IllustrationI STARTED THE CAR UP TO DRIVE OUT OF THE GROCERY PARKING LOT AND THE CAR WAS SPUTTERING. WHEN I PULLED ONTO THE MAIN HIGHWAY IT SPUTTERED AND COMPLETELY STOPPED RUNNING. I COASTED TO THE SIDE OF THE ROAD WHERE IT FAILED TO RESTART. *KB
2004 Ford Mustang Gt
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Mustang Gt years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 11 of 14 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
4 crash reports0 fire reports3 injury reports
Engine And Engine Cooling complaints
3 reportsON MULTIPLE OCCASIONS THE NUMBER FIVE SPARK PLUG KEEPS BLOWING OUT OF THE HEAD. THE CAR HAS MOTORCRAFT SPARK PLUGS AND ARE TORQUED TO THE FACTORY SPECIFICATIONS. WHILE LOOKING INTO THE PROBLEM ONLINE I FOUND OUT THAT IM NOT THE ONLY PERSON HAVING THIS PROBLEM. THE CRAZY THING IS THAT ITS IS ONLY HAPPENING WITH THE NUMBER FIVE PL…
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ON MULTIPLE OCCASIONS THE NUMBER FIVE SPARK PLUG KEEPS BLOWING OUT OF THE HEAD. THE CAR HAS MOTORCRAFT SPARK PLUGS AND ARE TORQUED TO THE FACTORY SPECIFICATIONS. WHILE LOOKING INTO THE PROBLEM ONLINE I FOUND OUT THAT IM NOT THE ONLY PERSON HAVING THIS PROBLEM. THE CRAZY THING IS THAT ITS IS ONLY HAPPENING WITH THE NUMBER FIVE PLUG. *TR
I OWN A 2004 MUSTANG WITH A 4.6 DOHC ENGINE. LAST NIGHT THE SPARK PLUG BLEW OUT OF THE HEAD. THE HEAD NOW NEEDS TO BE REPAIRED BY USING A HELICOIL OR SOMETHING SIMILAR. THIS IS A HUGE PROBLEM WITH THE FORD MODULAR ENGINES, CAUSED BY POOR DESIGN. AT LEAST 75% OF THE PEOPLE I KNOW WHO OWN FORDS WITH MODULAR ENGINES HAVE HAD THIS P…
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I OWN A 2004 MUSTANG WITH A 4.6 DOHC ENGINE. LAST NIGHT THE SPARK PLUG BLEW OUT OF THE HEAD. THE HEAD NOW NEEDS TO BE REPAIRED BY USING A HELICOIL OR SOMETHING SIMILAR. THIS IS A HUGE PROBLEM WITH THE FORD MODULAR ENGINES, CAUSED BY POOR DESIGN. AT LEAST 75% OF THE PEOPLE I KNOW WHO OWN FORDS WITH MODULAR ENGINES HAVE HAD THIS PROBLEM. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.