Power Transfer Unit (PTU) oil leak on AWD carsmoderate
- 3.5L Ti-VCT V6
- 2.3L EcoBoost I4
All-wheel-drive 2019s carry the generation's Power Transfer Unit leak: the pinion seal weeps, the sealed factory fluid overheats, and the unit can eventually fail. The prevention mechanics recommend is a fluid change every 15,000-20,000 miles. It is a cheaper problem to catch early than to replace late (roughly six hours of labor). Look underneath for oil around the PTU and ask about fluid service.
Sources: NHTSA complaint database, 2019 Ford Explorer · Independent gen-5 Explorer mechanic transcripts (water pump, PTU)
a few hundred
PTU fluid service (preventive)
$1,000+, directional
PTU replacement (≈6 hrs labor)