Still Not Sold On A Catch Can? Check Here...

Cowpie · September 6, 2016

Sure, there is a benefit to putting a catch can on. I put one on a 2006 Cadillac CTS that I bought a couple of months ago with 52,000 miles on it. Along with some catch up maintenance, a piston soak and tune up, etc, I significantly slowed a 1 qt per 1000 mile oil consumption on it.

One does not really need to remove the whole system form the vehicle to get back to stock, just get it disconnected from the PCV line and get the PCV line back to stock. That can be done in a couple of minutes and with a screwdriver if one is using screw type clamps on the PCV line.

Jordan18 · September 9, 2016

Super interesting thread. I just bought my first GM vehicle, a 2014 4x4 silverado with the 4.3 v6.

Only had the truck a week, changed the oil with mobil 1 5w30 (mobil 1 filter). The truck has ~37,000 miles on it. At this point any benefit in putting on the catch can? Also how are you all removing the system in a few minutes? I am concerned about voiding my warranty?

Thanks!

I would only remove mine if I ever had an engine issue that threw a code of some sort, and I would want to get the whole can out of there just so they don't suspect anything aftermarket at all since GM is so touchy.

Sure, there is a benefit to putting a catch can on. I put one on a 2006 Cadillac CTS that I bought a couple of months ago with 52,000 miles on it. Along with some catch up maintenance, a piston soak and tune up, etc, I significantly slowed a 1 qt per 1000 mile oil consumption on it.

One does not really need to remove the whole system form the vehicle to get back to stock, just get it disconnected from the PCV line and get the PCV line back to stock. That can be done in a couple of minutes and with a screwdriver if one is using screw type clamps on the PCV line.

My stock PCV line just "clips" into place.

Cowpie · September 9, 2016

But how is your catch can installed in the PCV tubing? Sure, mine "clips" to the PCV orifice, but the catch can is installed in the PCV line using fuel grade 3/8" hose and clamps. To remove the can, I just remove the hoses to it from the PCV tubing and install a short piece of hose to connect the two parts of the OEM PCV tubing.

Jordan18 · September 10, 2016

My CC hoses are just slipped on over the "barbs" which my stock PCV line just clips over, they are on pretty snug this way without the need for hose clamps

But how is your catch can installed in the PCV tubing? Sure, mine "clips" to the PCV orifice, but the catch can is installed in the PCV line using fuel grade 3/8" hose and clamps. To remove the can, I just remove the hoses to it from the PCV tubing and install a short piece of hose to connect the two parts of the OEM PCV tubing.

Cowpie · September 10, 2016

Cool. Whatever works.

Amuro · November 5, 2016

Is it normal for these catch can to have a loud vacuums leak type noise??? It's really annoying, and yes everything is tight, no leaks but the crank case tube going into the oil catch can does sound like a vacumme leak

dorkweed · November 6, 2016

Is it normal for these catch can to have a loud vacuums leak type noise??? It's really annoying, and yes everything is tight, no leaks but the crank case tube going into the oil catch can does sound like a vacumme leak

Yes, it's normal.

You've got incredible hearing if'n you can hear it inside the truck. I can hear it; if I really TRY, when I'm in front of my truck with it running. It's quite noticeable when I in front of the truck with the hood up and the truck running though.

Amuro · November 6, 2016

Inside the cabin no, but when the hood was open and I was hearing a new noise yes. It's back on and I'm okay with it. If it's normal then I can't complain.

dorkweed · November 6, 2016

Inside the cabin no, but when the hood was open and I was hearing a new noise yes. It's back on and I'm okay with it. If it's normal then I can't complain.

IMHO...............you know the system is working if'n you hear the suckage. Then; if'n you're getting fluid in the container.................you know it's working............

Parrothead725 · November 22, 2016

I ended up buying a UPR plug and play catch can. Went with UPR since it came with hoses and factory fittings. It made a loud whine for the first hundred miles but now it's quiet. I can't open it up to see what's inside but however it's made it seems to work. The picture below is after ~1,200 miles. It is a thick oil sludge and I'm glad it didn't go into my intake. It's roughly 2oz.

I hope this picture works, it was a pain to reduce to the correct size.

BigBlueLB756 · November 25, 2016

Shoulda had it in a Starbucks cup!

enroberts · December 29, 2016

I have the Elite can in my '15 Silverado. I also have an RX (clean and dirty side) in my 2010 Camaro. They both work great, but the Silverado occasionally puts an odor out that I can smell when walking by the front of my truck. I can also smell the can smell inside the cab when it idles for a bit. Does anyone else have this issue? Mine is mounted over the 2nd battery tray on the driver's side right behind the headlight.

Joe@UPRproducts · January 2, 2017

I have the Elite can in my '15 Silverado. I also have an RX (clean and dirty side) in my 2010 Camaro. They both work great, but the Silverado occasionally puts an odor out that I can smell when walking by the front of my truck. I can also smell the can smell inside the cab when it idles for a bit. Does anyone else have this issue? Mine is mounted over the 2nd battery tray on the driver's side right behind the headlight.

The only time a catch can will allow oil - fuel odor out is when there is a small leak at the fitting or one of the hoses. Usually one of the fittings will need to be resealed with Teflon tape or a thread sealer. Be sure to check all your hoses are pushed all the way on. Leaks like this are so small they are almost impossible to find and that I have even seen the threads of the catch can needing to be retapped if there is any chatter when they're manufactured as taps wear out in production. Leaks are really frustrating and can always be found and just require a thorough review of the system.

It's frustrating when you have to sit in a truck with your family and smell gas in the cab.

Joe

BigBlueLB756 · January 2, 2017

That's why I hate leather seats.

dorkweed · January 3, 2017

I ended up buying a UPR plug and play catch can. Went with UPR since it came with hoses and factory fittings. It made a loud whine for the first hundred miles but now it's quiet. I can't open it up to see what's inside but however it's made it seems to work. The picture below is after ~1,200 miles. It is a thick oil sludge and I'm glad it didn't go into my intake. It's roughly 2oz.

I hope this picture works, it was a pain to reduce to the correct size.

The stuff I catch in my Elite basic can don't look like that at all. It's dark, watery, and I usually only get about 1oz. in about 1-2000 miles of driving.