1991 Ford F-450 SD Engine cooling Problems
- Complaints
- 4about this part
- Share
- 67%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 1991 Ford F-450 SD, 67% of the 6 complaints for this model year.
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.
“Consumer has had several problems with vehicle. Rear axle/flywheel and clutch pressure plates have all been replaced 3 times each. Dealer says it doesn't seem to be a nation wide problem, but admitts there is a problem with the vehicle.”
NHTSA complaint #865432, filed 2000-07“Engine started smoking, but not overheating. Mixing oil & antifreeze due to pinhole in engine block. Took to dealer ('96) & re-manufactured engine (not new) was put in. Problem temporarily solved. Has now reoccurred. Manufacturer said pinhole problem fixed.”
NHTSA complaint #824754, filed 1998-06Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 11% |
| 2011 | 2 | 33% |
| 2008 | 28 | 41% |
| 2007 | 2 | 13% |
| 2006 | 9 | 26% |
| 2005 | 5 | 13% |
| 2004 | 7 | 21% |
| 2003 | 4 | 25% |
| 2002 | 2 | 14% |
| 2001 | 2 | 9% |
| 2000 | 5 | 12% |
| 1999 | 8 | 12% |
| 1993 | 2 | 40% |
| 1991 | 4 | 67% |
Other parts of the 1991 Ford F-450 SD
2 complaintsTransmission and drivetrain
2 complaintsSeats
1 complaintsSteering
1 complaintsTires
1 complaints
← All problems reported for the 1991 Ford F-450 SD
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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