Ford acknowledged a cylinder head crack/oil leak issue on 2020–2021 1.5T EcoBoost 3-cylinder engines. Some required engine replacement under warranty. Check for oil seeps at block-to-head junction.
Inspect block/head junction area for oil seeps or staining. Ask for any engine-related warranty work history.
Est. cost: Free dealer repair if in warranty; $3,000–$6,000 out-of-warranty
Source: Ford 1.5T EcoBoost cylinder head issue / NHTSA investigation