2003 Ford Mustang engine and engine cooling problems
39 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Ford Mustang — 27% of all complaints for this model year.
What owners report
“Tl* the contact owns a 2003 ford mustang. The contact stated that black micro fibers were emitted into the vehicle from the vents through the air conditioning system. The dealer advised the contact to bring the vehicle in for diagnostic testing but the vehicle was neither diagnosed nor repaired…”
filed Nov 1, 2011
“All technical service bulletin stating that vehicles built before 12/19/04 have this problem. A engine cylinder with no compression. Ford is aware but does not want to do anything about it. If fact they want the damaged part return and it's not for a core exchange since the new part has to be brand…”
filed Mar 30, 2009
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes f-53 motorhome chassis. Updated 2/23/10…
07212 · Service Bulletin/Repair Instructions · issued Oct 1, 2007Engine misfire with diagnostic trouble code (dtc) pewee, p0302, p0303, p0304, p0305, p0306, p0307, p0308, and p0316. *tt
06513 · Service Bulletin/Repair Instructions · issued Jan 1, 2006Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running. *tt
041601 · Service Bulletin/Repair Instructions · issued Nov 14, 2005Exhaust leak - cracked or separated right side exhaust pipe - 3.8l and 3.9l engines. *tt
041003 · Service Bulletin/Repair Instructions · issued Nov 1, 2004
Engine and Engine Cooling problems in other Mustang years
| Year | Reports | Share |
|---|---|---|
| 2022 Mustang | 1 | 2% |
| 2021 Mustang | 2 | 4% |
| 2020 Mustang | 3 | 3% |
| 2019 Mustang | 11 | 8% |
| 2018 Mustang | 8 | 4% |
| 2017 Mustang | 8 | 3% |
| 2016 Mustang | 7 | 2% |
| 2014 Mustang | 1 | 0% |
| 2013 Mustang | 1 | 0% |
| 2012 Mustang | 3 | 1% |
| 2011 Mustang | 7 | 2% |
| 2010 Mustang | 4 | 2% |
Other reported problem areas on the 2003 Ford Mustang
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.