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Used Ford F-150: years to avoid and what to check

By Don't Buy Blind · Updated October 30, 2026 · Sources listed below

The F-150's problem years are mostly tied to particular engines and transmissions: the 2004–2008 5.4L 3-valve V8 (spark plugs that break on removal, and noisy cam phasers), the 2011–2013 6-speed automatic (recalled for sudden downshifts into first gear), and the 2017–2020 3.5L EcoBoost (cold-start rattle from the cam phasers), plus harsh-shift complaints about the 10-speed from 2017 on. Knowing the exact engine and transmission matters as much as the year.

F-150 years with known problems

YearsProblemFord's responseStatus for a used buyer
2004–2008, 5.4L 3V V8Two-piece spark plugs seize and break during removal. Cam phaser noise is common too.TSB 08-7-6: special removal procedure and toolsAsk when the plugs were last changed, and by whom
2011–2013, 6-speed automaticSudden, unintended downshift to first gear at speedRecalls 16V-248, 19V-075 and 19V-433: transmission softwareFree if still open. Check the VIN.
2017–2020, 3.5L EcoBoostRattle on cold start from the cam phasers (VCT units)TSB 20-2191 (replace all four VCT units). Extra coverage under program 21N03 ended January 1, 2023.Expired. Check records. Updated parts arrived for 2021.
2017–2020+, 10R80 10-speedHarsh or erratic shifts, clunksTSBs with software reprogramming. Class actions filed in the US and Canada.Test drive carefully

2004–2008: the 5.4L 3-valve

Ford's TSB 08-7-6 acknowledges that on 2004–2008 F-150s with the 5.4L 3-valve engine, the spark plugs can be hard to remove, and part of the plug can break off and stay in the cylinder head. It's a known, fixable job, but expensive if it goes wrong. These engines are also known for cam phaser and timing noise, a diesel-like ticking at idle. Ask for receipts for the last plug change and any timing work, and listen at a warm idle.

Check the VIN on the car you're looking at

See where it was built and its model year, then check its title history for salvage, flood, odometer and theft records.

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Opens EpicVIN in a new tab. You see a free summary before paying anything. Best for vehicles with US history. Paid link: we earn a commission if you buy a report, at no extra cost to you.

No VIN yet? Ask the seller to text it to you before you drive out. A bad history saves you the trip.
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2011–2013: the downshift recall

Ford recalled 2011–2012 F-150s with the 6R80 six-speed automatic in 2016, then expanded the recall to 2011–2013 trucks in 2019 (about 1.26 million US trucks in that expansion), because a failing speed-sensor signal could cause an unexpected downshift into first gear. Depending on speed, that can make the rear wheels lock or slide. The fix is a free software update. Confirm it's done by VIN.

2017–2020: EcoBoost rattle and the 10-speed

Ford's TSB 20-2191 tells dealers to replace all four VCT (cam phaser) units and reprogram the engine computer on affected 2017–2018 3.5L EcoBoost trucks with a rattle on cold start. That's about a 10-hour job. Start the truck cold if you can (ask the seller not to warm it up) and listen for a few seconds of rattle. The 10R80 10-speed has drawn several class actions over harsh shifting in the US, and a proposed class action was filed in Canada in 2025. On the test drive, feel for clunks from 1st to 3rd gear and when coasting down to a stop.

Things that apply to any F-150

  • Work history: towing, plowing and fleet use wear out transmissions and suspensions. Look for a hitch, worn bed liner, and fleet or rental use on the history report.
  • Aluminum body (2015+): repairs need an aluminum-certified shop. Check panel gaps and paint for signs of poor bodywork.
  • Rust: frame, cab corners and rocker panels on older steel-body trucks.
  • 4x4: engage 4H and 4L during the test drive.
  • Theft and cloning: full-size pickups are among the most stolen vehicles. Make sure the VIN on the dash, door and paperwork all match.

Whatever the year, run the VIN before you go. Check the title history and the recall status in the US at nhtsa.gov/recalls, or in Canada with Transport Canada. Open recalls are fixed free at a dealer. Then check our Still covered? tracker for warranty extensions that might still apply.

Questions

What F-150 years should I avoid?

Be most careful with 2004–2008 trucks with the 5.4L 3V, 2011–2013 trucks with the 6-speed (check the recall), and 2017–2020 3.5L EcoBoost trucks (cam phasers).

Is the F-150 10-speed transmission reliable?

Many are fine, but harsh-shift complaints have led to several lawsuits. Drive it with the transmission cold and warm before you buy.

Was the EcoBoost cam phaser problem fixed?

Ford issued bulletins to replace the units on affected trucks, and updated the parts for 2021. Ask for records showing the work was done.

Sources

General information, not legal advice. Rules change, so check the official source before you rely on a detail.

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