Silverado Oil Catch Can - Did NOT Go According to Plan... 2020 Trail Boss Oil Separator
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- Опубликовано: 12 июл 2024
- Installation and IMMEDIATE TEST of the JLT 3.0 Oil Separator [Oil Catch Can] for the 2019 - 2021 Silverado, Tahoe, Suburban 5.3 & 6.2. Cross-Country road trip in the 2020 Trail Boss (family car).
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I have the exact same catch can on my 5.0 F150. Works great. I empty it onces every 3 months or so. It usually had about 2 Oz of oil in it. Definitely recommend for those with eco boost or similar. With the added pressure from the turbo the blow by is worse.
I just installed the catch can on my 2019 z71 and no hissing. Thank you for your videos. You have given me a lot of ideas for my truck.
I installed the JTL 3.0 on my 2019 Chevy Silverado K1500 RST 5.3L, and I was able to get rid of the air noise by using Self Sealing grey foam tubing 1/2 C 3/8" the one they use for the home air conditioners. I wrapped it with High Temperature insulation tape, and I have no vacuum noise or hissing noise, just the engine.
Have the same one! You need a larger diameter hose than stock to reduce the drag on the pcv system by adding additional length.
You are so talented at making video's. Great channel. Just bought a trail boss and your video's help immensely. I went to Maui in 2004 alone and it was an amazing experience for me.
2020 6.2, mine works great no hissing.
First 6000 miles the can was almost full. Had gunk in the bottom 1/8 of the tank that looked like white lithium grease.
Next 6000 miles it was only 1/3 full of gas and oil no gunk. I love it.
Hey does this void warranty on your truck ? I want to put one on my 5.3
We will be making a trip to Disney from South TX in our 20 trailboss as well. Thank you for posting!!
Cool video. Sorry for your troubles fellow Texan.
For your next mod, you might want to add a light under the hood.
It's one of those mods you forget until you need it, but when you need it, you thank yourself endlessly.
Also, speed has a huge effect on these trucks. On my 21 6.2, I lose (in round numbers) 1 mpg per 5 mph.
She peaks at 24 mpg at 50 mph.
By 85 mph (because, Texas is awesome!), she's down to 17 mpg.
Which was the BEST mpg for a truck like this not that long ago.
Yes, I could slow down and save money.
But, getting home from west Texas by 11:30pm instead of 1am, after working all day, is a worthwhile trade.
Weather variables can greatly change your MPG. Years ago when coming home from a trip we had a very strong tail wind. With five adults in my dad's Explorer we were getting about 27 MPG. About a third or the way home the wind turned into a even stronger head wind. For the rest of the way home we got less than 10 MPG.
That down pour wouldn't stop 😂 I've been looking at the same can, but that hissing would get to me too. Keep the content coming. 👌
Thanks 👍
Awesome video let's keep them Chevys rolling 🤙🏽🤙🏽
Thank you for sharing your wisdom, brother.
🙏🏻
There has to be a place to get a roll of the thick hose, cut it to length and install the JLT end fittings. ( your up close video shot showed a barbed type fitting connected to the hose) that would take care of the hissing noise. Maybe check for a GM part number in the pcv system. Once again, a great video. Been wanting to install this for a while. You have become my crash test subject for mods. 👍
haha! I appreciate the recommendation!
I’m late to the party on this video (awesome channel btw) plenty of great idea have come to me from it for my 22’ RST. Tried clicking on the link in the description for the catch can site and it basically said I’m in danger. Anyway, great videos. Keep building!
Rule number one, what can go wrong filming YT vids will go wrong. Good vid man, way to stick it through 👍🏼
Appreciate it!
Protip for those of you who live in a cold climate and install one of these. You'll want to empty them no longer than 1000 miles during the winter because you'll get condensation buildup like you wouldn't during the summer. I drained mine in warm months and only got normal oil out but back in february I drained mine and a lot of water came out with it.
Thanks haven’t thought of that at all
Thank you! Washington state does get cold!
Exactly the same experience i had. Winter seems to introduce more moisture into the pvc system.
Same here in Georgia. Our winter months aren't that cold and I still get milky oil out of my catch can after the Temps start to drop. Warm months I get regular looking oil.
Just check it every week. If you have a catch can, you're probably the type who checks shit all the time
Mines on my 2015 5.3 and it absolutely perfect!!!! , it collects oil and water vapor. I empty once a month and it's awesome....
I have the JLT catch can on my '20 LT. I change my oil every 3500. Once you dump out the bad oil, let it sit overnight in a clear container and see it separate. BTW-I don't hear the noise from inside the cab so no issue.
I have a 2019 Silverado RST with the 5.3 V8, just got back from a trip from western NY to Springfield Mo. About 1050 miles each way. I drove about 10 mph over the limit the whole way, most of the way at 80 mph and averaged 21.5 per gallon.
Did you turn on the dfm/afm or off?
Your point is?
Thank you because this video is exactly why I went with UPR’s Catch Can. They have Continental hoses and their can design is way better. They also have an interchangeable PCV valve as well that will allow you to go with a slightly larger jet size for better Vacum from your crankcase so that the overall system could flow better because adding a catch can restricts the way your system would normally flow when it’s stock.
I have the jlt on my 2016 Silverado and it doesn't make any hissing noises.the fittings were hard to push on mine.been almost 2 years since I installed mine.i drilled and tapped the bottom and ran a hose and a ball valve into the wheel well so I can drain it easy.i drain mine every week or 2
That tunnel was in mobile! Destine is an awesome place to go with the family.
I got one for my ‘17 Silverado 5.3L. I had to add a little lubricant to the little seals inside the line fittings and the seal on the catch can
Awesome video! Also, your mpg probably went down because of a vacuum leak and the engine not running at its peak performance due to that leak. Try putting Teflon tape around the threads on the can then screw it back in tightly. Also add some hose clamps at the fittings.
Finally got my 2021 Trail Boss LT 6.2L yesterday! It moves SO easy! My first time merging onto the interstate I had to let off the gas pedal half way down the onramp. Seriously hit 80mph before the end of the on ramp without realizing it. That said though, with the BBQ grill sized muffler and the resonators out back it sounds like a minivan. Can't wait to get my Borla muffler put on.
I just cut out the stock muffler and flapper and put a Magnaflow straight pipe on. Strangely my truck only had the front flapper where the instructions say as well as all the videos I've watched show two, one in front and one after the muffler.
@@FastSS02 5.3s have 1. 6.2 have 2.
@@FastSS02 Interesting. And here every single video I've seen shows only 1 flapper before the muffler. My 2021 with 6.2L has one flapper.
I know the feeling. I did the same thing when I first started driving my 6.2L. I just did a muffler delete and left the resonators on.
That's also where mine is. Deleted the muffler, flapper and left the resonators. After driving across the country and back (with the family in the car) we all still love the sound!
I have the same catch can on my 2020 trail boss and none of that noise. I will say that I have big hand and had a hell of a time getting that back hose clicked in good.
3: am is not the time anyone wants to playing around with such problems ha ha ha!!
I have the same catch can on a 2021 6.2 , and I do not have any vacuum leak noise in my engine.. I think your first diagnoses was accurate, you have a broken seal in one of your hoses. I will say I have about 3,000 on my catch can, thus far no problem ..for my recommendation I would exchange yours with a new one.
there are centrifugal ones built into the L5P and the LM2 (6.6 and 3.0 duramax respectively). They spin the oil out of the air, and return them to the crankcase .
Got myself a 2019 Trail Boss LT luv it now has about 11,500 in the almost 2yrs I've had him
Dang, I got mine on April 24th and I have 5870 miles on it before I leave for work this morning.
Any issues with the lifters?
@@Jsuazzo I haven't had any... Yet. Also just, scheduled my first service yesterday so we will see what the oil looks like. I'm adding a catch can.
Good to hear. I only have 110 miles and got concern after seen all the lifters failures
@@Jsuazzo nice, I took mine on a trip to Miami from basically Pittsburgh and back. Left town with 1700 miles and putt over 2800mi with the trip. Did average around 26mpg over a 400mi stretch on 95 south. When was your truck built? Were you lucky enough to not get all of the fuel management systems? I was happy.
I do know that the duramax diesels come with a separator. It doesn't make since that the gas engines don't have anything. Also that hissing noise is definitely an air leak. I recommend getting a new connection. It is just placing a vacuum on the crankcase, it shouldn't be that much flow. The reason you saw a reduction in fuel mileage is because pcv goes in after the MAF sensor. So if you are sucking a lot of air it will throw off the actually air fuel ratio that the truck thinks it should be producing. Thanks for the content.
I have a July catch can on my 18 and no issue. It did not have the fitting, it had steel hose clamps if I remember correctly. I have to dump it less in the summer... Pretty much all oil. Winter gives you the creamy latte
I put a catch can on my silverado and it's a no brainer if you plan on keeping your truck to install a can on it. You could remove the OE insulation and put it on the catch can hoses.
What is the inside and outside diameter of the OE hose? Would the OE insulation fit on a hose that is 13/16” outside diameter?
I have not installed the Mishimoto Catch Can that I bought yet. It can with a hose that is 1/2” inside diameter, and 13/16” outside diameter.
@@jimk8927 I cut off the plastic PCV factory line and then slid some good quality rubber hose to the catch can and put a hose clamp on it. I don't know if it was 1/2" ID hose for sure but I think it was. I can say it was not hard to do. There are quite a few videos on YT that show how to do it.
The best spot for the can is on the same side as the radiator overflow?
If so, I need to make a plate that connects to the bolts that are holding on the radiator overflow to the firewall as the parts that come with the catch can that I purchased does not have a mount that will work. Then once the plate is bolted I will be able to bolt the bracket that I have with my catch can to the fabricated plate.
I have the same JLT catch can on my 19 Silverado(new body), and have put around 4,500 miles on it without issues so far!
Same. I dont think ive heard any hissing from mine. will have to check now haha
Happy birthday hawaiian
I have one installed and it does NOT make that hissing noise. That noise isn’t supposed to be there. I think you need to force the female connector into the male connector. Don’t be gentle with it give it a good push. Mine didn’t seat correctly when I didn’t use a strong push. Then pull the hoses to make sure they’re not half-seated
Same here bro I got one too and it didn’t make any hissing sound.
I agree that any engine with direct injection, turbos, etc. should ideally come with a catch can from the factory. The problem is that many drivers don't know anything at all about vehicle maintenance. The average car owner would not understand the purpose of a catch can or know to empty it periodically, so the manufacturers don't bother to use them. Also, the overall economy of today is dependent on planned obsolescence. Car makers have a financial incentive to design cars so that they will be reliable only as long as the factory warranty is good for. After that, they hope that major failures happen so people will just buy another vehicle rather than spend thousands on repair bills.
We went to Okaloosa FL. Awesome time! If you ever have a chance to go eat at Jimmy Buffett you won't be disappointed 👍
I’m following you from Saudi Arabia 🇸🇦. You make very, useful and entertaining videos.
I own a car like yours - Chevrolet Silverado Trail Boss 2020 Black color.
Thank you for following!
I have a couple of JLT (now J&L) catch cans, I empty them at each oil change. My 3.5 Ecoboost usually has about an ounce of oil in the can between changes, my Tahoe since it's not boosted isn't as bad. J&L actually has a video about the hissing noise that they now send a link to when you buy one for a GM vehicle. Obviously GM knew they had a serious noise issue to put that much insulation around the PCV hose, and that one is what, maybe a foot long? Now you've got 3+ feet of non-insulated hose.
The Ecoboost was one of the first DI engines to start having serious issues with oil residue from the PCV coking up the back of the intake valves. A Ford mechanic recommended the catch can when my truck was new in 2018.
Great video, thank you!!
Just bought a 2021 trail boss and already put 1200 miles on it
I have the same set up as you. JLT catch can, Muffle delete, and the CAI intake. The catch can on my 2021 sierra 5.3l does the same hissing sound and catches a ton of crap. I put the catch can on at 1200 miles and the dealership hasn't said anything about it. I now have about 5k miles on the truck. I noticed in the colder weather it will catch water from condensation(yellow goop). If you could give an update about what JLT says about the hissing, that would be awesome! Thank you for the great content!
Great Video 👍
Hell yeah I'm putting a dorman brand on my 2012 chevy malibu with a 2.4 ecotec I've got a K&N air filter in the stock air box and resonator removed with a cone K&N air filter so I'm running 2 total air filters I'm hoping I'll get a little more sound yet from my set up looking forward to my install peace and much respect to you 👍 JASON
Install mines this weekend on my 2019 GMC Sierra 1500
UPR catch cans come with much better hoses as well as WOT hose. I have a 2015 Yukon 6.2 with no added noise. (Pro model with ceramic back flow valves $439).
I just installed mine yesterday and did notice a lil increase in vacuum noise(hissing) with the hood open, but not with the hood closed. I ordered some foam beer can insulators to quiet the catch can. Not that i need to but more of an experiment. 🤔 also added some oil to the inside of the hoses o-rings with a q-tip.
Awesome Idea 💡 👏 👌 I'm wanting to insulate a dorman catch can I just got and now I know what I'm using 😀 peace and much respect to you 👍 JASON
You have to be careful. The noise could be caused by excessive pressure. The catch can may be increase the pressure in the PVC system. The PVC needs to evaluate air as fast as possible and with a catch can this can be more restrictive causing increased crank case pressure and this could explain the lower fuel economy. I installed one on my 4Runner and MPG dropped 2 mpg. Took it off and it’s back to normal. The manufacturers didn’t put one on because they don’t really need it unless you have direct injection.
I believe all LS motors made after 2006 are direct injection. I could be wrong.
I am running a larger can. Which meant it had to be installed on the frame. It is 4" in diameter and 7" in high it has a low restriction baffle at the inlet port and a slightly pulled-apart SS pot scrubbing pad(making a looser weave to keep a more open flow of gasses etc..) at the exit port with 1" ID flex hoses to and from the can. Making much less flow restriction. It also has a 3/8" ball valve on the bottom of the can to allow easy draining. However, I don't believe this was any of your problems with that vacuum leak. I have just created a larger in-catchment area to give the gasses and gunk a larger😮 area to slow down and collect. This resembles an external catch-can system I found on a marine engine.
Lonestar, I did a little research (google) and found a thread on this issue but with a different brand. Quote "
Re: Sucking noise with catch can installation.
Postby MWBARN1 » Jan 05 2021, 11:52pm
I had this same issue with my E2000 Catch can. It would very slightly affect idle to the point of me not being sure if it was in my head or not and there would be a hissing sound from the engine bay when running. I couldn't let it alone so I took the catch can off the truck, put the stock PCV tube back on and there was no more hissing. I then took the catch can assembly and bench tested it with a vacuum pump. It would not hold a steady vacuum and would leak from 20 inches of mercury down to zero within five seconds. I isolated the leak to the quick connects provided with the E2000 kit. I cut apart the factory PCV tube and took the connectors from it and installed them on the E2000. I re-taped the hoses where I replaced the fittings and bench tested it again. This time it held 25 inches of mercury for five minutes. I called it good and released the vacuum. After re-installing the catch can there was no hissing sound with the truck running. Hopefully this helps others with this same issue.
God bless you and your family bro
If I get one of these, I’ll cut off the connectors, add some foam insulation over the hoses and clamp em down. Hopefully that’ll help
Thanks
COOP
...
It's a great investment. No regrets....
When running a closed catch can like you did here, you're supposed to still use the PCV valve the engine normally uses. When you connected you said you connected a line from the can to the valve cover, I don't recall you connecting it to the PCV valve.... Without the PCV valve, way to much air will flow. PCV valve meters the airflow. It will act like a vacuum leak without it.
If you did in fact use the PCV valve, them obviously there was an air leak elsewhere in the system. But if it's sealed up tight, these kinds of setups work awesome on any engine with a closed loop PCV system. Thanks for the video!
I was thinking the same. And in the video he had it still on the stock hose.
@@dellionpascual1813 I wasn't sure if he did or not. I only watched it over the one time.
We out here!
I had same hissing when I used the fitting on it, I just cut the fitting off and used hose clamps onto the nipples of the PCV
Interesting... I'm going to try that. Thanks for the recommendation
Mpg issues might be that the circulating air travels a lil bit more? And the ecu need a lil bit of driving around to “calibrate”?
Just get a breather oil cap. Had the same issue when I owned a Sky Redline and installed a catch can with AN fittings and braided hose.
Just adding the breather doesn't do much. What that does is allow the valve cover to draw in fresh air. The pcv system has an intake and and exhaust. The catch can goes on the exhaust side of the pcv system where it filters out the oil so it can be burned in the combustion chamber. Just adding a filter doesn't eliminate the problem.
Interesting. My 2005 Chevy trailblazer 5.3L EXT LT came with a cold air intake filter. Just hidden under a cover shroud. I typically take that shroud out during the summer. I do kind of like the direction change of your setup. Not gonna pay all that for what you have but I like fabricating so there is that..
Come down to the ocala forest and go off road. Put the z71 to use like I do in my 08 Silverado. Big fan here in Eustis, FL
Totally agree that catch cans should be stock on direct injection only engines. Which cold air intake did you use? Looks nice. I didn't know those engines use 0W-20 oil, yikes.
I have a 2021 Sierra AT4 and I just noticed the hiss too! Pretty annoying, I'm going to try a high temp thread tape on the threads of the catch can to see if that helps
great videos... even 3 years later.
Hauoli la hanau Bradah Chad!🤙🏽🤙🏽🤙🏽
Mahalos!
IMO: manufacturer’s know most owners do not follow regular maintenance intervals. Most don’t even check their oil and rely on a lube shop or mechanic. They assume owners wouldn’t dump the catch cans. Rather than add money adding them and potentially have owners blame them for engine failure or issues in the vacuum, they accept the issues present in the current set ups.
My opinion but I turned wrenches on vehicles for the military for over 21 years. Wild how many people would hop in and fire up vehicles without checking anything, which their manuals said to do before they started their vehicle.
You make no sense. Why do you have likes? What is your "REGULAR" maintenance... Turned wrenches in the miltary.. Because I'm checkin oil and hydro on a tank/helo. Be realistic you super soldier.. People buy new vehicles to not have to mod them. Might sound crazy to a barrel licker,
@@twochuktommy8432 instead of name calling I’ll highlight the ignorance in your comment. “Regular maintenance” are things as common as checking the air in your tires prior to using the vehicle, oil changes, and even following the manufacturers recommended service intervals. Which are listed in your owners manual in case you haven’t seen them.
Miriam-Webster dictionary defines modify as to make a change. So anything that is changed from the manufacturers original configuration is a modification. Window tint, decals, even the little phone charger you plug in to charge your phone is a mod.
Thank you for attempting to troll a simple comment over 9 months from the time I posted it though. Have a nice day and be safe in your vehicle.
@@PsykoticUSMC Great reply and thank you for your service, from a fellow vet!!
Run a slice line down the stock part insulation to be able to remove it to use it around the new catch can hoses then wrap the insulation tape around that I may be super quiet just a thought
Good thought!
Would appreciate if you could do one video where you go over reliability of new Chevy 5.3 and 6.2 engines. I am interested in Chevy Tahoe but am hesitant to pull the trigger due to Lifter issues all over forums. Thanks.
You better wash that dish bro 😂😂
Haven't gotten in trouble yet 🤫
I have a 19 TB and installed the JLT in 21. My first thought was not getting the hose fully seated. Mine were both tight to seat (click on). I never did get the louder hiss. I empty my can every 2500 and average about 1/3-1/2 full
Looking to install the catch can on my 21 Trail Boss. I have the extended warranty and will that effect the warranty?
I have this on my 5.3 and don’t notice any noise Plus I get about 2 mpg more hwy. to be honest your first clip sounded like it was not clipped in fully.
I see you drove through the mobile tunnel, I live in daphne which is the town just passed the bridge
did you remove the PCV valve and replace it with the catch-can; I don't know if it is wise to substitute the PCV valve for the catch-can, I installed a catch-can on my dodge ram van, but I left the PCV in place
Inner spoke would be awesome. Also I need the LSH shirt you wear when you son is camera man.
I out this on my 21 5.3 trail boss and I have no hissing. I have had it on for about 12k miles for the last year and a half. I put it on at about 600 miles.
I have a 2020 1500 custom does your oil filler neck move at all? Front to back? I have the elite engineering catch can and their bracket puts the can right in the way of the oil filler neck but the filler neck can move with a bit of effort.
Have you found the answer yet? I've been looking into the Colorado ZR2 Diesel or the Silverado like yours and it sucks to even have this kind of issue off these brand new vehicles.
Now think of the air flow restriction of that colecting and sticking throught the intire intake surffice and then the efect it has on your finly metered air fuel ratio trying to achieve the best and cleanest combustion in the cylinder at the time of combustion. There must be a mesurable amount less emmisions and carbon bildup = better engine longevity and air quality. Good job.
I just added this catch can to my 2022 6.2L Trail Boss LTD. Mine has the hissing to but you can only hear it with the hood popped. Not too bad. I just want to confirm that you have determined it is not a vacuum leak and lowered your mileage and that first drive was a fluke?
I was a diesel mechanic up North for 35 years and I saw a few of them catch on fire because they would be clogged, I personally would clean them and replace the filter every time I did an oil change, it would take a few minutes to do the right thing.
So is this really a necessary mod for my 2023 Silverado? I’ve read some issues on Silverado and this was one of the solutions.
They don't put the catch cans on the vehicles because the majority of owners would never check them or empty them out. The easiest thing to do would be just vent it to atmosphere but the manufacturers can't do that for emissions reasons. Be we can. ;)
spray some starting fluid, around all the fittings and listen for an engine speed increase?
I’m thinking it was not quite tight at the connector during the original installation, but you got it on the reinstall. But I could be wrong.
What is the inside and outside diameter of the hose that is used in your application? What is the stock hose inside and outside diameter of the hose?
I have purchased a Mishimoto Catch Can for my 2.7L Silverado. It has an inside diameter of 1/2” and an outside diameter of 13/16”. Is that thick enough to limit the sound that you were getting with your installation.
I was thinking of maybe getting insulation wrap that is used for hot water pipes to install over the hose to limit how much sound is heard from the air rushing through the tubing. Please reply with your opinion. Thanks.
I’ve installed same unit(s) on a 2020 Suburban Premier Plus with the 6.2 engine, and on a 2016 Silverado LT with the 5.3 engine. I also purchased the extra 3oz extension for both units from JLT. I love the system.
One thing that I notice from the 5.3 in my Silverado, is that once I deactivated the AFM system, via a Range plug in module, the oil bypass was greatly diminished. Or there was less oil to catch. That is yet another down side to the AFM system. Even though the cylinder would be deactivated, the oil pump still when send oil to lube the cylinder, and cause additional blow by. I believe Gm makes a different valve cover with a baffle and screen on the pcv vents inside the valve cover. To help reduce the internal blow by.
On the 6.2 engine in my Suburban. I’ve notice that the system collects more oil while on longer sustained trips, especially if you are using adaptive cruise control. Than on daily driving. I haven’t purchased a DFM deactivation system yet. But; the Range Pulsar LT is in my future for my 6.2.
Although the JLT system is some what pricier then others. I just like the reformed look and the ease of a plug and play system. It looks as if it were a factory option. Which I think for the amount of $ we pay for these vehicles, that a system like this should be.
Oil is sent to lubricate the cylinder? I think you're mistaken.
Happy late birthday 🥳 🛻
Couldnt you either dip the can in high temp foam or even possibly rhino line (bed liner of choice) the can
I have a 2020 Trailboss 6.2 with the same catch can. Mine never has hissed. 12k miles.
Do you know what gearing your truck has and what was the power loss like when you went to larger tires?
Maybe I missed it but did you update the mpg at the end? Was it the rain or is it still 16
My guess is there is still a slight vacuum leak. It's extremely possible that the o ring on the jlt fitting is missing, damaged or even the wrong one.
That's what i'm thinking. I'm going to try to cut and use the stock fittings with the JLT hose and see if that fixes it.
@@LonestarHawaiianany updates on the hissing? And if so how did u fix it?
I have the same catch cam on my 2020 Trailboss. It does not hiss at all. I really think the fitting coming off the valve cover is bad.
Is this after the afm deleted? Or dynamic fuel management whatever is in that year. Already got allot of miles on mine so just gonna keep running her I’m at 150k miles installed afm delete around 115k and change my fluids on time no consumption between oil changes even before the delete, the delete is a no brainer for all GM motors about to add one to my caddie also still under warranty but 50k miles now
Destin ...my hometown!!!
I'm still curious about the mpg though. I wonder what the vacuum noise would had been like if you had spliced the insulation from the factory hose then taped it over the aftermarket. Might seem silly but I would definitely try it out. Hahaha
I did try it after I finished filming the video... It helps a little more, but still has the noise. Still trying to track it down with JLT.
@@LonestarHawaiianI have the same one and have no issues. Are the hoses connected to the right ports? I can’t tell which way you have the catch can is turned under the catch can mount, but it looks like you have the hoses going to the wrong ports. Just a thought.
Sounds like the fitting is leaking with the hose. One of those things. Mine did something similar
You need to tape the threads on your fittings. It should be there in the manual. You also should consider Teflon lined lines (soft fuel lines) to keep the hoses from getting gooey.
Also… you’re worried about a catch can voiding your warranty and you have a cold air system with an oiled air filter that lets all sorts of dust and debris into your intake?!
The catch can isn’t the problem for the warranty. 😂