Crankcase Ventilation Heater
WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The crankcase ventilation heater is used to heat the crankcase ventilation system vapor to keep any oil that may be present from sludging in the charge air cooler, turbocharger and intake manifold. The crankcase ventilation heater is located on the crankcase ventilation hose. For additional information on the crankcase ventilation system, refer to CRANKCASE VENTILATION SYSTEM .