaints account for 15 of 55 total complaints (27%) filed on the 2021 Ford Mustang, the highest share of any model year in this dataset. Most link to recall 25V455000, involving the low pressure fuel pump and a PCM update, with median mileage at failure of 9,000 miles.
- Fuel System complaints
- 15
- 27% of 55
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 9,000 mi
- Related recalls
- 1
Typical fuel system symptoms owners report
- Vehicle hesitates or vibrates when the accelerator pedal is depressed, sometimes tied to the low pressure fuel pump recall.
- Engine stalls or loses power at highway speed, including while cruise control is active, sometimes followed by a rough idle and check engine light.
- Vehicle experiences vapor lock and hesitation during stop-and-go traffic or after refueling with warm fuel, in one case causing an engine misfire.
- Owners report waiting extended periods, including six months, for recall parts to become available while experiencing intermittent loss of motive power.
- Engine misfires and fails to respond as needed while driving at various speeds, with the check engine light illuminated.
When 2021 Ford Mustang fuel system complaints were filed
First complaint Dec 21, 2023, latest Jun 22, 2026.
Fuel System recalls for the 2021 Ford Mustang
- NHTSA 25V455000Jul 7, 2025Fuel System850,318 vehicles
Fuel system, gasoline:delivery:fuel pump
Ford Motor Company (Ford) is recalling certain 2021-2023 Bronco, Explorer, Lincoln Aviator, F-250 SD, F-350 SD, F-450 SD, F-550 SD, 2021-2022 Lincoln Navigator, Mustang, F-150, and 2022 Expedition vehicles. The low-pressure fuel pump may fail, which can result in an engine stall while driving.
Risk: An engine stall increases the risk of a crash.
Remedy: Dealers will replace the low pressure fuel pump on super duty vehicles and update the powertrain control module (PCM) software on all other affected vehicles, free of charge. Owner notification letters were mailed July 27, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S75.
Fuel System complaints by Mustang model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- Does the 2021 Ford Mustang have a fuel system recall?
- Yes. Recall 25V455000, reported July 7, 2025, covers the low pressure fuel pump on the 2021-2022 Mustang and other Ford models. Dealers replace the fuel pump and update the powertrain control module.
- How common are fuel system problems on the 2021 Ford Mustang?
- NHTSA lists 15 Fuel System complaints for the 2021 Mustang, which is 27% of the 55 total complaints filed for that model year, the highest share among all Mustang model years in this dataset.
- At what mileage do 2021 Mustang fuel system problems occur?
- The median mileage at failure for Fuel System complaints on the 2021 Mustang is 9,000 miles, though individual complaints range from very low mileage to over 44,000 miles.
- What symptoms do 2021 Mustang owners report with the fuel system?
- Owners describe hesitation when accelerating, stalling at highway speed, vapor lock in stop-and-go traffic, and engine misfires, many of which they connect to recall 25V455000.