Ford F-150
2021 Ford F-150
First year of the fourteenth generation. Trims run XL, XLT, Lariat, King Ranch, Platinum and Limited, in Regular Cab, SuperCab and SuperCrew bodies with three bed lengths. New for this year were the fold-flat Interior Work Surface shifter, the optional Pro Power Onboard generator, and the PowerBoost hybrid available on every trim from XL up.
Overview
The 2021 F-150 is a first-year truck, and that framing matters more than the marketing. The frame, suspension, cab structure and most of the powertrain carried over from the 2015–2020 truck, so this is not a clean-sheet vehicle. What is genuinely new is the interior, the electrical architecture, the fold-flat shifter, the optional onboard generator, and the PowerBoost hybrid — and first-year problems on this truck have clustered in exactly those new areas rather than in the mechanical hardware.
Six engines were offered, which is more choice than any competitor. The 2.7-liter EcoBoost is the sensible volume pick: it makes 400 lb-ft, tows more than most owners need, and uses both port and direct injection so intake valve carbon is not a concern. The 5.0-liter V8 is the choice for people who want fewer heat-cycled components and a simpler engine bay. The PowerBoost hybrid is the most interesting and the most expensive — 430 horsepower, a usable 7.2 kilowatts of onboard power, and the ability to run a job site or a house from the bed.
The aluminum-alloy body carried over and remains a real advantage in road-salt states, where steel-bodied trucks rot through the bed sides and rear arches. The trade-off is collision repair: aluminum panel work needs a separately certified shop with isolated tooling, which raises body shop costs and, in some markets, insurance premiums. This has no effect on mechanical repair costs at all — those remain the lowest in the segment because every shop in America works on these.
The dominant owner complaint on this generation is the 10R80 10-speed automatic, and it is not a reliability failure so much as a refinement one. Harsh 1-2 upshifts, a clunk when the truck rolls to a stop and reselects first, and gear hunting on rolling grades are all widely reported. Ford has addressed much of it through transmission control software updates.
Reliability & running costs
Mechanically sound and easy to service, held back by first-model-year electronics and a transmission that draws more complaints than anything else on the truck. Parts and labor are the cheapest in the full-size segment, which offsets a higher rate of small annoyances.
- Reliability score
- 3.0 / 5
- Maintenance + repairs, per year
- $700–$1,300 maintenance and repairs per year
Recalls
Several safety recalls have applied to 2021 F-150 trucks, and applicability is determined by VIN and build date rather than model year. Enter your VIN in the NHTSA recall lookup or ask a Ford dealer to check it before assuming your truck is clear. Recall repairs are always performed free of charge.
Known issues on the 2021 Ford F-150
Reported by owners of this model year specifically — not generic advice.
- ModerateTypically 20,000–70,000 milesCam phaser rattle on cold start (5.0L V8)A two to four second metallic rattle on startup from the variable cam timing phasers, widely reported across 2018–2022 Coyote-powered F-150s.Typical fix $2,500–$4,000
- ModerateTypically 5,000–60,000 milesHarsh, clunky or hunting shifts from the 10-speed automaticThe 10R80 draws more owner complaints than any other component on this truck — harsh 1-2 shifts, a clunk on rollback to a stop, and constant gear hunting on grades.Typical fix $0–$3,000
- ModerateTypically Any mileage; climate-drivenEcoBoost stumble and misfire in humid or damp conditionsCondensation collects in the air-to-air intercooler and gets pulled into the engine in a slug under hard acceleration, producing a momentary misfire.Typical fix $0–$400
- ModerateTypically 30,000–60,000 miles, sooner on trucks that towBrake shudder under load or after towingA 5,000-pound truck with a trailer behind it puts far more heat into its rotors than a car does, and thickness variation develops accordingly.Typical fix $400–$800 per axle
- ModerateTypically 30,000–60,000 miles, or 3–4 yearsNo crank or a dash full of warnings, usually the AGM batteryAuto start-stop cycles the battery constantly, and the AGM units fitted to 2021 trucks commonly fail earlier than owners expect.Typical fix $250–$700
- HighTypically Any mileage; more common in wet climates and after pressure washingPowered tailgate releasing on its ownWater intrusion into the tailgate wiring harness can trigger the release latch, and owners have reported tailgates opening while driving.Typical fix $0–$700
Engines offered
| Engine | Layout | Output | Fuel |
|---|---|---|---|
| 2.7L EcoBoost2.7L | V6, twin-turbocharged, port and direct injection | 325 hp | gasoline |
| 5.0L Coyote5.0L | V8, naturally aspirated, port and direct injection | 400 hp | gasoline |
| 3.5L PowerBoost3.5L | V6, twin-turbocharged with 35kW electric motor in the transmission | 430 hp | hybrid |
Service schedule
What this vehicle needs and roughly when.
10,000 miles / 12 months (or when the oil life monitor calls for it)
- Engine oil and filter change — 5W-30 on the 5.0L and 3.3L, 5W-30 on the 2.7L and 3.5L EcoBoost
- Rotate tires and inspect for irregular wear
- Inspect brake pads, rotors, lines and parking brake
20,000 miles
- Replace cabin air filter
- Inspect the engine air filter
- Inspect the cooling system, hoses and charge air cooler plumbing
30,000 miles
- Replace the engine air filter
- Inspect the exhaust system and heat shields
- Inspect suspension, ball joints, steering linkage and driveshaft
- Change front axle and transfer case fluid if used for towing or off-road
60,000 miles
- Replace spark plugs on 2.7L and 3.5L EcoBoost engines
- Change rear axle fluid on trucks used for towing
- Replace transmission fluid under severe-duty use — towing, plowing or heavy stop-and-go
100,000 miles / 6 years
- First engine coolant flush with Motorcraft orange prediluted coolant
- Replace spark plugs on the 5.0L V8
- Replace the serpentine belt and inspect the tensioner
150,000 miles
- Replace transmission fluid and filter under Ford's normal-duty schedule with MERCON ULV
- Replace rear axle fluid on non-towing trucks
- Inspect the turbochargers and their oil supply lines on EcoBoost engines
Codes this vehicle sets most often
Where the same code has a vehicle-specific root cause.
- P0300
Random misfire with no cylinder-specific code on an EcoBoost truck, appearing only in damp weather, usually means intercooler condensation rather than an ignition fault. On the 5.0L V8 with a cold-start rattle, the same code points at cam phaser wear. Read the P0300 guide.
- P0301
Cylinder 1 misfire on the 5.0L is most often a failed coil-on-plug. Ford's coils are individually replaceable and inexpensive; replacing all eight at once is common practice past 100,000 miles. Read the P0301 guide.
- P0171
Lean bank 1 on a 2.7L or 3.5L EcoBoost is very often a loose or split charge-air cooler hose clamp rather than an intake leak. Have the shop pressure-test the boost plumbing before touching the mass air flow sensor. Read the P0171 guide.