1999 Ford Mustang Convertible Engine cooling Problems
- Complaints
- 2about this part
- Share
- 22%of 9 total for the year
- Median mileage
- 106,750miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 1999 Ford Mustang Convertible, 22% of the 9 complaints for this model year. Where a mileage was given, the median is 106,750 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.
“Spark plug blow out. There was really nothing that LED up to this that I know of. Apparently this is something that happens a lot to Ford vehicles (I have a 99 mustang v8). Ford recommended a new head ($2000). An alternative was to retape the head ($800).”
NHTSA complaint #10225907, filed 2008-04, 106,500 miles“The contact stated while driving 35mph, the check engine and coolant light illuminated. The contact pulled over and after initial inspection determined coolant had leaked from the intake manifold. The vehicle was driven to the dealership who determined the intake manifold was fractured. The manufacturer was alerted.”
NHTSA complaint #10166210, filed 2006-08, 107,000 milesRelated service bulletins
- 10026389May 16, 2008Ford: certain 1999-2001 model year vehicles up to 6000 lb gvwr registered in new york and certain 2001 vehicles up to 6000 lb gvwr registered in the state of maine, certified for…
Engine cooling: other model years
Other parts of the 1999 Ford Mustang Convertible
3 complaintsExterior lighting
2 complaintsBrakes
1 complaintsEngine
1 complaintsFuel system
1 complaintsSeat belts
1 complaints
← All problems reported for the 1999 Ford Mustang Convertible
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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