Catch cans

northcreek

Original poster
Member
Jan 15, 2012
3,310
WNY
Anybody have any thoughts about using catch cans,I just became aware of them being used on daily drivers. Any validity to them or are they just the latest craze/gimmick ?
 
Last edited:

northcreek

Original poster
Member
Jan 15, 2012
3,310
WNY
or not...
 

littleblazer

Member
Jul 6, 2014
9,265
They help with a really poorly set up pcv system... so any vehicle built in the last 10 years or so. They work as advertised. You can build your own for a couple of bucks. Off the top of my head, I think @Sparky runs one on his truck.
 

hockeyman

Member
Aug 26, 2012
726
I have one on my 2006 Pontiac GTO and it catches quite a bit of oil that would have made it into the intake manifold. That being said, I'm not exactly sure about the intake setup on the 360 platform, but I did however modify the pcv setup on my GMC Acadia due to problems of excessive oil getting into the intake tube. It's not my actual video (below), but I did the same modification.

Thinking of it now, I might put a catch can on my Acadia...simply because I'm bored this week.

 
Last edited:

Mooseman

Moderator
Dec 4, 2011
25,257
Ottawa, ON
On a V8, it might be worth it. Not sure if it would on the 4.2. It does have a vacuum line from the intake manifold to the crankcase but the vent hose under the resonator box connected to the valve cover, which is the one that spews the most crud. You can even find a pool of oil in the box sometimes. There's just one thing if you do add a catch can to the valve cover is that the PCM is programmed to compensate for the throttle body getting gunked up. So engineers knew that this was a flaw in the system. Then you have the vacuum line. So is there oil mist going through that one too? It might need two catch cans.
 

Sparky

Member
Dec 4, 2011
12,927
I have one on my 5.3. It is not doing much right now because in the winter it fills with a lot of condensation quite quickly and at my apartment I don't have a good place to be constantly emptying it.
 

Forum Statistics

Threads
23,271
Posts
637,476
Members
18,472
Latest member
MissCrutcher

Members Online

No members online now.