There is a lot more to this problem than what he is fixing. The 3.6 liter High feature engine on the Traverse Enclave and Acadia had factory service bulletin's on this problem. I don't know what kind of engineers the colleges are putting out anymore but what GM did was either out of stupidity or greed along with bad engineering. This is the story, GM had a lot of in warranty complaints about these engines burning oil and all the problems that came with it caused a lot of service bulletins. The Bank 1 side of the motor facing the firewall had a opening coming from the crankcase leading up to the valve cover to what they called a PCV ( Positive Crankcase Ventilation) valve. There was no baffle to keep oil from the crankcase from hitting the 2 tiny holes in in bottom of what they call a valve that is not a valve at all. What GM did to cut costs was they just stamped out 2 pieces of metal to look like a PCV valve with no valve inside, instead they made 2 tiny holes in one end and 1 slightly larger ( but still too small) hole in the other end for what reason I do not know because it is suppose to be a check valve, I guess engineers thought making real small holes simulated a sort of check valve, but unfortunately it ended up checking both directions to the point of being an ideal place to clog. Crankcase gases (if not vented) can make your oil get saturated with blow by gasses and residual fuel from the ignition gasses that blow by the pistons each time a cylinder fires, which if not vented cause your oil to turn black. By Sucking clean air from the boot (where he said the oil collected) down into the front valve cover, down through the crankcase up to the PCV valve on the other valve cover and right into the direct vacuum of the intake to be burned, that is what keeps the engine clean. A PCV valve should have good air flow to accomplish this, A (REAL) PCV valve has a check valve to only allow the flow of crankcase gasses in one direction. The piece of junk fake PCV valve GM put in these motors has no check valve inside, their stupid idea instead was to make the valve holes smaller. Next I explain why this system is a problem and GM's attempt to fix it. The tiny holes in bottom and top of the so called PCV valve were so small and the port from the crankcase leading to the valve was too big, this was allowing oil to be splashed directly on the bottom 2 holes of the PCV valve clogging them. GM put out service bulletins as a fix. First they changed the gasket for the firewall side valve cover to block off the port leading to the PCV valve, the rubber part of the GM modified gasket blocked off the port to the PCV valve except for small 3 holes in the rubber gasket to still allow crankcase gasses to get to the PCV valve,. The next service bulletin was to drill out the top hole in the (so called Valve) with a 7/64ths inch drill bit, and each of the 2 bottom holes with a 5/64 inch bit. This was their attempt, a cheap fix trying to keep the crankcase vent system from clogging because when it clogs, it clogs at the end of the PCV vent system where the engine suction is. Then what happens is, crankcase pressure builds up and blows oil backwards through the front valve cover fitting that leads up to rubber boot throwing oil into the intake.. A poorly designed factory PCV valve clogging caused all these problems, premature dirty oil , low oil level because oil was being slowly burned through the intake before you would normally change your oil, causing low oil levels in the engines, and the lower oil levels meant the oil got hotter, broke down quicker and provided less lubrication and more heat to the timing chains so they would tend to prematurely stretch causing other engine codes and the need for replacing them. I recently rebuilt one of these motors, the owner was a woman, she was not aware it was burning oil, went low on oil and burnt up the motor, it had barely 100k on it. A 35k dollar car lasting her 7 years. I hope GM does better with electric cars if their greed in manufacturing costs does not make them shoot themselves in the foot. I use to be a Chevy man, GM has gone to hell, This engine they required you to replace rod bolts, head bolts and flex plate bolts because they were good for one tightening, they were not cheap, also they told you to replace 2 stainless steel fuel lines. It made the rebuild almost not worth doing it. The fuel lines looked good to me, I reused them and made sure there were no leaks, had no problems. But I was not taking a chance with head bolts and rod bolts and flex plate bolts, I kind of suspect GM made just the hard bolts to get to, the ones you had to replace because they stretched ( for profit) to sell more parts that you could not find anywhere else because they were GM specialty bolt sizes that only GM made. The only thing high feature about this motor was it's poor design with a cheaply made poorly designed PCV system. I found a real PCV valve when I rebuilt this engine, it had a large hole in it and a check valve. I guarantee my modification is better than GMs, but you do need the modified gasket for the rear valve cover to keep oil from directly hitting the PCV valve
Is there not a way to sue or force these sum bit ches to fix this shit? Man what was I thinking buying another gm,,,, what brand do you like now that doesn’t seem to have a bunch of corrupt mfs at the top of the company fkn the little guy? Or is there even any? 😂 really tho I’m about to buy a horse and buggy
Im going through the same now Mel with my gf's malibu 3.6 ltr. Was wondering if you might have a part number for the PCV Valve you've found for your engine build? Thanks for all your insight
Hey Peter just a heads up you should have drilled out your new PCV valve with a 7/64 drill bit on the top hole and a 5/64 drill bit on the 2 bottom holes. Gm posted this upgrade several years ago to help alleviate the oil problem in the throttle body snorkel. I hope you all find this useful. Good luck.
Perfect instructional video. Thanks for sharing. Some personal experience points; as a safety precaution, remove the hose and wiring harness from the purge valve (in front of the front pcv breather.) That hose stem is plastic and breaks easy. If that breaks, you'll know it because when you fill up the tank, it'll take a while to start (cranks a lot longer before it starts.) Just push in the little green tab and the hose will release from the stem. Next, He's right about the back one being a bear to get out. I ended up clamping on vice grips and used a flathead screw driver under to pry out. I am in no way an expert on this type stuff, but this video worked and removed my codes (haven't come back in a while.....yet.)
Well done. Had the same problem on my 2008 GMC Acadia, but I didn't know there were 2 PVC valves until I watched your video. Will be changing them soon! Appreciate the sharing!
Been trying to solve this problem for over a year.... cleaned and reconnected the pcv valve and no traction control/stabilitrac error in 70 miles! Thank you!
The problem exist from fault valve cover gasket a. This was a recall on enclaves 3.6 v6 engine. When buick installed the gaskets they where opened section gaskets, they later realized that a section of the gasket should have been sealed and closed to prevent the oil mistake. It causes oil to build up inside your snorkel and breather taking from the oil it needs to lube the timing chain properly and causes the chains to stretch and jump time due to an access in heat build up. It can inturn bend a valve through jumping time.
I am so glad I came across this video , that explains why mine was just like your tube , I was thinking like how in the heck did this happen , I ordered my new PCV Valve today , can’t wait to install it and see the difference
BRO! Thank you for this video. I just changed the air filter in my Outlook and was like WTF is all this yellow oil. Im going to try this out and prayerfully it fixes the issue.
The issue is not the pcv valve. The issue comes form the valve cover gasket that you need to replace. New valve cover gasket have a smaller holes that will not oil suck through the pcv valve.
Be sure to let the engine come up to temp before removing the rear valve. Makes removal A LOT easier. I initially started the project with the engine cold and almost snapped off the top of the valve...that would've been ugly.
@@widtrak77 I'm in the process of doing mine now. I removed while the engine was cold. I have to tap with flat head screwdriver and hammer gently but it came out
@@MartezComedy I'll give it another shot. I'm going to need to pry from under that lip. I'm still afraid of breaking it. I don't know why it is in there so damn tight. Someone on the Traverse Forum said there's threadlocker holding it in. I think is only for use on threads doesn't this have a smooth surface in there?
@@widtrak77 No threads on mime but I'm working on an acadia. Theres 1 thread along the shaft of the valve. I put a flathead up against that and gently tapped it out.
Why can't you leave it off if it runs drain oil into the intake? Then put a longer hose on the breather tube and run it to a safe place for it to drip.
I replaced these and installed a oil catch can say goodbye to oil and carbon build up also replaced throttle body after I did a seafoam cleanse man my 09 traverse runs like new and im at 150+ miles
Lewisfam23 my 09 just hit 150 recently...its sluggish and i sudpect timing chain has stretched. Gonna clean MAF sensor and throttle body and see if it makes a difference. May I ask what made you replace yours??
chevyornuthin actually just reading up on forums and getting prewarned but the oil catch can will definitely help if possible grab one with a breather attached it will stop the oil
chevyornuthin actually i saw a video online and i just bought one and replaced it just incase but i did notice a huge difference so it did need it i Didn't need to do the so called reprogram i just put it on and drove a few miles and boy let me tell ya mpg,s went up but i also replaced all oxygen sensors and knock sensor all at the same time as well
Catch cans don't prevent carbon build up. They only help prolong the process. I guarantee there is just as much if not more oil going by than what is being caught by the can. I don't care what brand of can. Don't believe me? Try running two catch cans in a series on the same PCV valve or breather side. But I do believe catch cans are only going to get better as time goes. The technology can only improve. Every day someone is coming out with a new baffle or can design. Plus the market is saturated with companies that manufacture them so that only makes it better for us the consumers.
oreilly now has these. Just ask for part #V546 $23.99,....and part#V518 $23.99. These are the front and the rear "whatever" yo wanna call them. They are not refered to as pcv valves though.
Not here's the craziest thing about that took that snorkel off it was for the oil and I clean the throttle body and I cleaned the snorkel l out but I never knew about the PCV valve this is some good information now I got to go back and replace it
Glad I saw this video! I was wondering why I had all that oil. Gonna try soaking the metal valve first to save the $16. Cuz I'm cheap AF. Update: Just did this while flushing my power steering. The rear valve is completely hollow. No screen or filter paper. I drilled all 3 holes about 2x bigger to 7/64. I used a metal body panel pry bar fork tool to pluck it out really easy. I had it from an Amazon kit cheap like $6. A gardening weed lifter fork from Home Depot would work also. I sprayed some brake cleaner on it and reinstalled with spark plug anti seize. Tapped it in with a small hammer. Hope this keeps the oil out of my air snorkel.
@bathanmark valve hasn't clogged again AFIK. But I broke the front snorkle into the air intake and ended up just disconnecting it / removing it. Put a plug on the snorkle side and a sock over the engine side that just vents to the atmosphere now. No loss of power or emissions lights. I think it's safer so no chance of oil going into the cylinders. Just dirtier for the atmosphere I guess.
If there is oil in the tube and the MAS is dirty would this cause the engine to think it should turn off the Stabilitrak and Traction Control and make it go into limp mode(3 cylinders running)?
Did you try thus repair??? Cause my 2015 has the exact same issues... Cant tell if its electrical or this... Seems a dozen or so things can cause this issue. And GM refuses to admit it.
@@bradbalderson8172 damn.... We bought this ome right after getting a house... May have to say fuck it and take it to a GM service center and Karen out on them.
@@Wolfwood428 we already had another car and my wife told me we would just get me a new truck so how could I say no to that. The guy at the dealership said oh another Enclave so they've had some others traded in.
What you need to do is mod that 2nd pcv - make those holes bigger, get a 2 port oil catch can - connect those two pcv lines and exit port will be at the intake manifold. Problem solved.
Peter Villalon nope- sorry. What I suggest is looked for any gm 3.6l like Chevy Camaro and Cadillac CTS vids for oil catch can tutorials. Same engine. Engine in on strait tho not transversed like ours . Make that 2nd pcv holes bigger by using a bigger drill bit . Don't trust your oil life monitor of your car - 3-4k miles oil interval only. Don't get pass 5k miles or timing chain will suffer . DI engines are harsh to engine oil- it fouls up quick. If you want longer transmission life - install trans cooler as well.
+jd5179 - Great Tips !!! SuperTech Walmart Oil is Cheap... I change ours every 3000 Miles. I do it 4X per years on each Car / Trucks... It only cost us $56.00 Per Car / Truck, per year... But I am Happy to report... For the past two years since I took over maintenance on my Dad's 4 Cars / Trucks.... All Engine are Smooth as hell !!!
Jordan Bronson I decided to go with Pennzoil, seems like majority of people recommend that with a AC Delco oil filter. I'm having a lot of trouble with the engine and tranny that am starting to tread buying this car for my wife.
+Peter Villalon - That will be up to you and what you like... As long you change it every 3000 Miles, you will be AOK since Oil are Cheap !!! As for Filters.... AC-DELCO or STP... Those are my top 2 choices.
I had the same problem. Replaced the pvc valve. 6 months later I found oil insise the air intake hose. I was told to replace the engine worn rings. Any suggestion
Oil catch can. Disconnect both PCV lines and connect them to the catch can. Then perform a thorough cleaning of the intake as well as engine oil system. Seems to have helped my 2011 186k enclave.
Pvc valve against the fire wall very hard to put out v518 I can't remove 2015 Buick enclave premium, please give me a little more information. God bless
@@metzmatu8409 What valve seal do you mean? Valve cover gasket? I think it has nothing to do with not letting the oil reach from pcv to combustion chamber as its job is to keep the oil inside the block only.
Positive crankcase ventilation creates a negative or zero pressure condition in your crankcase. You only get positive ventilation when the air being sucked from the crankcase through the PCV valve into the intake vacuum port of the intake manifold is more than the volume of air blowing by the pistons into the crank case during ignition of the fuel air mixture, you need to check your compression, excessive blow by from the pistons or a PCV valve GM makes for these cars with the tiny holes in it not designed to properly vent To put it simply your Crankcase venting needs to be modified to keep up with the gasses blowing by the pistons that is building up the pressure in the crankcase causing it to back up pushing oil to a place it should be sucking air from, which is the rubber boot. Do a compression check, it will let you know if you have wear between the cylinder and piston, or impacted rings this clogged PCV problem can cause. Blow by from the pistons causes a positive crankcase pressure, you want a negative pressure. If too much air is getting past your pistons causing the pressure, the only cure other than boring and installing new pistons is increasing the ventilation by modifying the system to allow more air flow from the crankcase into the vacuum side of the intake manifold, it is that simple. The only thing worn valve seals will cause is burning oil, you can tell they are bad if the car smokes just on start up after sitting a while or if they are really bad your car will smoke all the time but worse on start up after sitting when the oil has had time to seep down hen into the cylinder to burn. Some of these nut jobs on here do not know what they are talking about. I been doing this for 50 years I once had a 68 Corvette, I rebuilt the motor by just re ringing it due to the cost to bore the block and buying new pistons. Originally, it had a port from one valve cover that is suppose to get the venting air from the air cleaner and a PCV valve on the other valve cover going to the intake manifold. I was getting a lot of crankcase pressure due to the blow by from clearance between my pistons and cylinders from wear. I started messing around, hooked both valve cover ports to the intake and venting from both valve covers, it made my car run better and kept my crankcase vented. If your engine is worn, you could put a PCV valve in both valve covers and run the hoses from them to a Y or tee fitting then into the intake manifold. You would be sure to get positive crankcase ventilation that way, not sure how the computer might react or if it even would, my Corvette was a 68 model , pre computer and fuel injection days. I always experimented to find what worked for me. Most people have less time to play.
While doing this project I had to replace my air intake tube which is called an "air mass meter boot" but it doesn't have the hose sticking up to reconnect the hose from the V546. What is that little hose sticking up called that's on the air intake tube. That's the final part of this project and I'm trying to figure it out.
I find oil in trotle and the only thing is the pcv valve but why is oil inthe trotle some one say its a pistons problem leaking oil, hesay need to rering the pistons all 6silinders
What was the issue to be fix by doing this? My outlook 2007 feels like it loses pressure going up hill or if going less than 30 miles done change many things, check engine light is still on and it keeps jerking
It does not have 2 PCV valves LOL, Actually in truth it does not even have one PCV valve at least not in the conventional check valve design of a PCV valve , read my other post. The front one is is simply an intake port off the valve cover for the inlet Vent air it gets from the rubber boot which is on the filtered air side of the air filter. It is simple , clean air is being sucked through the motor from the front valve cover down through the crankcase and back to the rear valve cover where the 1 so called PCV valve is, then through a tube to the vacuum port on top of the intake manifold.
really hope I can find a fix. anyone have an issue with 3.6l. anytime I'm driving and if i press slightly more than a feather it shakes violently like the block is gonna fall out. forget passing too dangerous. anyone with any help is appreciated
They do not have 2 pcv valves, the plastic one is for the inlet air for the crankcase, it connects to the filtered air part of the intake. The valve is in the rear, the front has no valve in it. New redesigned gasket for rear valve cover blocks passage from crankcase to the valve except for 3 small holes, previous gasket the port was wide open. Too much oil splashing directly on the PCV valve without any baffle caused these engines to burn oil excessively. Poor designed valve covers, not the first time GM has made this mistake. No wonder they went bankrupt.
+abraham garcia Located in front by the oil filter in between the alternator and AC compressor. You might have to use a pick to unplug the electrical connector sensor and a special sensor socket tool you can buy at Harbor freight and a 3/8 extension to remove it.
Changing these two fitting is a scam. Neither part is a valve. These can be sprayed clear with carb cleaner and reinstalled. A real PCV valve has a spring and a flap inside to seal the valve. A valve opens and closes. It opens when too much pressure builds up inside the crankcase. I'm watching this in wonder. How can you pick this part up and think that it will correct your problem. Other people have posted the correct answer to this problem. Valve cover gaskets were re-designed to prevent excessive oil consumption through the PCV fitting. They need to stop calling this part a valve. It's simple a hose fitting. These engine have problems with sludge build up because they don't vent properly. I suspect that is because the rear fitting has these two small holes that plug up. That hose goes directly into the intake manifold. The front fitting goes to the air box and that nipple often breaks off or comes loose.
Yes but also the carbon build up on the valves..Use CRC GDI valve cleaner, might have to use it a few times initially to get the heavy carbon off then maintenance could be every or every other oil change.. Shitty design really but some companies are modifying the injectors to help offset the carbon issues with the GDI engines.
Try cleaning the throttle body bore with carb cleaner, it can build up gunk causing it to not allow enough intake air in to idle, the idle air sensor tries to compensate causing the fluctuating idle, be sure to open the butterfly and wipe out the bore
Mine did and I couldn’t drive for 2 days because every time I mashed the gas it would Stall and cut off . I replaced PCV valve and clean oil and still had a issue. I unplugged that sensor at air intake and it ran fine. WhTs wierd is i took the sensor out to test and it’s fine so I plugged it in with out mounting it back in its place and it ran fine but as soon as I place it back into the intake it stalls and cuts off lol so I said screw leave it out lol
@@LeavesOfGrass100 what sensor are you talking about because I have the same problem with my acadia 2012 actualy ?? can't mashed the gas pedal because there’s a cut off !!
Gracias!!!! Yo sabia que el aceite en el tubo no era normal pero mi mecanico decia que todos los carros lo tenian asi. Hare por mi mismo lo que haces en el video. No puedo esperar el resultado en mi Traverse 2011
yes it is! i clean my throttle body & air flow tubes/lines every 3 months for maximum performance on this engines and believe it or not.. every 3 mnths it has buildup ..pain in the ass ..but beats the flip side ., Long term makes them last longer if u plan on having it for while
nice video ,, i have a euro 1.6 2008 focus ,, my pcv is under the intake, i changed it recently , but there is another hose from the top of the valve cover to the air box i thought it should suck air in as a breather but it pushes air out and oil as well to the air box , you have an idea whats going on?
DIY with Petey hey buddy I have a 2016 GMC Acadia and I haven being haven’t problems my engine light comes on and off and is hesitate as I accelerated as I step on gas it feels like it’s not picking up speed like it suppose to can you help me ????
@@LuisCarrillo-pr4ju My daughter had oil inside some of her sparkplug areas. It was caused by a bad head gasket seal. Bought the kit from the local parts store and installed it. Problem solved.
Did anybody have coded thrown for this? Literally had to be towed home code thrown was P0430 which is catalyst codes as in bad converter, it wants to start so bad but won’t, Iv got it to start 2 times only ran for maybe 2 seconds and died
I use an old wheel nut long wrench and pry it of.Yes it can be a PITA to get out.. Drilling the holes or making them large was the easy part. When done I use the same long wheel nut wrench and tap the PCV valve back in and connect the hose..good luck
@@segbachan5123 I'm having a hard time getting mine back in. When you say "wheel nut long wrench" do you have a picture you can inbox me. I'm almost done with this project with the exception of the breather. Can't get ut in to save my life
@@MartezComedy what I use is the OLD fashion wheel lug nut remover.One side has the socket that you attach to the wheel nut and the other side is shaped like a large screwdrivers..This is the old type wrench that was used to remove the wheel nuts in the past..you need the screwdriver side to go between the PCV and the body of the engine to pry it out.. If not get a very long flat head screw driver this would work well also.the below website shows what i talking about except the opposite end of the nut socket is FLAT. www.amazon.com/gp/aw/d/B00BJMELJY/ref=mp_s_a_1_25?ie=UTF8&qid=1577575913&sr=1-25&pi=AC_SX236_SY340_FMwebp_QL65
@@segbachan5123 Oh I get it now. The 4 sided lug nut remover. I actually used a long flathead. Then used a pair of vice grips to tap the new one back in because it wouldn't slide in. This has become a project because I've replaced both valves and I just orded the air mass meter boot. I've also changed one of the hoses and considering changing the throttle body. I'm trying to clean the old one and change the gasket
Nice I wouldn't change the throttle body, I would run a couple tanks of gas with Chevron techron injector cleaner and use the CRC carbon cleaner FOR GDI engines through the throttle body . Do this couple times before changing your oil about a.week apart and you would see a big difference in the performance.. Cheers and happy holidays to everyone..
Has anyone else a their Buick Enclave spit and sputter when your at low speed ?? Mine does on first acceleration but seems like when I got over 20 mph it doesn’t do it ? Any ideas ??
I have a 2006 Buick Rendezvous 3.6L engine. I am trying to find the location of the PCV valve, not the breather tube on the front but the actual valve you depict here. I went to the dealership, parts department and they do not know either (no diagram). I need to replace it, oil in the breather tube to the air intake. Do you know where it might be, Thanks
Common mistake calling it a PVC valve if your a plumber too. PCV valve is the correct acronym. My problem is more serious, yea these engines were poorly designed, they came up with a fix for excessive oil consumption, now the valve cover that contains the PCV valve they have a gasket that blocks off the port from the crankcase to the valve except for 3 small holes. The previous owner of the one Im working on, she did not keep an eye on her oil, the number 5 cylinder had no compression and the car a Traverse smokes very bad, she must have ran it low on oil and overheated the heads warping a valve and destroying the valve seals, Mine is a total rebuild, fun fun. No easy PCV change for me.
$27 later replaced the tube and rear valve, super easy. im sure it will be too good to be true. still think a throttle body sensor or MAF sensor is in my future.
@@eleddie930 2 months later and good to go!!!! who woulda thunk youtube and simple fix to the rescue. and for the record, the rear valve didn't really look that dirty, certainly wasn't clogged, but a new one installed and all symptoms and warning lights off.
Vent the PCV valve out to the atmosphere. And plug the intake. Problem solved ;) And years added to your engines life ;) While you're at it. Disconnect or block off your EGR valve too ;)
AZ 8200 yes this is a common issue, if it’s not leaking on your driveway then this is most likely your issue, if there is no oil in the intake tube then it’s not your issue could be something worse like piston rings or valve seals
MrDCJSr. Well the main the reason was to get the oil pcv breather lines working properly and keeping oil out of my intake system. So, replacing did work for a while (7 months or so) but I am starting to see small amount of oil again. The permanent fix would be to mod the small oil breather tube by drilling bigger holes. I can record this when I do it soon.
The reason there is still oil being consumed could be because of worn piston rings or worn vale stem seals. Valve stem seals often require you removing the head of the engine to replace. Replacing the piston rings means getting all the way to the long block. You will have to tear the engine down completely. At that point you'll need a new head gasket and head bolts. It is possible to DIY the job but it requires the factory service manual and a lot of special tools. Don't even bother giving it to some old mechanic, you're better off sending the engine off to a machine shop that can do engine rebuilds. Most don't bother doing this....unless you plan on keeping the car forever.
I have an 08 enclave, ran good before one day I moved it in driveway and shut it off. The next day went to start it, and it wouldn't. I put my Diagnosis machine on it, and said I need to replaced the Tunning Valve, which I did. It still wont start, so i started to take top end apart to get the plugs out, to check for spark. I had a bunch of oil/water mixture in my snorkel, what could be the cause of the car not starting? Possibly the PCV breathers clogged and needs plugs and coils? Please help me!!
not hardly bud. all of our cars suck now. Im a gm man and the new cars arecrap thanks to cheap ass parts from china brought to you by the dems trade deals of past.
Earlier this year I did the modification of the PCV valve or EGR as some folks call it on my 2012 enclave.. that's on the back wall side of the engine. Basically I just drilled out the holes as many has suggested and I just pulled my air intake hose to do a CRC INTAKE spray for the valves and low and behold there was not a drop of oil in the tube..It was dry as a biscuit.. Thanks to the many people that have posted the modification whick takes no time really to do.. Here is one of the many vids I looked at and hope this works for you guys.. th-cam.com/video/vxxv_4t7fvY/w-d-xo.html
Oh and I forgot to give props to this video as well which I did watched before I was to excited to see and most importantly to SHARE my results to everyone
I wanted to add why this vehicle does not really have even 1 PCV valve by explaining what A PCV valve is and what it does. The valve parts inside a real PCV valve consist of a spring and an actual valve that has 2 purposes 1 is restricting air flow and the other is as a check valve. When an engine is at idle, the vacuum is higher which causes a lean condition because it will be pulling a lot more air through the Crankcase venting system. When a car is under load or harder acceleration, the vacuum is weaker and the blow by gasses are increased requiring more venting. The valve should meter the air down at idle by being more restrictive because on one end the suction is higher and on the other end ( being the blow by from the pistons) it is less When the car is accelerating or under load, the valve needs to open more being, less restrictive to allow more venting when there is less vacuum at one end and more blow by gasses at the other. The only purpose for the front hose coming from the front valve cover is for clean air to be supplied to flush out the crankcase gasses. The flow should NEVER be backwards where it blows oil into the intake boot UNLESS your PCV system is clogged. That is why GM putting 2 pieces of stamped metal together to look like a PCV valve with no internal parts is not really how to make a PCV valve, unless you can fool whomever you need to, in order to cut your manufacturing costs and get a vehicle out the door cheaper. In turn it causes multiple engine problems and failures down the line ruining GM's reputation. The other purpose for a real working PCV valve with internal parts is, if you ever have a backfire through your intake , especially with Turbocharged engines, without a check valve inside your PCV valve, the pressure can go right through into your crankcase and blow your seals out. I guess GM thought their tiny holes would prevent this from happening along with tiny holes preventing too much crankcase venting at idle which causes a lean condition which would have probably triggered the engine light to come on for a too lean condition. So this POS excuse for a valve was acceptable if the emissions system did not trigger an engine light What they did sacrifice was when you are under acceleration, or under load when the engine blow by is high and the vacuum is less, the venting does not increase which they have noted that after an engine has 30K on it, there is enough wear and blow by past the pistons to start causing a positive pressure in the crankcase with this Mickey Mouse venting system, something you never want because that is when oil gets thrown back into your intake boot, your seals leak oil, you burn oil causing the engine to run with low oil levels which causes a breakdown in every engine component, with the most venerable ones to wear and the first ones to experience wear being the timing chains which have tens of joints in them that when they wear cause valve timing issues and premature engine failure. The vehicle that caused me to become an expert on these was a 2011 Traverse. It reminded me of why the Government had to bail out GM back when Obama was in office. Corporate Greed has caused more problems for Americans than anything, out Politicians have made it to where Corporations selling products in the USA can get their products made cheaper in China, a communist Country accustom to Government control creating cheap labor in order to compete against Americans sending our jobs to China. Democrats and Republican Congress and Senators both are guilty of pandering to the Corporate Greed making laws to benefit them. In doing so, they are selling out the USA by profiting our next biggest World War enemy China. When Covid started I saw a sign. It said don't worry about Covid, it was made in China and nothing made in China lasts. When the German economy was bad before World War 2, it was caused by decisions the Politicians had made. Hitler came along, he monopolized on the peoples desperation and anger because of their situation by placing blame on Jews who had nothing to do with the economic failure. He used Peoples anger and built them up saying they were a greater race than all other races bringing on the second world war. Now we are in a pandemic, Our politicians on both sides are causing it because if you noticed recently, when Corporations were upset about the attempted insurrection, how they said they were temporarily suspending their contributions to politicians, it was restricted to both parties. That is because they buy off both parties and know politicians for the most part will do whatever they want them to do in order to stay in power. So Now we have the same lifer politicians ruling the country, no little guy can win because it takes millions to run a Campaign. You end up with entitled career politicians getting wealthy from Corporations who control our Government at the expense of the little people, ( the rest of us). Trump is following Hitler's play book, he is demonizing minorities as the cause for everyone's suffering, making whites feel superior to other races when it is true all races even whites have their undesirables. He is monopolizing on peoples anger and desperation caused by our Politicians decisions, decisions made based on Corporations corporate greed , to directing the fault for the problems on minorities entering the Country. Yes we need Immigration reform, but as far back as Regan, every president has given amnesty to illegals, so it is not a Democrat or Republican issue, it is both have failed us by making no reforms. A president can not do it alone, it takes all 3 branches of Government and in this Country we are divided with a filibuster rule that makes sure no laws get passed. China is on the rise, they will be the #1 super power before long. Maybe that threat is what it will take to get stupid Americans to stop fighting one another, a common enemy. Just my opinion. In the mean time the truth is all Politicians both parties only objective is staying in power with their perks, Until this Country steps up, gets rid of Gerrymandering, Citizens United along with creating Campaign finance reform, creating term limits and making Lobbying illegal. This Country will go down like Rome. I do not support either Party, both have been reduced to one another's lows. Republican Politicians now are willing to sell out our Democracy to save their Political power even if it means supporting Authoritarian Rule over Democracy, they are saying a President in Office can do anything he wants prior to exiting office, and he will have no consequences. This should scare the hell out of everyone, because if this ever happens and the Military leaders go along with it, good bye USA. A self described Law an Order Authoritarian will now be solely dictating to all of us how we must live. He will make the laws like it or not. So when your Enclave, Traverse, or Acadia breaks down, remember the root cause is the love of money and the people making decisions for the Corporations and against the rest of us in Politics. When greed rules our country, we all lose and our PCV valves end up sucking, just not the way they are suppose to. Remember this is a place for comments and opinions. Not me telling you how to think. Knowledge is wisdom!
There is a lot more to this problem than what he is fixing. The 3.6 liter High feature engine on the Traverse Enclave and Acadia had factory service bulletin's on this problem. I don't know what kind of engineers the colleges are putting out anymore but what GM did was either out of stupidity or greed along with bad engineering.
This is the story, GM had a lot of in warranty complaints about these engines burning oil and all the problems that came with it caused a lot of service bulletins.
The Bank 1 side of the motor facing the firewall had a opening coming from the crankcase leading up to the valve cover to what they called a PCV ( Positive Crankcase Ventilation) valve.
There was no baffle to keep oil from the crankcase from hitting the 2 tiny holes in in bottom of what they call a valve that is not a valve at all. What GM did to cut costs was they just stamped out 2 pieces of metal to look like a PCV valve with no valve inside, instead they made 2 tiny holes in one end and 1 slightly larger ( but still too small) hole in the other end for what reason I do not know because it is suppose to be a check valve, I guess engineers thought making real small holes simulated a sort of check valve, but unfortunately it ended up checking both directions to the point of being an ideal place to clog.
Crankcase gases (if not vented) can make your oil get saturated with blow by gasses and residual fuel from the ignition gasses that blow by the pistons each time a cylinder fires, which if not vented cause your oil to turn black.
By Sucking clean air from the boot (where he said the oil collected) down into the front valve cover, down through the crankcase up to the PCV valve on the other valve cover and right into the direct vacuum of the intake to be burned,
that is what keeps the engine clean.
A PCV valve should have good air flow to accomplish this, A (REAL) PCV valve has a check valve to only allow the flow of crankcase gasses in one direction. The piece of junk fake PCV valve GM put in these motors has no check valve inside, their stupid idea instead was to make the valve holes smaller. Next I explain why this system is a problem and GM's attempt to fix it.
The tiny holes in bottom and top of the so called PCV valve were so small and the port from the crankcase leading to the valve was too big, this was allowing oil to be splashed directly on the bottom 2 holes of the PCV valve clogging them. GM put out service bulletins as a fix.
First they changed the gasket for the firewall side valve cover to block off the port leading to the PCV valve, the rubber part of the GM modified gasket blocked off the port to the PCV valve except for small 3 holes in the rubber gasket to still allow crankcase gasses to get to the PCV valve,.
The next service bulletin was to drill out the top hole in the (so called Valve) with a 7/64ths inch drill bit, and each of the 2 bottom holes with a 5/64 inch bit.
This was their attempt, a cheap fix trying to keep the crankcase vent system from clogging because when it clogs, it clogs at the end of the PCV vent system where the engine suction is.
Then what happens is, crankcase pressure builds up and blows oil backwards through the front valve cover fitting that leads up to rubber boot throwing oil into the intake..
A poorly designed factory PCV valve clogging caused all these problems, premature dirty oil , low oil level because oil was being slowly burned through the intake before you would normally change your oil, causing low oil levels in the engines, and
the lower oil levels meant the oil got hotter, broke down quicker and provided less lubrication and more heat to the timing chains so they would tend to prematurely stretch causing other engine codes and the need for replacing them.
I recently rebuilt one of these motors, the owner was a woman, she was not aware it was burning oil, went low on oil and burnt up the motor, it had barely 100k on it. A 35k dollar car lasting her 7 years.
I hope GM does better with electric cars if their greed in manufacturing costs does not make them shoot themselves in the foot.
I use to be a Chevy man, GM has gone to hell, This engine they required you to replace rod bolts, head bolts and flex plate bolts because they were good for one tightening, they were not cheap, also they told you to replace 2 stainless steel fuel lines.
It made the rebuild almost not worth doing it. The fuel lines looked good to me, I reused them and made sure there were no leaks, had no problems. But I was not taking a chance with head bolts and rod bolts and flex plate bolts, I kind of suspect GM made just the hard bolts to get to, the ones you had to replace because they stretched ( for profit) to sell more parts that you could not find anywhere else because they were GM specialty bolt sizes that only GM made.
The only thing high feature about this motor was it's poor design with a cheaply made poorly designed PCV system.
I found a real PCV valve when I rebuilt this engine, it had a large hole in it and a check valve. I guarantee my modification is better than GMs, but you do need the modified gasket for the rear valve cover to keep oil from directly hitting the PCV valve
Such a shame with these vehicles, unfortunately I got one. Thanks so much Frank for the clear explanation
So drilling the holes in the pcv would help I have 2010 Malibu with the 3.6
Is there not a way to sue or force these sum bit ches to fix this shit? Man what was I thinking buying another gm,,,, what brand do you like now that doesn’t seem to have a bunch of corrupt mfs at the top of the company fkn the little guy? Or is there even any? 😂 really tho I’m about to buy a horse and buggy
Where did you find the PCV valve
Im going through the same now Mel with my gf's malibu 3.6 ltr. Was wondering if you might have a part number for the PCV Valve you've found for your engine build? Thanks for all your insight
Hey Peter just a heads up you should have drilled out your new PCV valve with a 7/64 drill bit on the top hole and a 5/64 drill bit on the 2 bottom holes. Gm posted this upgrade several years ago to help alleviate the oil problem in the throttle body snorkel. I hope you all find this useful. Good luck.
Just drilled mine 1/8 and added a cheap e-bay catch can and blocked off the hole in the intake. This thing need to breath
Is this real?
Good info. Thanks.
Still does it with homes drilled
2016 Acadia GMC intake removal and installation
Perfect instructional video. Thanks for sharing. Some personal experience points; as a safety precaution, remove the hose and wiring harness from the purge valve (in front of the front pcv breather.) That hose stem is plastic and breaks easy. If that breaks, you'll know it because when you fill up the tank, it'll take a while to start (cranks a lot longer before it starts.) Just push in the little green tab and the hose will release from the stem. Next, He's right about the back one being a bear to get out. I ended up clamping on vice grips and used a flathead screw driver under to pry out. I am in no way an expert on this type stuff, but this video worked and removed my codes (haven't come back in a while.....yet.)
I replaced the plastic hose with a rubber one because it was difficult to find
Well done. Had the same problem on my 2008 GMC Acadia, but I didn't know there were 2 PVC valves until I watched your video. Will be changing them soon! Appreciate the sharing!
Been trying to solve this problem for over a year.... cleaned and reconnected the pcv valve and no traction control/stabilitrac error in 70 miles! Thank you!
Glad I could help
1st gen Enclave was hands down, the biggest PoS vehicle I've owned in my life. No doubts.
I agree, left a sour taste for GM in general. Dont think I'll be buying a one for a very long time.
You come here to say because you had to make a $20 maintenance repair?
@@cliffordcolvard9495 Many many many other problems. He never even mentioned the $20 fix. Defend this model. You can't, because he's right.
Huh no issues with my 17 Maintenance goes a long way
PVC (:46 and 1:06 in the video) is polyvinyl chloride, a type of plastic. The valve you replaced is the PCV, positive crankcase ventilation.
The problem exist from fault valve cover gasket a. This was a recall on enclaves 3.6 v6 engine. When buick installed the gaskets they where opened section gaskets, they later realized that a section of the gasket should have been sealed and closed to prevent the oil mistake. It causes oil to build up inside your snorkel and breather taking from the oil it needs to lube the timing chain properly and causes the chains to stretch and jump time due to an access in heat build up. It can inturn bend a valve through jumping time.
I am so glad I came across this video , that explains why mine was just like your tube , I was thinking like how in the heck did this happen , I ordered my new PCV Valve today , can’t wait to install it and see the difference
this is exactly what happened to my 2014 buick enclave , thanks for vid ...
BRO! Thank you for this video. I just changed the air filter in my Outlook and was like WTF is all this yellow oil. Im going to try this out and prayerfully it fixes the issue.
Update
The issue is not the pcv valve. The issue comes form the valve cover gasket that you need to replace. New valve cover gasket have a smaller holes that will not oil suck through the pcv valve.
hey man do you have a part number for that
No I think this do it as well, gmc put out a bulletin on it
Be sure to let the engine come up to temp before removing the rear valve. Makes removal A LOT easier. I initially started the project with the engine cold and almost snapped off the top of the valve...that would've been ugly.
read this before i removed it, came out easy peasy...and fixed the problem!!
Mine will not budge tried everything hot engine pried on the lip with a screwdriver used vice grips will not budge whatsoever. I'm afraid to break it.
@@widtrak77 I'm in the process of doing mine now. I removed while the engine was cold. I have to tap with flat head screwdriver and hammer gently but it came out
@@MartezComedy I'll give it another shot. I'm going to need to pry from under that lip. I'm still afraid of breaking it. I don't know why it is in there so damn tight. Someone on the Traverse Forum said there's threadlocker holding it in. I think is only for use on threads doesn't this have a smooth surface in there?
@@widtrak77 No threads on mime but I'm working on an acadia. Theres 1 thread along the shaft of the valve. I put a flathead up against that and gently tapped it out.
Thank you, the dealer had us thinking it was a major job...
😮 I think GM are some of the best cars on the market
It's called a P C V valve positive crankcase ventilation
Why can't you leave it off if it runs drain oil into the intake? Then put a longer hose on the breather tube and run it to a safe place for it to drip.
Great video I couldn’t find any others that showed it like this thanks
I replaced these and installed a oil catch can say goodbye to oil and carbon build up also replaced throttle body after I did a seafoam cleanse man my 09 traverse runs like new and im at 150+ miles
Lewisfam23 my 09 just hit 150 recently...its sluggish and i sudpect timing chain has stretched. Gonna clean MAF sensor and throttle body and see if it makes a difference. May I ask what made you replace yours??
chevyornuthin actually just reading up on forums and getting prewarned but the oil catch can will definitely help if possible grab one with a breather attached it will stop the oil
Lewisfam23 I meant what made you replace your throttle body
chevyornuthin actually i saw a video online and i just bought one and replaced it just incase but i did notice a huge difference so it did need it i Didn't need to do the so called reprogram i just put it on and drove a few miles and boy let me tell ya mpg,s went up but i also replaced all oxygen sensors and knock sensor all at the same time as well
Catch cans don't prevent carbon build up. They only help prolong the process. I guarantee there is just as much if not more oil going by than what is being caught by the can. I don't care what brand of can. Don't believe me? Try running two catch cans in a series on the same PCV valve or breather side.
But I do believe catch cans are only going to get better as time goes. The technology can only improve. Every day someone is coming out with a new baffle or can design. Plus the market is saturated with companies that manufacture them so that only makes it better for us the consumers.
oreilly now has these. Just ask for part #V546 $23.99,....and part#V518 $23.99. These are the front and the rear "whatever" yo wanna call them. They are not refered to as pcv valves though.
I probably need to do this to my daughters 09 Acadia.
Attempting this weekend. Wish me luck
Got it done!
Saturn doesn't have that valve or at least is not the same as the Acadia, the autoparts store tells me that 2007 saturn doesn't have PCV valve.
Did this stop the vehicle from smoking and or burning oil?
Quality gm engineering
Bullshit
no quality bullshit union engineers!!! unions suck now. poor customer service and production.
You responders did not get it He was being funny. I think it has more to do with Corporate Greed and stock price. Cutting costs and quality for profit
Not here's the craziest thing about that took that snorkel off it was for the oil and I clean the throttle body and I cleaned the snorkel l out but I never knew about the PCV valve this is some good information now I got to go back and replace it
2014 traverse ...rear valve looks like is built in to...not coming out..any suggestions?
Glad I saw this video! I was wondering why I had all that oil. Gonna try soaking the metal valve first to save the $16. Cuz I'm cheap AF.
Update: Just did this while flushing my power steering. The rear valve is completely hollow. No screen or filter paper. I drilled all 3 holes about 2x bigger to 7/64. I used a metal body panel pry bar fork tool to pluck it out really easy. I had it from an Amazon kit cheap like $6. A gardening weed lifter fork from Home Depot would work also. I sprayed some brake cleaner on it and reinstalled with spark plug anti seize. Tapped it in with a small hammer. Hope this keeps the oil out of my air snorkel.
How did it go? I know it's 2yrs back. Maybe I can try what you did hehe
@bathanmark valve hasn't clogged again AFIK. But I broke the front snorkle into the air intake and ended up just disconnecting it / removing it. Put a plug on the snorkle side and a sock over the engine side that just vents to the atmosphere now. No loss of power or emissions lights. I think it's safer so no chance of oil going into the cylinders. Just dirtier for the atmosphere I guess.
Soo sad just how much that PVC valve affected the motor. A low cost part ignored by many people.
If there is oil in the tube and the MAS is dirty would this cause the engine to think it should turn off the Stabilitrak and Traction Control and make it go into limp mode(3 cylinders running)?
Did you try thus repair??? Cause my 2015 has the exact same issues... Cant tell if its electrical or this... Seems a dozen or so things can cause this issue. And GM refuses to admit it.
@@Wolfwood428 I tried it and several other things, ended up trading it in and bought a new truck.
@@bradbalderson8172 damn.... We bought this ome right after getting a house... May have to say fuck it and take it to a GM service center and Karen out on them.
@@Wolfwood428 we already had another car and my wife told me we would just get me a new truck so how could I say no to that. The guy at the dealership said oh another Enclave so they've had some others traded in.
I have an 09 Buick enclave , I can’t get the back PCV out !!
Me neither , I’ve tried several times , it won’t come out , ugh
So by having this problem does it make your rpms idle up and down?
What you need to do is mod that 2nd pcv - make those holes bigger, get a 2 port oil catch can - connect those two pcv lines and exit port will be at the intake manifold. Problem solved.
Do you have a Vid I can see?
Peter Villalon nope- sorry. What I suggest is looked for any gm 3.6l like Chevy Camaro and Cadillac CTS vids for oil catch can tutorials. Same engine. Engine in on strait tho not transversed like ours . Make that 2nd pcv holes bigger by using a bigger drill bit . Don't trust your oil life monitor of your car - 3-4k miles oil interval only. Don't get pass 5k miles or timing chain will suffer . DI engines are harsh to engine oil- it fouls up quick. If you want longer transmission life - install trans cooler as well.
+jd5179 - Great Tips !!! SuperTech Walmart Oil is Cheap... I change ours every 3000 Miles. I do it 4X per years on each Car / Trucks... It only cost us $56.00 Per Car / Truck, per year... But I am Happy to report... For the past two years since I took over maintenance on my Dad's 4 Cars / Trucks.... All Engine are Smooth as hell !!!
Jordan Bronson I decided to go with Pennzoil, seems like majority of people recommend that with a AC Delco oil filter. I'm having a lot of trouble with the engine and tranny that am starting to tread buying this car for my wife.
+Peter Villalon - That will be up to you and what you like... As long you change it every 3000 Miles, you will be AOK since Oil are Cheap !!! As for Filters.... AC-DELCO or STP... Those are my top 2 choices.
I had the same problem. Replaced the pvc valve. 6 months later I found oil insise the air intake hose. I was told to replace the engine worn rings. Any suggestion
Oil catch can. Disconnect both PCV lines and connect them to the catch can. Then perform a thorough cleaning of the intake as well as engine oil system. Seems to have helped my 2011 186k enclave.
It’s the rear valve cover gasket that you need to replace. This is not the real fix. New update cover gasket will completely eliminate this issue.
@@Andr1019_ alot of black smoke. I had to replace the engine.
Pvc valve against the fire wall very hard to put out v518 I can't remove 2015 Buick enclave premium, please give me a little more information. God bless
,,,in the pcv valve ,,,is it normal that there is no oil can pass thru in the pcv valve hose?,,
If you still get oil into air intake housing after pcv valve replacement what does it point to?
Valve seal problem
@@metzmatu8409 What valve seal do you mean? Valve cover gasket? I think it has nothing to do with not letting the oil reach from pcv to combustion chamber as its job is to keep the oil inside the block only.
Positive crankcase ventilation creates a negative or zero pressure condition in your crankcase. You only get positive ventilation when the air being sucked from the crankcase through the PCV valve into the intake vacuum port of the intake manifold is more than the volume of air blowing by the pistons into the crank case during ignition of the fuel air mixture, you need to check your compression, excessive blow by from the pistons or a PCV valve GM makes for these cars with the tiny holes in it not designed to properly vent
To put it simply your Crankcase venting needs to be modified to keep up with the gasses blowing by the pistons that is building up the pressure in the crankcase causing it to back up pushing oil to a place it should be sucking air from, which is the rubber boot.
Do a compression check, it will let you know if you have wear between the cylinder and piston, or impacted rings this clogged PCV problem can cause. Blow by from the pistons causes a positive crankcase pressure, you want a negative pressure. If too much air is getting past your pistons causing the pressure, the only cure other than boring and installing new pistons is increasing the ventilation by modifying the system to allow more air flow from the crankcase into the vacuum side of the intake manifold, it is that simple. The only thing worn valve seals will cause is burning oil, you can tell they are bad if the car smokes just on start up after sitting a while or if they are really bad your car will smoke all the time but worse on start up after sitting when the oil has had time to seep down hen into the cylinder to burn. Some of these nut jobs on here do not know what they are talking about. I been doing this for 50 years
I once had a 68 Corvette, I rebuilt the motor by just re ringing it due to the cost to bore the block and buying new pistons. Originally, it had a port from one valve cover that is suppose to get the venting air from the air cleaner and a PCV valve on the other valve cover going to the intake manifold. I was getting a lot of crankcase pressure due to the blow by from clearance between my pistons and cylinders from wear. I started messing around, hooked both valve cover ports to the intake and venting from both valve covers, it made my car run better and kept my crankcase vented.
If your engine is worn, you could put a PCV valve in both valve covers and run the hoses from them to a Y or tee fitting then into the intake manifold. You would be sure to get positive crankcase ventilation that way, not sure how the computer might react or if it even would, my Corvette was a 68 model , pre computer and fuel injection days. I always experimented to find what worked for me. Most people have less time to play.
@@melfrank8379 thanks for your knowledge
@@melfrank8379Mel did you actually find a working PCV valve for your enclave..I don't see why cheapo GM can't come up with a good actual valve really
From what years are these part compatible with? Ive been searching for 2017 enclave and the rear orifise dont show nothing for that year
While doing this project I had to replace my air intake tube which is called an "air mass meter boot" but it doesn't have the hose sticking up to reconnect the hose from the V546. What is that little hose sticking up called that's on the air intake tube. That's the final part of this project and I'm trying to figure it out.
Genuine GM Parts 12630279 Positive Crankcase Ventilation (PCV) Tube
Part V518 will not fit in the hole in my valve cover it is different then the original one that was in it. not sure what it the problem 😢
I find oil in trotle and the only thing is the pcv valve but why is oil inthe trotle some one say its a pistons problem leaking oil, hesay need to rering the pistons all 6silinders
Thanks this video was helpful i have this problem right now
You don't need to clean the second line?
Mi Acadia prende el service tracción control y el stability service y no le encuentran nada, podrá ser el problema que enseñas de aceite?
Ese es el problema amigo.
Lo mismo le pasaba a mi traverse.
What was the issue to be fix by doing this? My outlook 2007 feels like it loses pressure going up hill or if going less than 30 miles done change many things, check engine light is still on and it keeps jerking
helped out a lot, thanks!
Thanks friend for your video because I don’t fiend the válvula thanks from CALIFORNIA
Thanks for the information! Should be an easy fix.
It does not have 2 PCV valves LOL, Actually in truth it does not even have one PCV valve at least not in the conventional check valve design of a PCV valve , read my other post. The front one is is simply an intake port off the valve cover for the inlet Vent air it gets from the rubber boot which is on the filtered air side of the air filter.
It is simple , clean air is being sucked through the motor from the front valve cover down through the crankcase and back to the rear valve cover where the 1 so called PCV valve is, then through a tube to the vacuum port on top of the intake manifold.
really hope I can find a fix. anyone have an issue with 3.6l. anytime I'm driving and if i press slightly more than a feather it shakes violently like the block is gonna fall out. forget passing too dangerous.
anyone with any help is appreciated
They do not have 2 pcv valves, the plastic one is for the inlet air for the crankcase, it connects to the filtered air part of the intake. The valve is in the rear, the front has no valve in it. New redesigned gasket for rear valve cover blocks passage from crankcase to the valve except for 3 small holes, previous gasket the port was wide open. Too much oil splashing directly on the PCV valve without any baffle caused these engines to burn oil excessively. Poor designed valve covers, not the first time GM has made this mistake. No wonder they went bankrupt.
By any chance you know where the oil pressure sensor is located at. Thanks
+abraham garcia Located in front by the oil filter in between the alternator and AC compressor. You might have to use a pick to unplug the electrical connector sensor and a special sensor socket tool you can buy at Harbor freight and a 3/8 extension to remove it.
Peter Villalon thank you. Very helpful
What if pcv is replaced and you’re still having this issue
The permanent fix is replacing the intake cover as I believe they made a second version that fixed that.
Changing these two fitting is a scam. Neither part is a valve. These can be sprayed clear with carb cleaner and reinstalled.
A real PCV valve has a spring and a flap inside to seal the valve. A valve opens and closes. It opens when too much pressure
builds up inside the crankcase. I'm watching this in wonder. How can you pick this part up and think that it will correct your
problem. Other people have posted the correct answer to this problem. Valve cover gaskets were re-designed to prevent
excessive oil consumption through the PCV fitting. They need to stop calling this part a valve. It's simple a hose fitting.
These engine have problems with sludge build up because they don't vent properly. I suspect that is because the rear fitting
has these two small holes that plug up. That hose goes directly into the intake manifold. The front fitting goes to the air box
and that nipple often breaks off or comes loose.
Did this actually fix the problem? Update?
Yes for a period of time until making the holes bigger. The real permanent is replacing the whole cover to a redesigned.
Could this potentially be the reason for fluctuating rpms on the acadias and enclaves also??
Yes good possibility
Yes but also the carbon build up on the valves..Use CRC GDI valve cleaner, might have to use it a few times initially to get the heavy carbon off then maintenance could be every or every other oil change.. Shitty design really but some companies are modifying the injectors to help offset the carbon issues with the GDI engines.
Try cleaning the throttle body bore with carb cleaner, it can build up gunk causing it to not allow enough intake air in to idle, the idle air sensor tries to compensate causing the fluctuating idle, be sure to open the butterfly and wipe out the bore
It 2 years comment, But it does. I clean the throttle body and it run better. Got oil in my air intake. Might have to change the pcv also.
By any chance before you did this to you’re car did the RPM’s jump at all when cold
Nope just oil in the intake
Mine did and I couldn’t drive for 2 days because every time I mashed the gas it would Stall and cut off . I replaced PCV valve and clean oil and still had a issue. I unplugged that sensor at air intake and it ran fine. WhTs wierd is i took the sensor out to test and it’s fine so I plugged it in with out mounting it back in its place and it ran fine but as soon as I place it back into the intake it stalls and cuts off lol so I said screw leave it out lol
@@LeavesOfGrass100 what sensor are you talking about because I have the same problem with my acadia 2012 actualy ?? can't mashed the gas pedal because there’s a cut off !!
Great video 👌👍
Great video , explained an showed very well , thanks
Gracias!!!! Yo sabia que el aceite en el tubo no era normal pero mi mecanico decia que todos los carros lo tenian asi. Hare por mi mismo lo que haces en el video. No puedo esperar el resultado en mi Traverse 2011
De nada amigo!
Thank you very much
How do you get an angle to use the pliers to pop off the valve?
I took a chisel/ flathead to pry up and it came out with ease
Hello, what year were you working on and is this the resolution for a rough idle?
yes it is! i clean my throttle body & air flow tubes/lines every 3 months for maximum performance on this engines and believe it or not.. every 3 mnths it has buildup ..pain in the ass ..but beats the flip side ., Long term makes them last longer if u plan on having it for while
Just did all of this,,ty,,,how long did it last
Drill the 2 little holes bigger and u won't have problem again
Where lol
@@jeffjuhl8824 drill holes in the tiny little new part?
I’m having trouble getting the breather back in! How did u do it?
@@chrsrbnsn14 lubricant,,alittle around the edge👍
nice video ,, i have a euro 1.6 2008 focus ,, my pcv is under the
intake, i changed it recently , but there is another hose from the top
of the valve cover to the air box i thought it should suck air in as a
breather but it pushes air out and oil as well to the air box , you have
an idea whats going on?
I have a similar problem. Question, did you find oil in the spark plugs too? Cuz my has oil in the spark plug chamber in addition to the air intake.
No oil in the sparkpkugs, just in the intake tube.
Thank you, so I guess I’m going to have to change the valves gaskets.
DIY with Petey hey buddy I have a 2016 GMC Acadia and I haven being haven’t problems my engine light comes on and off and is hesitate as I accelerated as I step on gas it feels like it’s not picking up speed like it suppose to can you help me ????
@@LuisCarrillo-pr4ju My daughter had oil inside some of her sparkplug areas. It was caused by a bad head gasket seal. Bought the kit from the local parts store and installed it. Problem solved.
I think my Acadia has both issues the gasket issues and the one shown on this video. I also had the valve gaskets replaced. Thank you
Did anybody have coded thrown for this? Literally had to be towed home code thrown was P0430 which is catalyst codes as in bad converter, it wants to start so bad but won’t, Iv got it to start 2 times only ran for maybe 2 seconds and died
How you get the new one in ,,in back,,,hard,,,was hard coming out too
I use an old wheel nut long wrench and pry it of.Yes it can be a PITA to get out.. Drilling the holes or making them large was the easy part.
When done I use the same long wheel nut wrench and tap the PCV valve back in and connect the hose..good luck
@@segbachan5123 I'm having a hard time getting mine back in. When you say "wheel nut long wrench" do you have a picture you can inbox me. I'm almost done with this project with the exception of the breather. Can't get ut in to save my life
@@MartezComedy what I use is the OLD fashion wheel lug nut remover.One side has the socket that you attach to the wheel nut and the other side is shaped like a large screwdrivers..This is the old type wrench that was used to remove the wheel nuts in the past..you need the screwdriver side to go between the PCV and the body of the engine to pry it out..
If not get a very long flat head screw driver this would work well also.the below website shows what i talking about except the opposite end of the nut socket is FLAT.
www.amazon.com/gp/aw/d/B00BJMELJY/ref=mp_s_a_1_25?ie=UTF8&qid=1577575913&sr=1-25&pi=AC_SX236_SY340_FMwebp_QL65
@@segbachan5123 Oh I get it now. The 4 sided lug nut remover. I actually used a long flathead. Then used a pair of vice grips to tap the new one back in because it wouldn't slide in. This has become a project because I've replaced both valves and I just orded the air mass meter boot. I've also changed one of the hoses and considering changing the throttle body. I'm trying to clean the old one and change the gasket
Nice I wouldn't change the throttle body, I would run a couple tanks of gas with Chevron techron injector cleaner and use the CRC carbon cleaner FOR GDI engines through the throttle body
. Do this couple times before changing your oil about a.week apart and you would see a big difference in the performance.. Cheers and happy holidays to everyone..
Awesome thank you🙌🙌
Has anyone else a their Buick Enclave spit and sputter when your at low speed ?? Mine does on first acceleration but seems like when I got over 20 mph it doesn’t do it ? Any ideas ??
great video. don't you need to clean inside the pcv valve as well before installing it?
2007 acadia two blade plug cut
Does this affect gas mileage?
If you have oil in the intake check piston rings
How ??
I have a 2006 Buick Rendezvous 3.6L engine. I am trying to find the location of the PCV valve, not the breather tube on the front but the actual valve you depict here. I went to the dealership, parts department and they do not know either (no diagram). I need to replace it, oil in the breather tube to the air intake. Do you know where it might be, Thanks
Common mistake calling it a PVC valve if your a plumber too. PCV valve is the correct acronym. My problem is more serious, yea these engines were poorly designed, they came up with a fix for excessive oil consumption, now the valve cover that contains the PCV valve they have a gasket that blocks off the port from the crankcase to the valve except for 3 small holes. The previous owner of the one Im working on, she did not keep an eye on her oil, the number 5 cylinder had no compression and the car a Traverse smokes very bad, she must have ran it low on oil and overheated the heads warping a valve and destroying the valve seals, Mine is a total rebuild, fun fun. No easy PCV change for me.
Pvc ????
Put a catch can on it
$27 later replaced the tube and rear valve, super easy. im sure it will be too good to be true. still think a throttle body sensor or MAF sensor is in my future.
nocoolname32 what’s the status was it to good to be true?
@@eleddie930 2 months later and good to go!!!! who woulda thunk youtube and simple fix to the rescue. and for the record, the rear valve didn't really look that dirty, certainly wasn't clogged, but a new one installed and all symptoms and warning lights off.
Just spray the sensor with electronics cleaner.
The title also mean you need an OIL CATCH CAN.
Where did you have to order the parts from?
I don't remember where but your local auto parts store or rockauto online should have them.
Were did you order the parts
Rally's and autozone don't carry those parts
You need to drill out the holes a bit bigger 7 /64 and top hole 1/8 inch
Top hole - 7/64
Bottom holes - 5/64
@@MsSinner13 update pls?
What holes?
Vent the PCV valve out to the atmosphere. And plug the intake. Problem solved ;) And years added to your engines life ;) While you're at it. Disconnect or block off your EGR valve too ;)
Very helpful
Is it a slove for a car which oil burning thank you
AZ 8200 yes this is a common issue, if it’s not leaking on your driveway then this is most likely your issue, if there is no oil in the intake tube then it’s not your issue could be something worse like piston rings or valve seals
Can just make bigger whole as the hose ? ,,,,,so can make breathing much easy er ,,,,,
did your car run better after doing this?
MrDCJSr. Well the main the reason was to get the oil pcv breather lines working properly and keeping oil out of my intake system. So, replacing did work for a while (7 months or so) but I am starting to see small amount of oil again.
The permanent fix would be to mod the small oil breather tube by drilling bigger holes. I can record this when I do it soon.
MrDCJSr. Just posted the video on the PCV mod, that should finally resolve the oil build up.
Thanks. I will check that after replacing a ignition coil tomorrow. Merry Christmas
El Payaso No Tiene Pene th-cam.com/video/wQAUgD0yJpQ/w-d-xo.html
The reason there is still oil being consumed could be because of worn piston rings or worn vale stem seals. Valve stem seals often require you removing the head of the engine to replace. Replacing the piston rings means getting all the way to the long block. You will have to tear the engine down completely. At that point you'll need a new head gasket and head bolts. It is possible to DIY the job but it requires the factory service manual and a lot of special tools. Don't even bother giving it to some old mechanic, you're better off sending the engine off to a machine shop that can do engine rebuilds. Most don't bother doing this....unless you plan on keeping the car forever.
Where you bay the parts
I usually buy from rockauto
I have an 08 enclave, ran good before one day I moved it in driveway and shut it off. The next day went to start it, and it wouldn't. I put my Diagnosis machine on it, and said I need to replaced the Tunning Valve, which I did. It still wont start, so i started to take top end apart to get the plugs out, to check for spark. I had a bunch of oil/water mixture in my snorkel, what could be the cause of the car not starting? Possibly the PCV breathers clogged and needs plugs and coils? Please help me!!
What is the name of the hose that goes into the breather that he put in at the end
PCV or Pressure Control Vent. It connects the crank case to the valve case so there is no pressure differential.
Very helpful!!
Oil tube catch can
Can I just clean the the PCs breather or Do I have to replace it?
You can but they are pretty cheap to replace.
This for the info
dont spray throttle body cleaner on plastic or rubber use compressed air or replace it
Why cant you just clean them aswell. The pilot is just gonna get back into the valve again. Very poor design.
Hi do you know where the PVC pipe is in a GMC Envoy 2002 and how to replace it
dfg to use that clener
guys
GM just need to stop making Vehicles altogether. They produce one of the worst vehicles in the US and top 3 worst car world
not hardly bud. all of our cars suck now. Im a gm man and the new cars arecrap thanks to cheap ass parts from china brought to you by the dems trade deals of past.
Do you realise how many brands GM own. Your American cars may be complete shite, but GM are still making some pretty decent vehicles in Europe.
Earlier this year I did the modification of the PCV valve or EGR as some folks call it on my 2012 enclave.. that's on the back wall side of the engine. Basically I just drilled out the holes as many has suggested and I just pulled my air intake hose to do a CRC INTAKE spray for the valves and low and behold there was not a drop of oil in the tube..It was dry as a biscuit..
Thanks to the many people that have posted the modification whick takes no time really to do..
Here is one of the many vids I looked at and hope this works for you guys..
th-cam.com/video/vxxv_4t7fvY/w-d-xo.html
Oh and I forgot to give props to this video as well which I did watched before I was to excited to see and most importantly to SHARE my results to everyone
Did you change the new updated valve cover gasket
@@Andr1019_ no.
I wanted to add why this vehicle does not really have even 1 PCV valve by explaining what A PCV valve is and what it does.
The valve parts inside a real PCV valve consist of a spring and an actual valve that has 2 purposes 1 is restricting air flow and the other is as a check valve.
When an engine is at idle, the vacuum is higher which causes a lean condition because it will be pulling a lot more air through the Crankcase venting system.
When a car is under load or harder acceleration, the vacuum is weaker and the blow by gasses are increased requiring more venting.
The valve should meter the air down at idle by being more restrictive because on one end the suction is higher and on the other end ( being the blow by from the pistons) it is less
When the car is accelerating or under load, the valve needs to open more being, less restrictive to allow more venting when there is less vacuum at one end and more blow by gasses at the other.
The only purpose for the front hose coming from the front valve cover is for clean air to be supplied to flush out the crankcase gasses. The flow should NEVER be backwards where it blows oil into the intake boot UNLESS your PCV system is clogged.
That is why GM putting 2 pieces of stamped metal together to look like a PCV valve with no internal parts is not really how to make a PCV valve, unless you can fool whomever you need to, in order to cut your manufacturing costs and get a vehicle out the door cheaper. In turn it causes multiple engine problems and failures down the line ruining GM's reputation.
The other purpose for a real working PCV valve with internal parts is, if you ever have a backfire through your intake , especially with Turbocharged engines, without a check valve inside your PCV valve, the pressure can go right through into your crankcase and blow your seals out.
I guess GM thought their tiny holes would prevent this from happening along with tiny holes preventing too much crankcase venting at idle which causes a lean condition which would have probably triggered the engine light to come on for a too lean condition. So this POS excuse for a valve was acceptable if the emissions system did not trigger an engine light
What they did sacrifice was when you are under acceleration, or under load when the engine blow by is high and the vacuum is less, the venting does not increase which they have noted that after an engine has 30K on it, there is enough wear and blow by past the pistons to start causing a positive pressure in the crankcase with this Mickey Mouse venting system, something you never want because that is when oil gets thrown back into your intake boot, your seals leak oil, you burn oil causing the engine to run with low oil levels which causes a breakdown in every engine component, with the most venerable ones to wear and the first ones to experience wear being the timing chains which have tens of joints in them that when they wear cause valve timing issues and premature engine failure.
The vehicle that caused me to become an expert on these was a 2011 Traverse. It reminded me of why the Government had to bail out GM back when Obama was in office.
Corporate Greed has caused more problems for Americans than anything, out Politicians have made it to where Corporations selling products in the USA can get their products made cheaper in China, a communist Country accustom to Government control creating cheap labor in order to compete against Americans sending our jobs to China.
Democrats and Republican Congress and Senators both are guilty of pandering to the Corporate Greed making laws to benefit them. In doing so, they are selling out the USA by profiting our next biggest World War enemy China.
When Covid started I saw a sign. It said don't worry about Covid, it was made in China and nothing made in China lasts.
When the German economy was bad before World War 2, it was caused by decisions the Politicians had made. Hitler came along, he monopolized on the peoples desperation and anger because of their situation by placing blame on Jews who had nothing to do with the economic failure. He used Peoples anger and built them up saying they were a greater race than all other races bringing on the second world war.
Now we are in a pandemic, Our politicians on both sides are causing it because if you noticed recently, when Corporations were upset about the attempted insurrection, how they said they were temporarily suspending their contributions to politicians, it was restricted to both parties. That is because they buy off both parties and know politicians for the most part will do whatever they want them to do in order to stay in power.
So Now we have the same lifer politicians ruling the country, no little guy can win because it takes millions to run a Campaign. You end up with entitled career politicians getting wealthy from Corporations who control our Government at the expense of the little people, ( the rest of us).
Trump is following Hitler's play book, he is demonizing minorities as the cause for everyone's suffering, making whites feel superior to other races when it is true all races even whites have their undesirables. He is monopolizing on peoples anger and desperation caused by our Politicians decisions, decisions made based on Corporations corporate greed , to directing the fault for the problems on minorities entering the Country.
Yes we need Immigration reform, but as far back as Regan, every president has given amnesty to illegals, so it is not a Democrat or Republican issue, it is both have failed us by making no reforms. A president can not do it alone, it takes all 3 branches of Government and in this Country we are divided with a filibuster rule that makes sure no laws get passed.
China is on the rise, they will be the #1 super power before long. Maybe that threat is what it will take to get stupid Americans to stop fighting one another, a common enemy. Just my opinion.
In the mean time the truth is all Politicians both parties only objective is staying in power with their perks, Until this Country steps up, gets rid of Gerrymandering, Citizens United along with creating Campaign finance reform, creating term limits and making Lobbying illegal. This Country will go down like Rome.
I do not support either Party, both have been reduced to one another's lows.
Republican Politicians now are willing to sell out our Democracy to save their Political power even if it means supporting Authoritarian Rule over Democracy, they are saying a President in Office can do anything he wants prior to exiting office, and he will have no consequences. This should scare the hell out of everyone, because if this ever happens and the Military leaders go along with it, good bye USA. A self described Law an Order Authoritarian will now be solely dictating to all of us how we must live. He will make the laws like it or not.
So when your Enclave, Traverse, or Acadia breaks down, remember the root cause is the love of money and the people making decisions for the Corporations and against the rest of us in Politics. When greed rules our country, we all lose and our PCV valves end up sucking, just not the way they are suppose to.
Remember this is a place for comments and opinions. Not me telling you how to think. Knowledge is wisdom!
Very sad but true how our political systems works now. Very well written on both the political issues and the PCV issues,
thank you for taking the time
IT;S PCV !!!!!!!!!!!!!!!!!!!!!!!!!!