tmcolegr

Issue: Some 2017-2018 F-150 vehicles equipped with a 3.5L EcoBoost engine built at Kansas City Assembly Plant on or before 23-Feb-2018 or Dearborn Truck Plant on or before 26-Feb-2018 and Expedition/Navigator vehicles built on or before 19-Mar-2018 may exhibit an oil leak from the oil pan RTV seal. This may be due to a lack of RTV adhesion. This article includes detailed steps to achieve proper RTV adhesion. To correct the condition, follow the Service Procedure steps to replace the oil pan.

labmaster02

As always great information. Thanks again for all you provide

MDXLT

One thing I didn't read in this TSB was to allow the sealant 24 hours to cure before adding oil to the engine. You'd have to be pretty much a magician to only put down 4 mm of sealant that won't squeeze past into the crankcase a bit. Those instructions read like you also need to be dressed up in surgery garb as well but, I think they are pretty concise.

bamashooter

Motorcraft® Engine Shampoo and Degreaser

You just can't make this stuff up.

elptxjc

I think those are the plastic pans, correct? My June 2018 built 3.5EB already has the metal pan, and no leaks so far.

Bonjourjr

My 3.5 eco has had 3 oil pan replaced since I bought the truck in April 2017. All under warranty so far. I am very disappointed. I was planning on keeping this truck for a long time, but basically having to do at least one oil pan a year is giving me pause about keeping it.

Chitwoodfrms

My eco is gone after the 4th pan. 2017. Plastic.. No problems since...