2004 Ford Mustang Engine Problems
- Complaints
- 3about this part
- Share
- 3%of 116 total for the year
- Median mileage
- 83,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2004 Ford Mustang, 3% of the 116 complaints for this model year. Where a mileage was given, the median is 83,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The spark plugs have a tendency to blow out. An explosion makes the plug strip the threads and do damage to the head. There is also potential for fire as fuel vapor is then release directly into the engine compartment.”
NHTSA complaint #11006037, filed 2017-07, 91,000 miles“The contact owns a 2004 Ford Mustang. The contact stated that while driving, a loud noise was heard coming from under the vehicle. The contact took the vehicle to a repair shop where they advised that the air compressor condensation dripped onto the exhaust pipe and the exhaust piped needed to be re-welded. The vehicle was repaired. The contact notified the manufacturer and was advised that there were no recalls for the vehicle or the failure. The failure mileage was 75,000.”
NHTSA complaint #10465996, filed 2012-07, 75,000 milesRelated service bulletins
- 10109070Sep 21, 2016The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 38% |
| 2025 | 3 | 16% |
| 2024 | 10 | 12% |
| 2023 | 2 | 13% |
| 2022 | 5 | 10% |
| 2021 | 8 | 15% |
| 2020 | 25 | 21% |
| 2019 | 53 | 35% |
| 2018 | 59 | 30% |
| 2017 | 27 | 10% |
| 2016 | 76 | 20% |
| 2015 | 51 | 12% |
| 2014 | 18 | 5% |
| 2013 | 22 | 8% |
| 2012 | 30 | 6% |
| 2011 | 48 | 10% |
| 2010 | 8 | 3% |
| 2009 | 3 | 2% |
| 2008 | 6 | 2% |
| 2007 | 15 | 2% |
| 2006 | 11 | 3% |
| 2005 | 19 | 3% |
| 2004 | 3 | 3% |
| 2003 | 6 | 4% |
| 2002 | 4 | 3% |
| 2001 | 2 | 1% |
| 2000 | 3 | 1% |
| 1999 | 1 | 0% |
| 1998 | 1 | 0% |
| 1997 | 2 | 1% |
| 1996 | 2 | 1% |
| 1995 | 1 | 0% |
| 1994 | 2 | 1% |
| 1989 | 1 | 1% |
| 1986 | 1 | 3% |
Other parts of the 2004 Ford Mustang
33 complaintsOther or unknown
15 complaintsAir bags
9 complaintsBrakes
9 complaintsTransmission and drivetrain
9 complaintsSuspension
7 complaintsEngine cooling
6 complaintsFuel system
6 complaintsTires
6 complaintsEquipment
4 complaintsBody and structure
4 complaintsElectrical system
3 complaints
← All problems reported for the 2004 Ford Mustang
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology