PCV Systems - How They Work
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- Опубликовано: 4 июл 2024
- In this video, we talk about a little bit of the history of the PCV System and what it's job is as an emission control system.
The PCV System is used to remove Blowby Gasses from the crankcase in order to prevent them from reacting with the oil to create sludge and prevent them from condensing in the oil and diluting it. The systems have to be sealed and flow into the intake because venting it to the atmosphere would be a huge hydrocarbon emissions issue.
Stay tuned for more Emissions Control system videos.
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Dude pulled my sons off and it was broken inside ,I put hundred in parts trying to fix my sons Chevy blazer and all it took was your video and this lil 4$ part and it’s fixed 😍 at least I gave his car a free tune up 🤣 thank you brotha your the man 👊🏽
What if they are stuck open I been chasing a maf code and I checked my valve and I can blow air threw both ways and there oil on the tube fans intake
@@arealmaintenanceandrepairl1103 same with me
@@arealmaintenanceandrepairl1103 they need to be getting vacuum through the tube that is connected to it
RUclips do it yourself saves soooo much money
I've got a 87 R-20 Chevy Surburban w/ a 350 throttle body I've notice one morning I, went to check the fluids like I always do before starting any engine I notice that the pvc valve was laying on top of the right top of the valve cover which came out of the pvc hole so I took the pvc valve off of the rubber hose and shook it and their was no rattle sound so I clean the pvc valve with mass air spray cleaner and put it back in to the hole on top of the right valve cover and rehooked it back up to the rubber hose after that I had not had any more problem with it blowing out any more
I never leave RUclips comments. I have never seen such a wonderfully simple explanation of how a PCV system functions. Awesome, sir!
I was gonna say the exact same thing, great explanation and illustrations.
@@donavanflowers4656 I never realized how important a PCV valve was. I always figured if you hear that valve rattle around... all was good.
I never read comments but your is the very first I've read 😃😃
@@hanc37 Nope! I just removed 2 PCV valves to clean for my relatives. They both rattled and they both allowed air to pass through both ways. What I'd like to see in this vid, is what will happen if you had a bad PCV valve.
He earns my credit for cutting the part in half for illustration.
I've been around cars for decades, and I'm quite familiar with how the basic systems work, but every once in a while, I like to watch an explanation video just to see how well somebody does presenting the info. This was superb, clear, concise, simple for anyone to follow👍
He did a great job for those that don't know, replacing your pcv valves are so important it might be a small part but it plays a very important role in your engine. Do not drill bigger holes in your valve
"These things weren't designed to be cut open."
That right there got me to click the subscribe button. Excellent video.
That explains the function of PCV valve better than I've seen from others. Thank you.
Thank you for this video. I have watched several videos, read articles, and asked different people and couldn’t understand how the PCV system works. This did it for me. Excellent job, thank you so much!
This might be the greatest explanation of crankcase ventilation I have ever seen! Not sure what your career decision is, but you should be in an automotive classroom. Thanks, brother
Thanks everyone for checking out the video. If you liked this video, we have more videos on Emissions Control Systems and many other videos you might enjoy about the Automotive Industry.
I just found your channel, and I noticed that you haven’t uploaded since last year. You explain things in a way that’s so easy to follow! I hope you’re doing well. Thank you so much for such awesome content 🙌🏻
Excellent video! 👌🏻 Clear delivery, nice illustration, no excessive rambling, normal human voice! 👏🏻👏🏻👏🏻
I’ve been researching PCV systems for awhile now with the intent of picking out a catch can system and haven’t really found great resources... This video is excellent! It very clearly explained how these systems work, thanks!
Probably the best explanation on how PVC systems work. Good job!
The most informative PCV video on the web. Thank you
Wow! Really well explained! Good drawing and showing the actual parts themselves along with using simple words to explain it all. Excellent video!!
I was paying too much on car repair , so I started to watch many of you guys teaching the work in mechanics, And Im very thank full to all of you , Because I've been doing a lot of work on my cars, And it became fun after the results" Thank you again.It is a blessing .
The best explanation of how it works on RUclips. Thank you.
Thank you for making a great video! I am an automotive instructor and we watched your video in my class and talked about it. It was very informative and I love the way you showed the cutaway of the PCV valve itself.
What a beautiful video is this. The more I know about how modern car works the more I become interested and wants to learn more. Not only how pcv works but also how you explain it are pleasing. Thank you buddy.
Great video Sir! I suspect many DIYers have no idea what the internals of the PCV valve are, but now they do if they watched the video. Thank you for the elucidation.
Fascinating. Over my head, but kept me riveted. I now have somewhat of an understanding of positive crankcase ventilation. Thanks 😊
Sir, Thank you in your explanation on how PCV works. Great detail information and very articulate. If we all had instructors as yourself, we would all be Master mechanics.
Once again, Thank you!
Best explanation of the PCR I have seen on RUclips.
This is the best explanation I have seen of the pcv valve. Thank you very much!!!
Excellent teacher, good verbal skills and logic. Good details efficiently delivered.
Excellent demonstration video. I now realise the importance of this valve. Recently noticed my idle slightly higher than normal & increased engine oil consumption. Checked pipes/hoses etc... for vaccum leaks, no leaks. I checked my pcv & its jammed open 100%. Now going to purchase a new pcv valve. Thankyou very much. 👌🏻👍🏻👏🏻👏🏻👏🏻 👋 🇦🇺
Amazing and the best explanation of PCV operation. Thank you a lot Kyle.
great video! Love that you cut it open! Very clear concise explanation
Very well done. Thank you for this detailed pcv value demonstration.
Clear, concise, and very effective explanation. Thanks!
Excellent knowledge here. .. As the plastic PVC housing on the plastic valve cover, the new valve would not seal properly on the engine vacuum side. I plumbed the pcv valve to the other valve cover, to the smaller hose fitting, then to the manifold inlet on the other end of the hose. .. The air box vent hose went to the larger broken side, with a minor repair. Everything worked great.. Thank you for this video.
Good work explaining the system. Makes sense now.
I really enjoyed the way you explain. And it is easy to process information, coming from a person that just started doing DIY stuff to enlarge vehicle lifespan. Great job!
Very clear easy to understand explanation must have watched 10 vids on this subject and this is the only one that was detailed and I was understood completely...
thanks...
Kyle,your videos are great. Like how you breakdown and simplify everything. Thanks for taking the time to explain things. 👍👍👍
Glade to listen when someone is not talking 90 miles an hour.
Great vid
TY for an excellent explanation of PCV system.
Sterling explanation Sir. very well done. Much appreciated!
The cutaway was awesome, thanks!
I have subscribed because is the type of mechanical explanations I am looking for...thank you
If this explanation does not help you understand the complexity of pcv system, I do not know what will.
Thank you sir for taking all the time and effort to simplify this system for us
Thank you. You did a great job of simply explaining the PCV system. I had a general understanding but this helped me a lot.
THANK YOU. I finally understand how the PCV valve works.
after seeing a lot of diagrams and videos, this video has explained all I need to know. Thank you very much!!!
first thing i'm going to check in the morning. thanks for all the great info. great job.
Thanks finally a video that really explains how the valve actually work at idle and full throttle!
After all these years I've learned something thanks 🙏
Great explanation man. Very easy to understand.
very clear! A key maintenance item very often overlooked that causes engine seal leaks when restricted (80kMi)
👍
Your telling me!!! I had an oil seal burst on my bikes engine today because I disconnected my PCV from my intake a while ago... how dumb of me to do 🤦♂️
Definitely in the top 2 videos I've seen about this.
Best explanation ever, thank you. Greetings from Germany
Thank you Sir for simplifying mechanics.
Excellent explanation of the PCV valve. I am building a custom engine and have seen many variations on how to control crankcase pressure. I'm installing an EFI system and was thinking of going with venting to a can, but now I think the best way is to run it into the base of the throttle body. I don't want to run it in such a way as to add oil sludge at the intake valves. Great job, thanks!
Best explanation of pcv ever 👏👏👏👏
Thank you for posting and in detail explaining this valve.
Very concise. thank you for your time!
Great video. I’ve been trying to make my car run better and this is one part I’ve overlooked for a long time because I thought the PCV valve didnt do much. I’m about to change the valve cover gasket which has been losing some oil lately, now that I know about the crankcase pressure thing I’ll do the PCV also.
Great explanation! Thank you!
Very simplified! Thank you !
This guy is very knowledgeable. Im subbing
Very informative video Kyle. Thanks!
Nice work. This is an awesome video. Thank you for putting this together!
awesome video explained PCV functionality very well ,thank you very much sir
This was explained so well! Thank you sir!!
I'm having oil leak into my air filter and I read it might be from a bad PVC valve. I literally never heard of that or had any idea what it was but now I understand. Still not sure if it's what is causing my problem but I think it a good place to start. Amazing explanation that even a non-mechanical person like myself can understand. Thank you!
You can also pick up a oil catch can as well. So if any oil still slips by it will go into there instead of your filter.
Did changing the PCV change fix your problem? I’m having the same issue.
Amazing explanations, thanks for making this video :)
Very good explanation! Thank you!
Great video. Great explanations
Nice Explanation! Thank you!
Great explanation!
Best explanation ever and great video. Thank you for putting this out there.
great video changed my life.
Brilliant explanation 🙌🤌🏽
Thanks a lot for a clear explanation. Now I learned at there is actually cleaned fresh air coming into the crankcase, and then there is a pcv valve which regulates the vacuum in the crankcase. I will rush to my Engine bay to see my own vacuum system.
wow, thank you! have an issue with the pcv system - now I totally grabbed it. super explanation, thank you so mutch, chears!
Best complete video about this valve 👍👍👍
A very detailed video of pcv valv thanks d.
Excellent man great work
awesome video, great info for studying ASEs
Great videos for auto repair knowledge!!! thanks
its a masterpiece tutorial video. Thank you.
This is an awesome video, cutaway really helped understand it!
Man so good. Thank you.
.. been battling a short term fuel trim issue.
Great video. Thanks for the explanation.
Fantastic, well done! Thank you.
Gold Value Explanation , love your CONTENT
Thanks for your very detailed info-clip!
Excellent training and explanation. I never thought that the pcv is actually 2 valves in one. Bottom part closes and top one meters.
Very informative and straight to the point sir! The illustration on the white board was perfectly executed as well! Oddly enough my engine does not use the traditional style pcv valve, it uses what seems to me like a flow restrictor and a smaller vaccum hose for this portion of the crankcase venting. The other portion which is a larger hose connects, How you described after the maf before the throttle plate. My engines valve cover only has one fitting that attaches to it and it’s basically a “T” adapter with two hose barns on the end. One for the larger fresh air hose and one smaller fitting that goes and connects under the intake manifold. I’ve been trying to install an oil catch can to minimize the amount of oil building up inside my intake manifold. I know my best option for maximum performance would be to vent all this to atmosphere which I have done in the past previously on the race track but if I’m daily driving the car it smells like crap and vapors are pretty strong since I do have a higher mileage performance engine that’s due for pistons and rings when I’m in a better financial state. When installing an oil catch can in line with my cars system it seems like I must install a can “in-line” with both the smaller and larger hoses ?
I would cause alot of damage if i deleted the smaller hose in my system that’s pulling the crank case fumes during idle eight ? I’m just trying to understand and be sure before I spend extra money. It sounds like I need to install two seperate catch can…..one for idle and vaccum state and the other for wide open throttle conditions 🤷🏼♂️
Excellent explanation!!
I'm sold sir!
Very well explained. 😃👍
You just forgot to mention 2 things/functions:
- At high revs but closed throttle it's necessary to restrict the flow for avoiding the PCV-valve beeing a bypass around the throttle. That's necessary for revving down.
- In case of a backfire into the intake system the pressure rises spontaneously, so the little piston in the PCV-valve is pressed backwards, shutting completely with the plate against the washer. This is for avoiding the backfire entering the crankcase and damaging the engine.
That's all.
I had never seen a cut open PCV-valve yet, just drawings, but not in real. 😉
@U.E. U.E. Can you explain how a backfire into the intake is caused? I’m repairing a 2021 Traverse (w/114 miles) that caught on fire from an intake backfire that melted down most of the plastic intake “duct” and burned the side of the engine that faces the radiator. Have the wiring harness and all melted parts replaced and am ready to start it up, but need to find what originally caused the backfire. Any ideas?
@billcowhig5739 In the case you worked on the engine the most likely is to mischange the ignition cables and having the spark during the intake stroke with open intake valve (I did it once in a boat, mischanged 1/4 and 2/3 - boom! 🤦♂️ The oil filler cap was shot vertically up, passed so close by my head that I felt the wind in my hair and shot a hole in the roof above me.).
Other reasons can be excessive amount of fuel in the hot intake or ignition/valves very far off.
Uta! con este hombre ni inglés necesito muy buena explicación gracias 🙏 que dios me lo bendiga mucho!
Damn.
Explained and shown.
The cut-open pcv helps.
🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
WOW! EXCELLENT VIDEO.
Great video. Thanks for posting.
Excellent! Thank you very much very professional very informative.
It’s funny but every time I get an oil change I notice I have to put in about a quart within a months time after that seems crazy I just thought it was just burning oil because it was older.
Now after doing some investigation and research and I know I can take action myself.
So far I added some oil and a Lucas additive and it’s great. Then I clean the air intake valve and it works even better and now I will clean or replace this PCV valve. It seems crazy that this is the first time I think I’ve really heard of this.
Awesome video man thanks alot
Great video sir, well explained and illustrated
This video is actually amazing! im subbing
Great work!