2.7L EcoBoost early 'catastrophic' valve failures on some units.
- Typically appears
- Under 30,000 miles
- What to inspect
- Check for extended warranty coverage and any engine replacement history.

The reborn Bronco is a capable off-roader. Early builds had well-documented engine and hardtop quality issues.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
The most commonly reported faults on the 2021–2024 Ford Bronco are 2.7L EcoBoost early 'catastrophic' valve failures on some units, Hardtop delamination and roof squeaks/leaks and 7-speed manual or 10-speed auto shift quality complaints. 1 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
Based on the documented faults on this page for the Ford Bronco.
Guidance only · reflects reported patterns, not a specific car's condition.
Which faults an average example has usually reached depends on its age. Pick a model year for the faults that matter on that build.
2.7L EcoBoost early 'catastrophic' valve failures on some units.
Hardtop delamination and roof squeaks/leaks.
7-speed manual or 10-speed auto shift quality complaints.
SYNC 4 infotainment freezes and camera faults.
Generate a full, tickable pre-purchase checklist tailored to this exact vehicle · add photos and notes as you inspect. Try it free.
Check this exact carLater builds improved, but early 2021 cars had engine and hardtop issues — check history carefully.
Some 2.7L EcoBoost units suffered valve failures; confirm warranty or repair records.
Engine history, hardtop condition, transmission feel and infotainment.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.