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2021 Ford Mustang fuel system problems

moderate 10 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →

Complaints
10
Recalls
0
Avg fix
$1,200

When does it fail?

Of the 10 fuel system complaints filed for the 2021 Ford Mustang, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.

0-25k
1 (50%)
25-50k
1 (50%)
50-75k
0 (0%)
75-100k
0 (0%)
100-125k
0 (0%)
125-150k
0 (0%)
150k+
0 (0%)

Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.

What stands out

Fuel system accounts for 19% of all owner complaints filed against this vehicle, across 6 categories tracked.

What owners are reporting 4 most recent

fuel system · filed 12/23/2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline). The contact stated that while the vehicle was stopped and the accelerator pedal was depressed on several occasions, the vehicle hesitated to accelerate as intended. The contact stated that there were no warning lights illuminated. The vehicle was not diagnosed or…

fuel system · 5,000 mi · filed 12/15/2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (FUEL SYSTEM, GASOLINE); however, the part to do the recall repair was not yet available. The contact stated that while driving in stop-and-go traffic, the vehicle hesitated. The contact pulled into a gas station where the vehicle experienced vapor lock. The vehicle failed to restart, with…

fuel system · filed 12/10/2025

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, parts were not yet available for the recall repair. The contact stated that parts had not yet been available for six months. The contact was concerned that the vehicle could lose motive power while driving at 65 MPH. The contact stated that if the failure…

fuel system · 44,000 mi · filed 10/22/2025

The contact owns a 2021 Ford Mustang. The contact stated that while depressing the accelerator pedal, the vehicle hesitated and then vibrated. The contact stated that the failure only occurred while attempting to accelerate. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline). However, when the dealer was contacted,…

Had fuel system trouble with your 2021 Ford Mustang? File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.

Common questions

How serious is the fuel system problem on the 2021 Ford Mustang?

It's a documented issue but not catastrophic. 10 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.

At what mileage does the fuel system typically fail?

Based on the 10 complaints filed, fuel system issues most often appear around 23,205 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.

What does it cost to fix?

Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.

Are there any recalls related to fuel system?

No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.

Related

Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database. Verify the raw federal record at nhtsa.gov/vehicle/2021/Ford/Mustang. Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are independent-shop national averages and may differ in your area. Some links on this page are affiliate links.
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