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.
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.
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.
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.
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 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.
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.
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
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 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.
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.
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.
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 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
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. 👍
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.
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.
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 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.
@@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.
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 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’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.
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 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
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.
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 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.
I installed a $35 from amazon, no hissing at all, came with all fittings, apparently I'm getting a mile more per gallon since, only thing i don't like is the fittings come straight out from the catch can and is obstructing a little the oil fill tube, but is not like i have to mess with it daily so does the job😁
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.
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. ;)
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.
You need a better catch can system. I have a different system on my 2018 Chevy Silverado. Works great & I gained 2 miles per gallon if I keep my foot off the gas. No noise! 2 cans,5 hoses & 2 one way valves.
It is actually a vacuum loss. I have a tuner plugged in that measures vacuum. There was a drop. Only with my JLT brand catch can. I switched to mishimoto carbon fiber with baffle. No sounds at all!!! No his. Nothin. The vacuum loss is significantly less but still there. I believe part of JLT hiss is the screw on cap. The seal is cheap and janky. Mishimoto has a far superior thread lineup. Good news though!! At 260,000 miles. Hard work and lots of money later. My Mishimoto oil catch can officially no longer catches oil. Absolute zero oil. Months go by, no oil. Switched back to JLT and still no oil. I reversed my engines age!!! Ask me how :D
I've got the JTL on my 2023 Nissan Frontier haven't notice in difference in fuel economy. Sure does catch a lot of oil, water and other muck more so in winter
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.
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. 😂
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 .
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
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.
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!
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.
I have a theory that the bronze filtered catch cans can restrict airflow. Thereby increasing crankcase pressure or reduce operating vacuum. That can disrupt the emissions design parameters. And the higher condensation noted could be partially due to the probable restriction. I an using a large, non bronze filtered can. Only a baffle has been added to increase the travel path of the blow by. In fact, in drag cars and racing engines, a vacuum pump is usually employed to keep vacuum in the crankcase to aid the gas ported rings in sucking down the top compression ring into the lower part of the upper ring land. This is where the leak down testing is usually bad. Crap between the top compression ring and its lower land. Any vacuum restrictions in the crankcase should be avoided. In fact it would be better to add more evacuation into the intake path if at all possible. Pending tuning parameters and such. Doing a leak down first is the best way to know which cylinder is contributing to the crap in the catch can.
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).
Catch cans are baffled and hose lines are longer compared to factory.. This affects the amount of air and gases that are fed through the PCV valve, when in return changes the internal engine pressure. Because internal engine pressure is changed, the motor is working harder than what it needs to, and has to idle higher than normal to offset the loss in crankcase ventilation. This would explain loss in fuel economy.
@@LonestarHawaiian I'm thinking the leak is at the end of the hose where it clamps to the PCV valve .... ( the location of my 2015 is in that area not sure if it's the pcv). Second thought is that there are no clamps on the catch can side on the hoses. Just a thought
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 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!
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.
Ran UPR on my 2018 Tahoe with the 6.2 and zero hissing. I bet you cut the o-ring in the fitting when you installed it or the o-ring is missing completely. Pull the fitting and take a look inside.
Elite makes the best cans for Chevys. 3x the size and better built.They do cost more but you get what you pay for . I think you will be happier with it.
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.
My 2019 chevy 1500LD LT i put on a oil catch can. All highway im getting 25mpg. My truck doesn't make that hissing noise. None lifted, all terrain tires 255/70/17s. Cold air induction cold air.
The manufacturers don't put them on because most people won't ever empty them. Most don't even read their owners manual, let alone know that they have one. Installing one of these from the factory would only cause headaches for them.
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.
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
Manufacturers won't because they are not a necessity. You won't see a negative impact till the vehicle is out of it's warranty and they don't care then. So it isn't a cost they need to incur. Biggest reason is they could not trust the owner to maintain the maintenance of it resulting in liquid going through or a blockage hurting seals. Owning a JLT myself, these are JUST for those of us who want to go the extra mile and or want to keep our vehicles well outside the warranty.
Some manufacturers do install them from the factory but very few. My 2000 BMW 528i has it but it also has a return line that goes back down the dipstick so it's maintenance free. You may think your video was a partial failure but instead you just proved something that I have not seen on any other video which is quite important but I don't think you realised it. The hissing sound is certainly from the catch can, which you proved, but it's due to the baffles creating a resistance inside, actually not a leak. Your engine is designed for a certain amount of air intake at the manifold, but if you choke it even a little, your fuel efficiency will fall. You could do an experiment to compare how much air flow resistance is created by the original pvc line verses the catch can. You may have potentially found a flaw design with the catch can which may be either in the restriction of the baffles or the size of the can itself or perhaps even both. This potentially makes this a GREAT VIDEO which makes me want to look up into this when I install my catch can. THANKS.
![TOP 5 Silverado MODs + 2 Bad Choices [2019-2024] Trail Boss Modifications](/img/n.gif)
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.
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
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
Have the same one! You need a larger diameter hose than stock to reduce the drag on the pcv system by adding additional length.
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 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.
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.
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 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 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?
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.
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....
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.
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 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
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 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.
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!!
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 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 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.
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
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.
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.
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’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.
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.
Rule number one, what can go wrong filming YT vids will go wrong. Good vid man, way to stick it through 👍🏼
Appreciate it!
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 bought a 2021 trail boss and already put 1200 miles on it
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
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 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
The hissing is the turbulence of air rushing through the hoses.
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
I installed a $35 from amazon, no hissing at all, came with all fittings, apparently I'm getting a mile more per gallon since, only thing i don't like is the fittings come straight out from the catch can and is obstructing a little the oil fill tube, but is not like i have to mess with it daily so does the job😁
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.
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. ;)
3: am is not the time anyone wants to playing around with such problems ha ha ha!!
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.
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
You need a better catch can system. I have a different system on my 2018 Chevy Silverado. Works great & I gained 2 miles per gallon if I keep my foot off the gas. No noise! 2 cans,5 hoses & 2 one way valves.
What has to be done is an engine tear down before and after 20 or 30K miles
spray some starting fluid, around all the fittings and listen for an engine speed increase?
Sounds like the fitting is leaking with the hose. One of those things. Mine did something similar
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.
It is actually a vacuum loss. I have a tuner plugged in that measures vacuum. There was a drop. Only with my JLT brand catch can. I switched to mishimoto carbon fiber with baffle. No sounds at all!!! No his. Nothin. The vacuum loss is significantly less but still there. I believe part of JLT hiss is the screw on cap. The seal is cheap and janky. Mishimoto has a far superior thread lineup. Good news though!! At 260,000 miles. Hard work and lots of money later. My Mishimoto oil catch can officially no longer catches oil. Absolute zero oil. Months go by, no oil. Switched back to JLT and still no oil. I reversed my engines age!!! Ask me how :D
Gotta go with the K&N , comes with Better than OEM connectors and high quality hoses !
I've got the JTL on my 2023 Nissan Frontier haven't notice in difference in fuel economy. Sure does catch a lot of oil, water and other muck more so in winter
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?
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.
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 👍
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.
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. 😂
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 .
I see you drove through the mobile tunnel, I live in daphne which is the town just passed the bridge
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!
Did you make sure the O rings in the connectors were properly seated and aligned?
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.
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!
Do I need to unplug my negative terminal on my battery before I install this?
Can you modify the stock hoses? Or get GM replacement ones? Just a thought.
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.
Does the catchcan void the warranty?
My dealership told me it would not void the warranty.
@@Nashorn95 thanks for the info man. I’ll ask my dealer!
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
I have a theory that the bronze filtered catch cans can restrict airflow. Thereby increasing crankcase pressure or reduce operating vacuum. That can disrupt the emissions design parameters. And the higher condensation noted could be partially due to the probable restriction. I an using a large, non bronze filtered can. Only a baffle has been added to increase the travel path of the blow by. In fact, in drag cars and racing engines, a vacuum pump is usually employed to keep vacuum in the crankcase to aid the gas ported rings in sucking down the top compression ring into the lower part of the upper ring land. This is where the leak down testing is usually bad. Crap between the top compression ring and its lower land. Any vacuum restrictions in the crankcase should be avoided. In fact it would be better to add more evacuation into the intake path if at all possible. Pending tuning parameters and such. Doing a leak down first is the best way to know which cylinder is contributing to the crap in the catch can.
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).
Catch cans are baffled and hose lines are longer compared to factory.. This affects the amount of air and gases that are fed through the PCV valve, when in return changes the internal engine pressure. Because internal engine pressure is changed, the motor is working harder than what it needs to, and has to idle higher than normal to offset the loss in crankcase ventilation. This would explain loss in fuel economy.
Someone at JLT lied to you bro. It has a vacuum leak. I installed a catch can with no thick insulation and yet no hissing.
Same here. Mine is on 2019 High Country with a 6.2 so the fittings go to different places than the 5.3, but still not a sound.
Thanks for the info! I'm circling back with them. Y'all are awesome.
@@LonestarHawaiian I'm thinking the leak is at the end of the hose where it clamps to the PCV valve .... ( the location of my 2015 is in that area not sure if it's the pcv). Second thought is that there are no clamps on the catch can side on the hoses. Just a thought
Mine also does not hiss, 2021 trailboss 5.3.
great videos... even 3 years later.
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.
We will be making a trip to Disney from South TX in our 20 trailboss as well. Thank you for posting!!
That tunnel was in mobile! Destine is an awesome place to go with the family.
Ford has a oil separator on newer ecoboosts before the pcv that returns some of that oil back to the pan.
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!
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.
Ran UPR on my 2018 Tahoe with the 6.2 and zero hissing. I bet you cut the o-ring in the fitting when you installed it or the o-ring is missing completely. Pull the fitting and take a look inside.
Elite makes the best cans for Chevys. 3x the size and better built.They do cost more but you get what you pay for . I think you will be happier with it.
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.
Maybe your hoses are too long? Consider getting the CC closer to intake and valve cover?
Can this void the factory warranty?
i got a j&l osc and didnt get a hissing noise. Mine works great!
What exhaust system do you have ? Sounds awesome
The best I averaged on a road trip in my TRX was 16 MPG at around 75 mph.
My 2019 chevy 1500LD LT i put on a oil catch can. All highway im getting 25mpg. My truck doesn't make that hissing noise. None lifted, all terrain tires 255/70/17s. Cold air induction cold air.
I love the truck but what cold air system do you have
I got one for my 2021 GMC AT4 with the 6.2L and it doesn’t hiss.
I'm running the 2021 Badlander 6.2L what motor is on this truck in the video?
@@BM-uj7rtHis truck has the 5.3L
With the new J&L catch cans they still hiss but you can only hear it if you put your ear up to the engine but in the cab you can’t hear it.
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.
The manufacturers don't put them on because most people won't ever empty them. Most don't even read their owners manual, let alone know that they have one. Installing one of these from the factory would only cause headaches for them.
Why didnt you just send it back if it was leaking?
The air filter intake you are running is what? def not stock.
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!
Vacuum leak is causing the poor fuel economy, come on man. The computer is compensating for the unmetered air entering the engine
Why not use the oem hoses ?
Had the same noise issue after installing my unit. Changed the upper pulley and main belt. Noise gone.
Install mines this weekend on my 2019 GMC Sierra 1500
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
Manufacturers won't because they are not a necessity. You won't see a negative impact till the vehicle is out of it's warranty and they don't care then. So it isn't a cost they need to incur. Biggest reason is they could not trust the owner to maintain the maintenance of it resulting in liquid going through or a blockage hurting seals. Owning a JLT myself, these are JUST for those of us who want to go the extra mile and or want to keep our vehicles well outside the warranty.
Some manufacturers do install them from the factory but very few. My 2000 BMW 528i has it but it also has a return line that goes back down the dipstick so it's maintenance free. You may think your video was a partial failure but instead you just proved something that I have not seen on any other video which is quite important but I don't think you realised it. The hissing sound is certainly from the catch can, which you proved,
but it's due to the baffles creating a resistance inside, actually not a leak. Your engine is designed for a certain amount of air intake at the manifold, but if you choke it even a little, your fuel efficiency will fall. You could do an experiment to compare how much air flow resistance is created by the original pvc line verses the catch can. You may have potentially found a flaw design with the catch can which may be either in the restriction of the baffles or the size of the can itself or perhaps even both. This potentially makes this a GREAT VIDEO which makes me want to look up into this when I install my catch can. THANKS.