Catch Can ****

[trailblazer]

Last oil change was about 2k miles ago. Truck gets a lot of remote-start time during the winter but we don’t really drive far with it as this ‘09 Tahoe has been replaced by a newer Yukon XL. I just drove 350 miles to visit family and this is what came out. This is the most I’ve ever seen since installing this can a couple years ago. It came out as a very very light trickle. I walked away for about 45 min to find this!!

 

[Fless]

Looks like a prime candidate for the updated driver's side valve cover, or has it had that replaced already?

 

[trailblazer]

Nope; I believe the production date was about a month before they made the change. Looks like a fun project for the next owner. I’ve just never seen it this bad before. I checked the oil level and it’s at 3/4 off the hatched area. Must just be a shîtload of water. I bet the throttle body has a small lake past it.

 

[gooffeyguy]

It's winter time, condensation happens, even just in the can when it gets hot engine vapors inside it and it's cold on the outside.

 

[Larryjb]

I had a LOT of trouble with condensation. It was clogging up my PCV quite badly too, and causing lifter noise that persisted throughout a 25 minute drive to work. I finally had to remove the can on mine. The PCV is clean, and lifter noise is minimal and gone once the engine is up to temperature. I figure that once the can filled with moisture, it started to get pulled in through the PCV as the engine cooled. I'm hoping that I didn't do too much damage with moisture getting into the valve train and lifters.

Other cans might be better, I did have a cheaper one that could only hold 30-40 mL total. (I could get a full 30-40 mL in condensation overnight where I live.)

 

[StrkAliteN]

Last oil change was about 2k miles ago. Truck gets a lot of remote-start time during the winter but we don’t really drive far with it as this ‘09 Tahoe has been replaced by a newer Yukon XL. I just drove 350 miles to visit family and this is what came out. This is the most I’ve ever seen since installing this can a couple years ago. It came out as a very very light trickle. I walked away for about 45 min to find this!!

View attachment 363068

Is this 'can' an aftermarket oil catch thing you have installed?

I am not aware of any such thing on my '07 Yukon

 

[wjburken]

Is this 'can' an aftermarket oil catch thing you have installed?

I am not aware of any such thing on my '07 Yukon

Yes. Aftermarket. It is put in-line between the valve cover and the intake manifold to capture any oil/vapor that may otherwise get sucked into the intake, which can muck things up.

 

[trailblazer]

This is a big can; that’s a 16oz coffee cup in the photo. I should have this dump into a 2L bottle. I recently installed a UPR kit in my 15’ Yukon and that comes with a tiny jar. Hopefully the ‘15 vintage 5.3 has the provisions to not allow such a ridiculous build up of moisture and oil.

 

[trailblazer]

It would be nice if these vendors sold something that has an automatic water-oil separator so the water can leach out leaving the oil behind. Maybe I’m asking too much here.

 

[89Suburban]

Hey at least it's doing it's job and not letting that s*it back into the intake. I check mine every two weeks.