Possible Causes
WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Extended oil drain intervals. The anti-foam additives in the oil may be depleted either from severe use or extended intervals.
- Air may be present due to recent engine repair on injection control pressure system. It may be necessary to run the vehicle aggressively for 15-20 miles to remove air.
- Wrong type or grade of oil.