What ownership is like, what breaks at what mileage, what the repairs cost, and what to check before you buy one.
NHTSA complaints per catalog listing fall steeply across this generation, from 34.8 for 1997 (2,991 complaints across 86 listings) to 2.3 for 2003 (464 across 198). The generation median is 11.8. 1997 sits at 2.9 times that median, but only 7 of 56 enriched ads (12.5%) mention a problem against a 23.6% generation median, so our rule does not flag it. The one engine pattern with sources behind it is the two-valve plug thread problem, below.
| Miles | Item | Cost | Notes |
|---|---|---|---|
| Not verified | Spark plug blowout on the 2V 4.6L/5.4L V8 (plug ejects from the aluminum head) | A forum poster reports $450 to fix one bad plug thread; a do-it-yourself thread-insert kit is about $250 (video). No shop price list for a blown-out plug found. | The repair people describe is a steel thread insert (Time-Sert or Cal-Van style kits) installed on the truck, without pulling the head or intake manifold (Bryan's Garage). Before buying, ask whether any plug has ever been replaced and by whom, and look for a plug that sits crooked or shows oil or soot around the well. |
| any | Fuel tank mounting recall (11V385000, 1997-2003 F-150 plus 2004 Heritage) | Free at a Ford dealer when the recall is open | The recall concerns how the fuel tank is mounted. Check by VIN at nhtsa.gov/recalls that it was done, especially on a truck that spent winters in a salt-belt state. |
| any | Speed-control deactivation switch recalls (05V017000, 07V078000) | Free at a Ford dealer when open | NHTSA says the switch may overheat; 05V017000 also describes smoke or burning. Confirm both by VIN. |
No year in this generation was flagged. A year is flagged by our rule only when all three hold: (1) its NHTSA complaints per catalog listing is at least 2.0x the median for its generation, (2) the share of ads that mention a problem is above the generation median, and (3) we track at least 30 listings for that year. The cutoff was fixed before we looked. Ad mentions are not failures, and a flag is a reason to inspect harder, not a verdict on any one car.
| Year | Complaints | Top components | |
|---|---|---|---|
| 1997 | 2,991 | Engine And Engine Cooling, Tires, Structure | |
| 1998 | 1,457 | Fuel System, Gasoline, Engine And Engine Cooling, Tires | |
| 1999 | 1,167 | Engine And Engine Cooling, Fuel System, Gasoline,... | |
| 2000 | 1,215 | Vehicle Speed Control, Electrical System, Engine And... | |
| 2001 | 1,347 | Engine And Engine Cooling, Vehicle Speed Control,... | |
| 2002 | 957 | Engine And Engine Cooling, Vehicle Speed Control,... | |
| 2003 | 464 | Engine And Engine Cooling, Power Train, Electrical System |
source: NHTSA complaints database (api.nhtsa.gov). Complaints are owner reports, not confirmed failures.
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We don't tell you to skip a year; we flag it by a fixed rule (see 'Years flagged' in each generation), and exactly one F-150 year trips it: 2004. That year has 7.57 NHTSA complaints per catalog listing (2,036 across 269 listings) against a Gen 11 median of 1.65, and ads mention a problem in 28 of 184 enriched ads (15.2%) against a 9.6% median, with the 'rust' flaw excluded from the count. Two more years come close on the first test and fail the second. 2005: 3.76 complaints per listing (2.3 times the Gen 11 median), but with rust excluded only 15 of 199 ads (7.5%) mention a problem against a 9.6% median. 2011: 4.92 complaints per listing against a Gen 12 median of 2.40 (2.05 times), but 15 of 317 ads (4.7%) against a 4.8% median. Ad mentions are not confirmed failures.
It depends on the engine and generation. Gen 10 (1997-2003): spark plugs that blow out of the two-valve V8's head. Gen 11 (2004-2008): spark plugs that break on removal in the 5.4L 3V, plus visibility complaints on 2004. Gen 12 (2009-2014): timing-chain stretch on 2011-2014 3.5L EcoBoost trucks. Gen 13 (2015-2020): cam phasers on the 3.5L and shift complaints on the 10-speed. Gen 14 (2021 on): recalls more than wear. Each is priced, with sources, in the generation sections.
On the 5.4L 3V (2004-2008 trucks), the two-piece plug can snap during removal. Dwells Automotive puts a trouble-free job at $300-$500, one or two broken plugs at $800-$1,000, and four or more at $1,200-$1,500+. Ford's interval is 100K miles, and the same source suggests pulling them near 80K. RepairPal's standard-job estimate is $299-$391; RepairPal members have filed 50 reports about plugs that are hard to remove.
For 2011-2014 trucks with a P0016 code, Go-Parts gives $2,000-$4,000+ for the chain job, and says wear often shows up between 70K and 100K miles. For 2017-2020 trucks with cold-start rattle, Autos of Chicago quotes phasers at $2,400-$2,750 at a specialist and $3,800-$4,500 at a dealer, with a full timing overhaul at $2,850-$3,200 and $4,600-$5,200+. Owner posts range from $4,310 (2024) to a $5,300 dealer quote (2023). These are shop and owner figures, not a quote for your truck.
Owners and shops report harsh shifts on 10R80 trucks (2017 and later). ShopEarl lists remanufactured units at $3,530-$5,158 before labor and a reflash at 0.8-1.6 labor hours; a March 2025 bulletin (TSB 25-2126) covers a clutch cylinder. We don't have a failure rate, only these reports, plus recalls 17V671000, 18V213000 and 22V188000 that cover linkage pins and a false pressure code. Ask for service records.
Our complaint-per-listing figures are measured against each generation's own median, so compare within a generation, not across. Within Gen 13, the range is 0.68 (2020) to 2.54 (2015); within Gen 14, 1.09 (2022) to 1.62 (2021), and our data has no complaint count for 2023 onward. No year in Gen 10, 12, 13 or 14 trips our rule.