Hyundai H Why does front crank seal pop out?

The front crank seal on a Hyundai can pop out due to several reasons, including improper installation, excessive wear, or damage to the crankshaft or seal itself. High engine pressure from blow-by gases can also force the seal out if the PCV system is malfunctioning. Additionally, using the wrong seal type or size can lead to fitment issues, causing it to dislodge. Regular maintenance and inspection can help prevent these issues.