2.0L Ecoboost PCV Baffle Plate

[TomV]

I suspect most folks know that a Direct Gas Injection engines require a good CCV (crankcase ventilation) system to mitigate oil from getting baked on the intake valves.

 

There are a few posts here on this forum for adding aftermarket catch cans to "catch" any oil that might have gotten out the factory PCV valve.

 

The reason for this thread is to bring attention to the PCV baffle plate. This appears to be Ford's attempt in reducing oil transfer and probably why state a catch can is not required.

 

The PCV baffle plate (air to oil separator box) is located behind the intake manifold. See below in blue.

 

 

The backside of the baffle plate features a pathway or maze for the crankcase gases and oil to travel to the PCV valve. The intent is the baffles will interfere with the oils ability to escape and force it to drip back down into the crankcase. Only gases are supposed to exit the PCV valve go into the intake manifold.

 

 

I've just discovered the aftermarket sells upgraded PCV baffle plates. These upgraded plates typically contain more baffles and/or longer pathways to vent the gases and block the oil.

 

If you GOOGLE search fore "ecoboost pcv baffle plate" you'll see a variety of updated designs available. Many are designed for other Ford vehicles, but I suspect they'd work well with our MKZ/Fusions.

 

These plates might be a good option for those that want better oil control, but don't want the periodic maintenance of draining a catch can.

 

 

Edited October 18, 2021 by TomV
spelling

[Izzy3906]

Thanks for the info.

Also just to add the Ford Focus ST 2013-2018 has the same one.

 

[TomV]

I ordered a new PCV Baffle Plate for my 2019 2.0T (PN# EJ7E-6A785-BA). This will be used if I remove my catch can. I had to slice the original hose to install the can and they don't sell the hose individually. The hose is plastic PVC to resist boost and oil fumes and shaped to drain back oil.

 

 

This revision differs from the image above. Notice the small exit vents within the rectangular box! That's the only place crank gases can leave. You would think oil/water vapor would have a difficult time exiting, but my catch can tells a different story.

 

 

I'm curious if the baffle on my car is the same revision and if Ford may any significate design changes over the years. I'll eventually find out... and post here.