Fuel pump failure on the 2000 Mercury Cougar
3 fires 3 of the 37 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 fuel pump failure gets reported
Owners of the 2000 Mercury Cougar report fuel pump failure at a median of 82,500 miles. A quarter of the reports come in before 40,000 miles and a quarter after 97,500 miles, from 26 reports that carried an odometer reading.
A part like this is normally expected to survive 85,000 miles. It is the 2nd most-reported problem on this model year.
The mileage distribution
The reported range runs from 32,500 miles at the tenth percentile to 110,000 miles at the ninetieth, a spread of 77,500 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.
19% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 32,500 miles | 40,000 miles | 82,150 miles | 97,447 miles | 110,000 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, 3 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 $600–$2,600 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 4 model years of this car. It shows up earliest on the 1999, at a median of 45,000 miles, and latest on the 2000 at 82,500 miles.
By volume the 2000 is the worst of them, which makes this a problem of this specific year rather than of the model as a whole.
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.
Every year approximately the same time, the fuel pump in my 2000 cougar goes out. I reported this problem to ford corp. Every time. On june 14, 2001 I mailed a letter to them stating the continuous problem with the fuel pump in the cougar. The first time wasmarch 25, 2001 - while driving my car home form church, my car stopped in the middle of the street. I had the car towed to winner lincoln-mercury, they replaced the fuel pump and returned it to me on march 29, 2001. 2nd time on april 26, 2002 while driving home from work, my car just stopped in the middle of traffic. I called for a tow truck to tow the vehicle to winner lincoln-mercury again. Winner replaced the fuel pump again and returned the car to me on april 29, 2002, approximately a year after the first fuel pump was replaced, winner replaced the fuel pump again. 3rd time on april 21, 2003 the car stopped on my way home from work. I had it towed to ryan lincoln mercury who replaced the fuel pump again. Approximately a year from the last one replaced...... *nlm
On occasion, the car has lost power in traffic, which has resulted in loss of power steering and power brake control. The dealership has diagnosed the conditions resulting in power loss as a problem with the fuel pump. This problem has progressively worsened.*jb
On occasion, the car has lost power in traffic, which has resulted in loss of power steering and power brake control. The dealership has diagnosed the conditions resulting in power loss as a problem with the fuel pump. This problem has progressively worsened.*jb
Also reported on the 2000 Mercury Cougar
Alternator or charging system failure
No-start or intermittent start failure
Other electrical problem
Other engine problem
Sunroof failure or glass breakage
Other speed control problem
How far this goes
Complaints are voluntary, so 37 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 fuel pump failure happen on the 2000 Mercury Cougar?
Across 26 owner reports that included an odometer reading, half were filed by 82,500 miles. A quarter were filed before 40,000 miles and a quarter after 97,500 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is fuel pump failure on the 2000 Mercury Cougar?
37 reports have been filed with NHTSA, about 0.6 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