Other engine problem on the 2003 Ford F-150
6 fires 6 of the 30 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When other engine problem gets reported
Owners of the 2003 Ford F-150 report other engine problem at a median of 65,000 miles. A quarter of the reports come in before 10,000 miles and a quarter after 130,000 miles, from 20 reports that carried an odometer reading.
A part like this is normally expected to survive 95,000 miles. It is the 5th most-reported problem on this model year.
The mileage distribution
The reported range runs from 900 miles at the tenth percentile to 205,000 miles at the ninetieth, a spread of 204,798 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
40% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 902 miles | 9,750 miles | 63,500 miles | 129,750 miles | 205,700 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 6 a fire is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 30 model years of this car. It shows up earliest on the 2024, at a median of 20,000 miles, and latest on the 2025 at 160,000 miles.
By volume the 2018 carries the most reports, with 411; the 2003 has 30. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
I have many problems with my 2003 ford f150 from engine noises to transmission leaking and slipping. My vehicle has been in twice now and nobody at fords or their engineers seem to know what is wrong. Fords does not know what to do. I would greatly appreciate if someone could look into this matter because no one should have this many problems with a brand new $30,000 vehicle.*ak
I have a 2003 f-150 supercrew 5.4l 2x4, from day one, a hollow knocking noise is heard at idle most noticeable when in gear at idle, or low RPM. I have had it into ford several times and nothing has been done. We even started another truck on the lot (same year, engine ect.) and the noise was not found on the other truck. The service manager states he does hear the noise but ford does not know what it is therefore they cannot fix it so no attempt has been made to find or repair it (my truck has not been on the rack even once). Please advise as to what I can do to resolve this problem. *la
Hollow knocking noise in the 5.4 engine most noticeable when cold. Ford and the dealer tell me to put up with it because it is normal. Something about piston clearances or slap. I did not pay $30,000.00 + for a new vehicle to listen to it knock in the mornings when I start it up. Ford is aware of this noise in the 5.4 and I would like someone to look into this because they are not willing to do anything about it. *la
Also reported on the 2003 Ford F-150
Misfire or rough idle
Other powertrain problem
Other electrical problem
Fuel tank, filler or EVAP failure
Other body or interior problem
Other wheel or tire problem
How far this goes
Complaints are voluntary, so 30 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other engine problem happen on the 2003 Ford F-150?
Across 20 owner reports that included an odometer reading, half were filed by 65,000 miles. A quarter were filed before 10,000 miles and a quarter after 130,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other engine problem on the 2003 Ford F-150?
30 reports have been filed with NHTSA, about 0.4 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed