What is the engine failure of the 2021 Ford Explorer?
There is no single, universal “engine failure” defect tied to the 2021 Ford Explorer. Issues reported by owners vary by engine choice (2.3L EcoBoost, 3.0L EcoBoost, and a hybrid option) and are generally uncommon. The most frequently discussed problems involve oil consumption for the 2.3-liter engine and certain timing/valvetrain-related symptoms for the 3.0-liter variant, with Ford and safety regulators addressing some cases through recalls and warranties.
Engine options and specifications for the 2021 Explorer
The 2021 Ford Explorer offered multiple powertrains, reflecting a mix of performance and efficiency goals. Understanding these engines helps frame what kinds of failures might occur and how they manifest on the road.
- 2.3-liter EcoBoost inline-4 turbocharged engine — about 300 horsepower and 310 lb-ft of torque; standard on base and many trims
- 3.0-liter EcoBoost V6 twin-turbo engine — about 365 horsepower and 380 lb-ft of torque; available on higher trims for stronger performance
- Hybrid variant (where offered in certain markets) — 3.3-liter V6 Atkinson-cycle paired with electric motors; combined around 318 horsepower; typically paired with all-wheel drive
Across these options, Ford paired a 10-speed automatic transmission with either rear-wheel drive or all-wheel drive depending on configuration.
Reported engine-related problems by engine type
2.3-liter EcoBoost engine issues
Owners and regulators have reported a cluster of concerns tied to the 2.3L EcoBoost variant. While not universal, some drivers have encountered symptoms that prompted inspections under warranty or recall campaigns.
- Oil consumption warnings or low oil level indicators appearing sooner than expected
- Engine misfires or rough running leading to degraded acceleration or idle quality
- Abnormal engine noises or performance irregularities that can trigger diagnostic trouble codes
These issues are not described as a single, widespread defect, but they have been enough to prompt service campaigns and discussions about maintenance and monitoring for affected vehicles.
3.0-liter EcoBoost engine issues
For the 3.0L EcoBoost variant, consumers have reported a different set of symptoms that sometimes relate to engine timing and related components, among other potential causes.
- Unusual engine noises or vibrations that may accompany powertrain warnings
- Occasional loss of power or rough running, sometimes tied to sensor or fuel-system concerns
- Rare reports of timing-chain/tensioner or valvetrain-related anomalies in isolated cases
These reports reflect a smaller subset of Explorer owners and are not indicative of a universal failure mode across all 3.0L EcoBoost-equipped vehicles.
Recall and warranty actions tied to engine issues
Ford has engaged with regulators and issued recall campaigns and warranty coverage where relevant to address engine-related problems in the Explorer. The specifics depend on the VIN, model year, and exact engine configuration.
- Recall campaigns addressing potential engine-related components (oil systems, timing-related parts, or connected systems) and accompanying service bulletins
- Powertrain and related warranties that may cover repair or replacement of affected components within specified terms
- Guidance from Ford and NHTSA on how to verify recall status and arrange dealer visits for free remediation where eligible
Owners should check the official Ford recall database or the NHTSA Safer Cars site to confirm whether their vehicle is impacted and to follow up with their local dealer for eligibility and scheduling.
What owners can do to minimize engine failure risk
Proactive maintenance and attentive driving can reduce the likelihood of engine-related problems in the 2021 Explorer, regardless of which powertrain is installed.
- Keep up with the manufacturer’s maintenance schedule, including timely oil changes with the recommended grade and viscosity
- Monitor coolant levels and temperature; address overheating issues promptly with professional service
- Pay attention to warning lights (check engine, oil pressure, temperature) and seek service at the first sign of trouble
- Stay current on recalls and service campaigns; schedule dealer visits to address any campaign-related repairs
Early detection and prompt servicing can help prevent minor symptoms from developing into more serious engine problems.
Summary
The engine issue profile for the 2021 Ford Explorer is not defined by a single defect. Instead, it spans multiple powertrains—the 2.3L EcoBoost, the 3.0L EcoBoost, and the hybrid variant—each with its own set of reported concerns. Oil-consumption and performance irregularities have been the most commonly discussed topics for the smaller engine, while timing/valvetrain and related symptoms have appeared in some 3.0L cases. Ford has pursued recalls and warranty coverage where applicable, and owners are advised to stay informed about recalls, maintain proper oil and cooling system health, and seek prompt service if warning indicators arise. As with any used or aging vehicle, ongoing vigilance and proactive maintenance remain the best defenses against unexpected engine failure.
What is the most common problem with the 2021 Ford Explorer?
Transmission issues are among the most frequently reported problems with 2021-2025 Ford Explorers. These issues include harsh and jerky shifting, delayed gear engagement, and transmission slipping out of gear.
What is the problem with the Ford engine in 2021?
Ford and Lincoln are recalling nearly 91,000 models with the 2.7- and 3.0-liter EcoBoost engines that may fail. The recall affects 2021 to 2022 models with those engines, including the Ford F-150, Bronco, Explorer, and Edge; the Lincoln Aviator and Nautilus are affected too.
What is the recall on the 2021 Ford Explorer engine?
Summary: Ford Motor Company (Ford) is recalling certain 2021-2022 Bronco, F-150, Edge, Explorer, Lincoln Nautilus, and Lincoln Aviator vehicles equipped with either a 2.7L or 3.0L Nano EcoBoost engine. The engine intake valves may break while driving, which can result in engine failure and a loss of drive power.
What is the problem with the Ford Explorer EcoBoost engine?
Common Ford Explorer EcoBoost engine problems include coolant leaks causing overheating, particularly in the 2.0L engine, and fractured intake valves in the 2.7L and 3.0L engines, which can lead to engine failure. Other issues can include carbon buildup, turbocharger problems, and ignition issues, depending on the specific engine size and model year.
This video discusses the common problems with the 3.0L EcoBoost engine: 59s8020 AutomotiveYouTube · Feb 21, 2023
Coolant leaks
- 1.5L and 2.0L engines: A design flaw can cause coolant to leak into the combustion chamber, leading to misfires, smoke, and power loss. This is a recall-worthy issue, sometimes requiring a short or long block replacement.
- Older 1.0L engines: Some models built between 2011 and 2013 had coolant hose failures at high temperatures.
Intake valve issues
- 2.7L and 3.0L engines: Certain 2021-2022 models have a recall for brittle intake valves that can break, causing catastrophic engine failure. This can lead to a sudden loss of power.
- 2021-2022 Explorer ST: This model uses the 3.0L EcoBoost V6 and is affected by the intake valve recall.
Other potential problems
- Carbon buildup: Can lead to performance issues and misfires.
- Turbocharger problems: Issues can include failure or wastegate problems, especially in 2.0L engines, causing reduced power or stalling.
- Ignition issues: Can be related to calibration problems in older 3.5L engines. Ensure the engine control module (ECM) has the latest software updates.
- Timing chain wear: If oil change intervals are neglected, the timing chain and other components on 3.5L engines can wear out prematurely.
What to do
- For owners of affected vehicles: If your vehicle is under recall, contact a Ford dealer for a free inspection and repair.
- Regular maintenance: Perform oil changes on schedule, which is crucial for EcoBoost engines due to their tight tolerances and oil passages.
- Monitor performance: Pay attention to symptoms like smoke, misfires, overheating, or power loss and have the vehicle inspected by a qualified mechanic.
