What could this be?!

[shadows_5.0]

So I popped the hood today and I noticed my breather filter on the catch can is bubbling? I scanned the car to make sure there wasnt anything going on code wise.

what do you guys recommend I check or do?

what is causing this and what could it be affecting in a negative way

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[Skye]

By viewing the video full-screen, I could see the bubbles.

When is the last time the catch can was emptied?

If you open the catch can, what does it look like inside?

How often is the catch can emptied?

When the catch can is emptied, how much oil is in it? The rate of fill?

The breather filter, can that be removed and cleaned? It is serviceable?

What is the oil consumption of the engine?

Is there any coolant loss involved?

Is the engine otherwise operating OK?

Edit,

If you've not done thus far, the can needs to be emptied consistently. How often is up to each engine. You can start by checking monthly, to determine the rate of capture. In my example using a stock engine, I can empty at each oil change.

If you find the can is filling up more often than expected, that could be several things. At one extreme, internal engine problems and a lot of oil blow-by or crankcase pressure. At the other, a PCV valve that is stuck open at idle, drawing oil due to high vacuum.

 

[Mike Pfeifer]

My first thought is the catch can is full.

 

[CrazyHippie]

I'd take it apart and clean it really well, including the filter mesh and screen, with a good degreaser.

 

[OldbutNew]

PCV systems on boosted engines are touchy at best.
When a naturally aspirated engine is at idle and part throttle, there is vacuum that pulls the vapors out of the crankcase, through a series of baffles designed to remove the larger oil droplets, and through the intake. When you go larger throttle openings, the vacuum drops and the system gets a chance to "relax" . All the oil contained in the cam cover baffles (On a Coyote that's a LOT!) can drain and make room for more oil. On a boosted engine your larger throttle openings see positive pressure. On some applications, your intake is seeing low boost even at steady-state cruise when the PCV system is looking for vacuum. S550 GT500 has the self-draining catch can due to the combination of these factors.
All the above comments and suggestions will help. Monitor that can constantly. Like every time you drive the car until you have it characterized and documented. Then keep it emptied and cleaned.

 

[HKusp]

So I popped the hood today and I noticed my breather filter on the catch can is bubbling? I scanned the car to make sure there wasnt anything going on code wise.

what do you guys recommend I check or do?

what is causing this and what could it be affecting in a negative way

You just bought this car, correct?

 

[PoCoBob]

Not knowing anything about boosted engines I can only suggest what the cause on a N/A engine might be. You seem to have pressure where there should be a vacuum, that would suggest a plugged PCV valve. They are cheap so replacing it would be a good place to start. A simple test would be to pull the dipstick and see if the bubbling stops. If the PCV valve is plugged the pressure will find another way out. Pulling the dipstick would make that the easiest way out of the block.

 

[Whitedevil95]

1. is it full?

2. If it fills up super fast it might be compression test time.

 

[Hack]

I'm surprised you can even have the catch can open to the atmosphere on a Coyote without causing all kinds of drivability issues.

 

[Whitedevil95]

By viewing the video full-screen, I could see the bubbles.

When is the last time the catch can was emptied?

If you open the catch can, what does it look like inside?

How often is the catch can emptied?

When the catch can is emptied, how much oil is in it? The rate of fill?

The breather filter, can that be removed and cleaned? It is serviceable?

What is the oil consumption of the engine?

Is there any coolant loss involved?

Is the engine otherwise operating OK?

Edit,

If you've not done thus far, the can needs to be emptied consistently. How often is up to each engine. You can start by checking monthly, to determine the rate of capture. In my example using a stock engine, I can empty at each oil change.

If you find the can is filling up more often than expected, that could be several things. At one extreme, internal engine problems and a lot of oil blow-by or crankcase pressure. At the other, a PCV valve that is stuck open at idle, drawing oil due to high vacuum.

I definetly agree with most of this. He needs to keep it empty and check it regularly. Howver this is a UPR Vented catch can. I had this same one on my previous ESS Car. There is no vacuum on this. Basically each valve cover is just connected to this catch can. Crank case pressure is just sent to the catch can on its own. So if its filling up fast or has a lot of air coming out of it then it means he has blow by. This system typically eliminates the PCV valve altogether with just and open connector.

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