Did you fix your car issues? Let us know in the comments below how you did it, and maybe you can help someone else with a bad PCV valve! Don't forget to like the video and subscribe to our channel! More PCV Valve information: mechanicbase.com/engine/pcv-valve-symptoms/ Website: mechanicbase.com/
I have a quick question, I replaced my PCV valve today and it worked perfectly and fixed my engine problems for about 10minutes but then suddenly my Bronco went straight back into the same sluggish mode that it was in before I replaced it. Why do you think it did this? Should I have replaced where the valve connected to the intake? (1986 Ford Bronco Eddie Bauer 302 EFI)
2006 saturn Ion 2.2 pvc valve location, any ideas? I'm a widow and not a mechanic but have had to learn to do things so any help is certainly appreciated!! Thank you
these symptoms sound right for some problems ive been having, on bmw 2008 x3 3.0L, i understand it has in the past had a recall on the pcv valve, im worried the replacement was done wrong as in the US many mechanics (even at bmw dealerships) tend to do things totally wrong on these cars. do you know offhand if my vehicle pcv valve is built into the valve cover or separate part i can check?
I had a crack in the PCV hose on my HK Barina that I missed for a couple months - causing an initially very subtle but increasingly rough/high idle that would eventually either stall or get stuck at around at 1.5k rpm and lose acceleration altogether until the engine was switched off and on after a 5s wait. This video was a great help.
Excellent explanation on the the purpose of the PCV! I guarantee that most mechanics wouldn't know this! Mechanics nowadays simply replace parts until the symptoms go away!
Great video, thank you, you saved me thousands of dollars of unneeded repairs that i was planning but it turned out that my pcv valve was stuck closed and this video was all the only info i needed to figure that out. Thank you
I bought a car that was blowing a light white mist through the oil dip stick when I tried to check the oil.(while the car is running/on) Also light oil mist pushing up through the oil cap/oil refill cap when I take it off.(again while the engine is running. I for sure though the piston ring seals/ head gasket was blown (but no white or cloudy oil in dip stick). I bought the vehicle anyways thinking I had to change the motor. It turned out to be just the pcv value was stuck and it was all I had to change for less than $25. Bought the vehicle for $1000. The vehicle is still going for $5-6k. Man I hot lucky.
My 2008 Honda crv 2.4l had issues with a lean bank 1 and ran rouph at a stop and fuel mileage was horrible. I found a collapsed PCV hose and changed the hose and PCC valve. The car long and short term fuel trims went back to normal withing 10 percent of each other and fuel mileage improved with smooth idling. If Pcv valve is closed it increases crank case pressures and could cause oil leaks out of the rear crank bearings, oil pan head covers and sludge up your engine. Small part big problems. Check it and make sure it's working properly. And please don't vent to atmosphere. It's better to have engine burn it clean then to pollute air even more. I also had to clean my throttle body because the dirty air clogged everything up. I had just bought this car used and must have been like this for a while. All good now. Thx
I think best to prevent the PCV Valve from getting clogged up . Is to have routine oil changes every 5-6000 miles with a new filter . And to use a detergent based engine flush such as AmsOil or Liqui-Moly each time .
I had anti-freeze constantly bubbling up and getting all over my cylinder covers in my Crosstrek. I've taken it to a mechanic, and they told me that the PCV valve was busted and had sucked oil into everything, and the oil had caused a lot of tubing to crack and break. Estimated cost of repairs would be ~$1000 (all while saying there's no guarantee it would fix the issue). They also told me this could have been caused by an oil pan leak (Subaru gonna Subaru), and they gave me the estimate of $6000 to fix that. I'm thinking on just having the PCV valve and tubing replaced because that seems to be the most likely candidate of what caused the issue (and on a vehicle w/ 127K miles on it, I don't think the PCV valve had ever been changed). And if the oil pan is leaking, it must be a small leak, because I don't see oil on the ground, so it can leak a little while longer for as much as I care.
Thankyou for taking the time out to make this video. I do my own maintenance's but for a novice that was very well explained and not complicated to understand bravo sir. 👏👏👏
Good video, thankyou. I have a 2005 LEXUS IS200 that my daughter drives. 190,000kms. When cold start in the morning I see a small amount of light grey or white smoke at the exhaust for maybe 7secs only. The engine has begin to use oil, we have added 1L in about 6weeks of daily commuting 50km round trip. I am thinking Valve seals but another suggestion was the PCV on the IS200. Your examples do not match my case however I am interested to get your opinion/guidance. We are in SEQLD, Australia with Summer temps in the 25-35deg C. Naturally I prefer the PCV to be the problem as replacing the valve seals is a harder job than on old cars. Cheers
And also the problem could be the pcv valve grommet ( it's bushing), bad grommet will cause vacuum.leak, so you need to change both regularly pcv an its grommet .
This video was very helpful. Thank you so much. My 2011 5.3v8 Silverado has 178k miles. It burns a little oil. I use it mostly for long long trips of 250-2k mile trips. I cruise at 80MPH sometimes in Mountains. I want to avoid a ring job or blowing various seals…. I don’t have any symptoms of a blown PCV except oil loss about a quart every 3K miles. Also oil is black at about 3K miles. I think I should replace the PCV as a preventative measure. What is your opinion? Thank you.
2011 shouldn't have a pcv valve because it uses a special breather that's in the drivers side valve cover that separates the oil from the blow by fumes and there is a upgraded valve cover for it that you can buy for it because there was a tsb on this from 08 models up that were having issues of to much blow by clogging up the throttle bodies on these engines . Also if your AFM auto fuel management system is still turned on that shuts cylinders down to conserve fuel and get better fuel mileage these engines had problems of those cylinders 7&8 I think it was where when they are shut down to much oil gets sprayed from the sprayer in the oil pan that sprays those cylinders and what happens is it's too much oil and after a while this oil turns into carbon that gets into the oil control ring lands on the pistons and what happens is the oil control rings get stuck in the ring lands instead of being pulled out to the cylinder walls by the cross hatch marks from the honing process when the engine is built at the factory and the honing process is what pulls the compression rings and oil control rings out of the ring lands into the cylinder walls so it builds compression. So once those oil control rings are stuck in those ring lands you get more blow by and oil consumption because the oil rings aren't doing their job of scraping excess oil off of the cylinder walls on its way back down . Try the valve cover and if I were you buy a Diablo sport tuner that lets you turn the AFM off or a Range disabler that turns the AFM off that plugs into the OBD port on your drives side just under the dash . I was have the same issue and did the upgraded valve cover and shut the AFM off and less oil consumption and the trucks instant fuel economy gauge in the dash says I'm getting only a 1.5 mile less fuel mileage with all 8 cylinders working . The other thing is if you leave the AFM on eventually you will have lifters that will fail because when the VLOM that's under the intake valley pan turn on and then cuts the cylinders back those lifters aren't being lubricated and they will fail and can do engine damage to a point that the engine is junk and either has to be rebuilt or a different good running or new crate engine installed . There was a lawsuit against GM on this but the judge tossed it out and probably was paid off from GM to do so under the table and a lot of people were having major issues with these engines . This covered the 2008-2012 models but now there is another lawsuit that is for the 2012-2021 trucks with the 5.3 engine that are having the exact same problem but if the people's lawyers win this they will be the ones that get most of the lawsuit money and the people who wrote their names down to add to the lawsuit they won't get enough money from the lawsuit to even fix their engines or have them replaced by GM . The only way GM did any repairs on these engines is it the truck was still under its 5 year 50,000 mile warranty or if the person who bought the truck had bought the extended warranty and GM would honor that but nothing past these . They make AFM delete kits that come with a new cam and roller lifters and lifter boxes plus the head gaskets and pushrods and needed plugs to plug the oil ports off from the VLOM so the engine runs with out the AFM runs on all 8 but after this is done you need to send the computer into have the AFM shut off internally or use the Diablo sport tuner or the Range disabler but once done these engines actually run much better than they did from the factory and make more power . GM also made a oil diverter that shuts that oil sprayer off and takes that oil and sprays it towards the oil pan sump where it should be and found out that spraying all that extra oil in the bottom of the engine specifically at cyl 7&8 that wasn't a good idea because it was causing the mentioned extra oil consumption and blow by because of the stuck oil rings .
@@peteloomis8456 wow thank you so much for this deep explanation. Well said and thank you for your time. I’d like to turn off the VLOM but the dealership warns against it. Also, I am a bit confused about the Diablo system. If I do that will I have to replace the rollers and plugs and all? Or are you saying that the actual modifications cause further problems and to just do themDiablo only?
PCV are generally cheap to replace. Use the factory part if available. They can also be cleaned with a couple shots of degreaser or brake cleaner after removing from engine.
I recently discovered the valve on the Toyota Camry with the 2AR engine is not exactly in a user-friendly spot. It can be done unless your power steering unit is in the way, which makes the job more complicated. SPOILER: You have to jack the car up and reach blindly up and feel around to find the valve's location; it's one of those deals.
Thank you for your very informative video bro👍👏 I have an Audi A6 2008. Vehicle: Audi A6 C6 4F 2.0L TFSI 2008 (4 cylinders) only one bank. Only P0171 no other codes. System too lean at a doe bank1 Freez frame DTC : P0171 Engine load : 20.8 % MAF : Air flow rate. 3 g/s RPM: 742 Fuel rai pressure: 688.92 psi Short term fuel % trim : 3.125 % Long term fuel % trim : 0. % Fuel / Air ratio : 14.63 % Any idea, appreciated. Cheers.
Thank you for posting this video. My truck has all six symptoms. I changed out the knock sensor. I did a full tuneup. I replaced the mass airflow sensor. I replaced oxygen sensors. Tomorrow I will be replacing the PCV valve and I guarantee the truck will be normal again.
I read somewhere on the box when i replaced mine that they last 60k miles on average. Or maybe that was their warranty? But not an expensive part for 60k imo
The best video I have seen re the PCV ,,well done and thanks. on my way to see my local auto electrician, I think the valve is in the rocker box so expensive.
This is just the video I was looking for! I have a 2007 Audi A6 C6 with a 3.0 TDI. For a while there has been an odd unburnt fuel smell at the back of the car when warm and idling (not when cold, no smell or smoke when cold) or when has been sitting in traffic, only a puff of smoke. Does not consume oil, no check engine light. Noticed where one pipe leaves rocker cover and feeds back in at turbo, both areas now have a light misting of oil (sweating not soaking everything) has felt OK for most part, pulls hard and smooth, returns good gas mileage, starts fine, idles fine, but about three times felt the slightest fraction of a second hesitation. Can I ask does this sound like a stuck open PCV valve from what you have said, or a failing one. Car is on 180,000 miles. No excessive oil puddle inside intake area where breather feeds back into intake. - I have a funny feeling the PCV valve will be burried in the V on these engines :) Any thoughts would be great as a starting point, great video thanks ! Ben.
Civic type R FN2 PCV about 40$ + aluminium washer 30 cents = dont skimp on the washer 😅 located close to the alternator and pretty easy to swap. Hose clamp is the hardest part to reach.
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thnx for ur info. keep up the good work. What would cause an engine to not feel smooth in the steering wheel, while when running? NOT a vibration, just a weird, not so smooth feeling in the steering wheel, as it use to feel. The vehicle running great, but is 15yrs old with 195thou miles.
My volvo has so much white smoke from exhaust and engine light and coolant in the oil. We believe it’s a Pcv is the issue. Is it possible that this bad pcv could cause the head gasket to also be damaged? There is so much white smoke the moment you turn it on and won’t stop . It’s only 2019
My car boggs a lot and I recently noticed a lot of oil leaks around the engine seal and even the engine oil filter started leaking oil I am not if this maybe the issue
@@MechanicBase i have blue smoke only at start up on my 2007 mustang gt with 50K original miles,,,i dont think the pcv valve has ever been changed..is the pcv valve the cause for the smoke or bad valve seals?..i changed my oil every 3-4K miles
If you do an engine swap and increase displacement from 5.0 liters to 7.0 liters, should the PCV valve be upgraded or enlarged for the bigger displacement engine?
in the diagram you show the PCV Valve installed in the head of the engine which is not correct, it is install in the Cylinder Block as its name indicates , Positive Crankcase Ventilation,
I have a 2017 Mitsubishi Lancer ES 2.0L with rough idle, sometimes will blow smoke upon stepping on the gas pedal, will stall at red lights, leaks oil from an unknown source, and has a check engine light. Fuel economy seems to be unaffected until the symptoms appear as they are intermittent. The car will go into limp mode as well. I have replaced: downstream o2 sensor, valve cover gasket, air filter, oil changes, etc. Does this sound like it could be a PCV valve and do you know where it would be on my car? Thank you for any help provided, and I loved how you included the mechanics behind the PCV valve as well!
Just buy a new one. They're super cheap. Also replace the connector hose and connecting pieces like the grommet etc.. Also clean out the breather box and seal any holes, and put a new O Ring on it.... I did that last fall and my car runs Great now....
Hi, I actually have some crank case breather hose , that constantly splits apart. It cracks, From the start and end of its pipes. I don’t know what could cause the problem. I’m replacing it every time.
I have a 1998 Honda Accord V6 with automatic transmission and 328,000 Km. For about 5 years there has been a thump or thud when starting it when cold. As it warms up the thump or thud gradually decreases to the point at normal operating temperature it’s quite mild. I have had the plugs replaced, the EGR valve cleaned, the valves adjusted, the MAF sensor replaced, the throttle body cleaned and oil and filter changes done regularly. Nothing has helped. I would be grateful if you could advise. Thank You!
My PCV and Rocker Cover were replaced in my 2023 Hyundai Tucson with 4K miles on it today. It has failed 4 pressure/consumption tests and is consuming 3qts of oil per 700 miles. Does this sound like a viable solution or should I demand a new engine since it's a lease?
Great way to test is pull the dipstick place a small piece of paper over it then start the engine, if it stays there the valve is good.if it gets blown off it's bad
@@neildean7515Yes carburetor cleaner will clean them out or soak it in a small can of gasoline and shake it around to clean it the blow it out with low pressure air . They can and do go bad because the spring inside gets weak and opens up to early or stays open . I've even seen where that valve at the bottom actually wears out from opening and closing so much from years of service and when it wears out it basically sucking blow by past the valve right into the intake and burned through the exhaust like what was shown on here . I've been working on old cars for 40 years and have seen all kinds of problems related to PVC valve issues . Old cars that were before emissions just used a valve cover breather that either pushed on or was turned or twisted on that had a filter of sorts inside but it had a hose barb that the hose attached to or a pipe that ran down the side of the engine and the blow by would be let out into the atmosphere and when the engines got worn out badly of course blow by is much worse and oil will actually start to drip out of the hose or pipe onto the road which if enough cars are doing this it causes damage to the tar roads and guys on motorcycles can go down because of the oil that causes loss of control and slipping tires especially in high traffic areas and cities .
OK so 2017 jeep renegade latitude overheated and lost all oil to register we pulled over in less that a qrt mile and shut it off and now it won't Stat it will turnover and you can hear it fire but will not start any way not even for a second any insight is welcome
Or you can cap off the intake side and remove the PCV and vent it to atmosphere with a small filter in place and not have to ever worry about it ever again.
Yes, that would work. But on the downside, you'll have the fumes from the engine coming into the cabin throught the ventilation. And, in some places, it's not road legal to have this setup.
For the simplest type of PCV valve it may cost you under $50 for one that costs $0.50 to make. If you are lucky to have a car designed by the superb German engineers, as the BMW in the example, it may cost hundreds of dollars for a part that costs $8 to make, but will also cost you a few hundreds dollars for a German car "specialist" to find it. It is worth point out typical German car specialist garage usually has a name with ends with Auto Werks.
Have a 96 grand marquis replaced valve cover gasket on passenger now it idle a lil ruff n act like it wants to stall wen I put shift to drive could this b a pcv value going or have gone bad
My sons 2006 Honda CR-V seems to have more smoke from tail pipe than others. I’ve replaced the pcv valve but nothing changed. It does have higher mileage at 181k and clearly it burns oil because we have to keep an eye on the level. I tested the cylinders and they are all 165psi and above. Still trying to understand why he’s burning oil or why there’s a bit of smoke until the car really warms up a lot. Weird. Most tell me it’s a Honda don’t worry but my other Honda doesn’t do that.
I have a 2004 CR-V and a 2006 Accord, each with about 165k. The Accord has never burned any oil in 9 years... the CR-V needs to be looked after ... adding 1/2 quart once or twice between oil changes.
sounds like blow-by, rings are possibly damaged. But you should get some MAF cleaner, clean MAF, then do Idle reset procedure. Even better, just get a new MAF sensor.
It is burning oil. That is the cause of the smoking tailpipe. Just keep checking oil level, top off when needed and the car will run for years like that. Just keep the oil level where it should be.
Hi guys, i have an audi rs3 2.5 tfsi czgb engine. When i startup the car it gives a light blue smoke and after only condens i think and when i rev the car the blue puffs come also.. not when idling. Just startup and revving the engine.
My 2015 Honda Accord Sport has NO symptoms other than burning oil. To stay at appropriate level, I have to add ~1 quart per every 1,000 miles driven. Could this be PCV valve?
Excellent video. thanks. Driving an audi 80 tdi with a 1Z engine, giving grey smoke and idles rough when engine is hot. No warning lights on such an old car. Could this be PCV valve issue?
Hi l took my car to the mechanic to get a valve gasket replace and after 3 weeks of driving it completely shut off and on further inspection I noticed that the pcv tube assembly was broke but it seen like it was patch with a heat- shrink tube. So now they told me It seen that I got a head gasket leak and that what cause the issue on the first place. The car it's 2014 with only 75000 miles so it's neither to old or with high mileage.
Never cheap out on your pcv valve, always aim to get oem part, even the slightest hair of a difference in cheap aftermarket part will cause a whole world of problems, the fit needs to be exact, precise.
The PCV valve in my 2014 Honda Accord(2.4 4 cyl.) is just a plastic piece with no "one way" valve in it. You can blow straight through it from either way. How does this thing do its job?
It wouldn’t run very well at all if there is no valve mechanism. I’d assume that someone has previously blocked off the hose where it connects at the inlet manifold. They have either run a secondary hose elsewhere to relieve crank case pressure or the hose is venting into the atmosphere somewhere. Do you tend to have oil leaks going on? When crank case pressure build and isn’t running out of a PCV valve that can open then it’s the engine seals being put under pressure creating leaks.
I have a Elantra 2018 GT (Base). Is it easy access to change the PCV valve? I get a rough sound when starting the car and saw some oil over the engine gasket beside the spark plug area.
Try cleaning throttle body and pcv valve with throttle body cleaner. Look for cracked plastic intake parts while you are cleaning those. Take back the MAF if possible and replace the OEM part. MAF codes are notoriously unreliable.
My diesel car gets white smoke on exhaust on idle when engine warms up , no smoke while engine is cold , also no smoke when driving , does that sound like pcv
Is the motor 1KZ TE diesel parado 1998 equipped with a PCV VALVE ?? If yes , what is its location.?? Motor expert already changed new turbo for excessive white blue smoke+ engine oil from tailpipe. No effect Living in rural area Pakistan Any guidance from any one plz. ??
Did you fix your car issues? Let us know in the comments below how you did it, and maybe you can help someone else with a bad PCV valve!
Don't forget to like the video and subscribe to our channel!
More PCV Valve information: mechanicbase.com/engine/pcv-valve-symptoms/
Website: mechanicbase.com/
Hi my breather is blowing out air
How can I find the PCV valve in my 2015 Mercedes Benz GLA 250 4 matic
I have a quick question, I replaced my PCV valve today and it worked perfectly and fixed my engine problems for about 10minutes but then suddenly my Bronco went straight back into the same sluggish mode that it was in before I replaced it. Why do you think it did this? Should I have replaced where the valve connected to the intake? (1986 Ford Bronco Eddie Bauer 302 EFI)
2006 saturn Ion 2.2 pvc valve location, any ideas? I'm a widow and not a mechanic but have had to learn to do things so any help is certainly appreciated!! Thank you
these symptoms sound right for some problems ive been having, on bmw 2008 x3 3.0L, i understand it has in the past had a recall on the pcv valve, im worried the replacement was done wrong as in the US many mechanics (even at bmw dealerships) tend to do things totally wrong on these cars. do you know offhand if my vehicle pcv valve is built into the valve cover or separate part i can check?
I had a crack in the PCV hose on my HK Barina that I missed for a couple months - causing an initially very subtle but increasingly rough/high idle that would eventually either stall or get stuck at around at 1.5k rpm and lose acceleration altogether until the engine was switched off and on after a 5s wait. This video was a great help.
Excellent explanation on the the purpose of the PCV! I guarantee that most mechanics wouldn't know this! Mechanics nowadays simply replace parts until the symptoms go away!
PCV Valve on my Honda cost less than 5 bucks, took me less than 5 minutes to replace. I cleaned it with carburetor cleaner offen as I can.
Great video, thank you, you saved me thousands of dollars of unneeded repairs that i was planning but it turned out that my pcv valve was stuck closed and this video was all the only info i needed to figure that out. Thank you
I bought a car that was blowing a light white mist through the oil dip stick when I tried to check the oil.(while the car is running/on)
Also light oil mist pushing up through the oil cap/oil refill cap when I take it off.(again while the engine is running.
I for sure though the piston ring seals/ head gasket was blown (but no white or cloudy oil in dip stick).
I bought the vehicle anyways thinking I had to change the motor.
It turned out to be just the pcv value was stuck and it was all I had to change for less than $25.
Bought the vehicle for $1000.
The vehicle is still going for $5-6k.
Man I hot lucky.
I hope this helps some one out there.
Should the pcv be closed at idle not venting. ?
My 2008 Honda crv 2.4l had issues with a lean bank 1 and ran rouph at a stop and fuel mileage was horrible. I found a collapsed PCV hose and changed the hose and PCC valve. The car long and short term fuel trims went back to normal withing 10 percent of each other and fuel mileage improved with smooth idling. If Pcv valve is closed it increases crank case pressures and could cause oil leaks out of the rear crank bearings, oil pan head covers and sludge up your engine. Small part big problems. Check it and make sure it's working properly. And please don't vent to atmosphere. It's better to have engine burn it clean then to pollute air even more. I also had to clean my throttle body because the dirty air clogged everything up. I had just bought this car used and must have been like this for a while. All good now. Thx
I think best to prevent the PCV Valve from getting clogged up . Is to have routine oil changes every 5-6000 miles with a new filter . And to use a detergent based engine flush such as AmsOil or Liqui-Moly each time .
Yes, doing regular oil changes does help a lot, @peterrudy9207👍👍
liqui moly all day
engine flush, intake cleaner, ceratec every oil change
3500 miles
First, you have a great voice!!! Secondly, thank you so much for posting this video!!
I had anti-freeze constantly bubbling up and getting all over my cylinder covers in my Crosstrek. I've taken it to a mechanic, and they told me that the PCV valve was busted and had sucked oil into everything, and the oil had caused a lot of tubing to crack and break. Estimated cost of repairs would be ~$1000 (all while saying there's no guarantee it would fix the issue). They also told me this could have been caused by an oil pan leak (Subaru gonna Subaru), and they gave me the estimate of $6000 to fix that.
I'm thinking on just having the PCV valve and tubing replaced because that seems to be the most likely candidate of what caused the issue (and on a vehicle w/ 127K miles on it, I don't think the PCV valve had ever been changed). And if the oil pan is leaking, it must be a small leak, because I don't see oil on the ground, so it can leak a little while longer for as much as I care.
I love the hand tutorial given with both the left and right hand! 👌🤚🖐️
Well informative video. I know too much about PCV but your video added even more information to me.
Thankyou for taking the time out to make this video. I do my own maintenance's but for a novice that was very well explained and not complicated to understand bravo sir. 👏👏👏
Good video, thankyou. I have a 2005 LEXUS IS200 that my daughter drives. 190,000kms. When cold start in the morning I see a small amount of light grey or white smoke at the exhaust for maybe 7secs only. The engine has begin to use oil, we have added 1L in about 6weeks of daily commuting 50km round trip. I am thinking Valve seals but another suggestion was the PCV on the IS200. Your examples do not match my case however I am interested to get your opinion/guidance. We are in SEQLD, Australia with Summer temps in the 25-35deg C.
Naturally I prefer the PCV to be the problem as replacing the valve seals is a harder job than on old cars. Cheers
Great video - very helpful to a complete novice!
And also the problem could be the pcv valve grommet ( it's bushing), bad grommet will cause vacuum.leak, so you need to change both regularly pcv an its grommet .
This video was very helpful. Thank you so much. My 2011 5.3v8 Silverado has 178k miles. It burns a little oil. I use it mostly for long long trips of 250-2k mile trips. I cruise at 80MPH sometimes in Mountains. I want to avoid a ring job or blowing various seals….
I don’t have any symptoms of a blown PCV except oil loss about a quart every 3K miles. Also oil is black at about 3K miles.
I think I should replace the PCV as a preventative measure. What is your opinion?
Thank you.
I would definitely replace it. This is a cheap part, and the job is not overly difficult👌
2011 shouldn't have a pcv valve because it uses a special breather that's in the drivers side valve cover that separates the oil from the blow by fumes and there is a upgraded valve cover for it that you can buy for it because there was a tsb on this from 08 models up that were having issues of to much blow by clogging up the throttle bodies on these engines . Also if your AFM auto fuel management system is still turned on that shuts cylinders down to conserve fuel and get better fuel mileage these engines had problems of those cylinders 7&8 I think it was where when they are shut down to much oil gets sprayed from the sprayer in the oil pan that sprays those cylinders and what happens is it's too much oil and after a while this oil turns into carbon that gets into the oil control ring lands on the pistons and what happens is the oil control rings get stuck in the ring lands instead of being pulled out to the cylinder walls by the cross hatch marks from the honing process when the engine is built at the factory and the honing process is what pulls the compression rings and oil control rings out of the ring lands into the cylinder walls so it builds compression. So once those oil control rings are stuck in those ring lands you get more blow by and oil consumption because the oil rings aren't doing their job of scraping excess oil off of the cylinder walls on its way back down . Try the valve cover and if I were you buy a Diablo sport tuner that lets you turn the AFM off or a Range disabler that turns the AFM off that plugs into the OBD port on your drives side just under the dash . I was have the same issue and did the upgraded valve cover and shut the AFM off and less oil consumption and the trucks instant fuel economy gauge in the dash says I'm getting only a 1.5 mile less fuel mileage with all 8 cylinders working . The other thing is if you leave the AFM on eventually you will have lifters that will fail because when the VLOM that's under the intake valley pan turn on and then cuts the cylinders back those lifters aren't being lubricated and they will fail and can do engine damage to a point that the engine is junk and either has to be rebuilt or a different good running or new crate engine installed . There was a lawsuit against GM on this but the judge tossed it out and probably was paid off from GM to do so under the table and a lot of people were having major issues with these engines . This covered the 2008-2012 models but now there is another lawsuit that is for the 2012-2021 trucks with the 5.3 engine that are having the exact same problem but if the people's lawyers win this they will be the ones that get most of the lawsuit money and the people who wrote their names down to add to the lawsuit they won't get enough money from the lawsuit to even fix their engines or have them replaced by GM . The only way GM did any repairs on these engines is it the truck was still under its 5 year 50,000 mile warranty or if the person who bought the truck had bought the extended warranty and GM would honor that but nothing past these . They make AFM delete kits that come with a new cam and roller lifters and lifter boxes plus the head gaskets and pushrods and needed plugs to plug the oil ports off from the VLOM so the engine runs with out the AFM runs on all 8 but after this is done you need to send the computer into have the AFM shut off internally or use the Diablo sport tuner or the Range disabler but once done these engines actually run much better than they did from the factory and make more power . GM also made a oil diverter that shuts that oil sprayer off and takes that oil and sprays it towards the oil pan sump where it should be and found out that spraying all that extra oil in the bottom of the engine specifically at cyl 7&8 that wasn't a good idea because it was causing the mentioned extra oil consumption and blow by because of the stuck oil rings .
@@peteloomis8456 wow thank you so much for this deep explanation. Well said and thank you for your time. I’d like to turn off the VLOM but the dealership warns against it. Also, I am a bit confused about the Diablo system. If I do that will I have to replace the rollers and plugs and all? Or are you saying that the actual modifications cause further problems and to just do themDiablo only?
Ty for taking the time out to make this video to educate us❤❤
Just buy PCV valve, only 8 dollars fix ir not fix the issue atleast you can cross out that part
My intake has to come off ! Just quoted $699.
Depends on the car mate, some are cheap some are expensive to fix
40 bucks for aftermarket and 70 for oem in my case. ( 2020 ram 1500)
PCV are generally cheap to replace. Use the factory part if available. They can also be cleaned with a couple shots of degreaser or brake cleaner after removing from engine.
I recently discovered the valve on the Toyota Camry with the 2AR engine is not exactly in a user-friendly spot. It can be done unless your power steering unit is in the way, which makes the job more complicated.
SPOILER: You have to jack the car up and reach blindly up and feel around to find the valve's location; it's one of those deals.
Thank you for your very informative video bro👍👏
I have an Audi A6 2008.
Vehicle: Audi A6 C6 4F 2.0L TFSI 2008
(4 cylinders) only one bank.
Only P0171 no other codes.
System too lean at a doe bank1
Freez frame DTC : P0171
Engine load : 20.8 %
MAF : Air flow rate. 3 g/s
RPM: 742
Fuel rai pressure: 688.92 psi
Short term fuel % trim : 3.125 %
Long term fuel % trim : 0. %
Fuel / Air ratio : 14.63 %
Any idea, appreciated.
Cheers.
How do symptoms differ if the valve is stuck closed or open?
Many Thanks For The Excellent Class ! 👍🏽👍🏽👍🏽
Thank you for posting this video. My truck has all six symptoms. I changed out the knock sensor. I did a full tuneup. I replaced the mass airflow sensor. I replaced oxygen sensors. Tomorrow I will be replacing the PCV valve and I guarantee the truck will be normal again.
Did this work for you
Well how's truck running bra
How did it go? Did the pcv fix it??
How’d it go?
Mine involves removing the valve cover to remove the CCV breather bung. Instead of doing that I added a cheap catchcan. Problem solv-ed.
I read somewhere on the box when i replaced mine that they last 60k miles on average. Or maybe that was their warranty? But not an expensive part for 60k imo
The best video I have seen re the PCV ,,well done and thanks. on my way to see my local auto electrician, I think the valve is in the rocker box so expensive.
Great video, These tips and tricks are very helpful to car owners. Thank you very much.
Thank you👍
This is just the video I was looking for! I have a 2007 Audi A6 C6 with a 3.0 TDI. For a while there has been an odd unburnt fuel smell at the back of the car when warm and idling (not when cold, no smell or smoke when cold) or when has been sitting in traffic, only a puff of smoke. Does not consume oil, no check engine light. Noticed where one pipe leaves rocker cover and feeds back in at turbo, both areas now have a light misting of oil (sweating not soaking everything) has felt OK for most part, pulls hard and smooth, returns good gas mileage, starts fine, idles fine, but about three times felt the slightest fraction of a second hesitation. Can I ask does this sound like a stuck open PCV valve from what you have said, or a failing one. Car is on 180,000 miles. No excessive oil puddle inside intake area where breather feeds back into intake. - I have a funny feeling the PCV valve will be burried in the V on these engines :) Any thoughts would be great as a starting point, great video thanks ! Ben.
Civic type R FN2 PCV about 40$ + aluminium washer 30 cents = dont skimp on the washer 😅 located close to the alternator and pretty easy to swap. Hose clamp is the hardest part to reach.
thnx for ur info. keep up the good work. What would cause an engine to not feel smooth in the steering wheel, while when running? NOT a vibration, just a weird, not so smooth feeling in the steering wheel, as it use to feel. The vehicle running great, but is 15yrs old with 195thou miles.
Power steering fluid? Loose belts? Front tire issue?
EXCELLENT tutorial, Thank you, please post more wonderful Videos, 🙂
Great overview and diagram! Thanks for the thorough explanation!
Thanks bro 😊
My volvo has so much white smoke from exhaust and engine light and coolant in the oil. We believe it’s a Pcv is the issue. Is it possible that this bad pcv could cause the head gasket to also be damaged? There is so much white smoke the moment you turn it on and won’t stop . It’s only 2019
My car boggs a lot and I recently noticed a lot of oil leaks around the engine seal and even the engine oil filter started leaking oil I am not if this maybe the issue
some cars are rediculas to find and replace these. they are well hidden is what im saying. important to change out or clean if good.
Hallo verry helpful video .i loking for Mercedes Vito 114 2016 w447
Thank you. Straight to the point video.
Thank you🙏
Very helpful.Thank you!
Would a bad pcv valve cause oil to get into your exhaust system through your air intake and turbo?
Yes, it can. Because of excessive pressure inside the crankcase. Do you have white-blue smoke coming from the tailpipe?
@@MechanicBase i have blue smoke only at start up on my 2007 mustang gt with 50K original miles,,,i dont think the pcv valve has ever been changed..is the pcv valve the cause for the smoke or bad valve seals?..i changed my oil every 3-4K miles
It probably IS the pcv valve. Change it. It is cheap and easy to do.@@robertswift6101
Greetings from Australia!
Brilliant presentation 🎉
Is it possible to clean the PCV valve in an Ultrasonic Bath?
Verygood
If you do an engine swap and increase displacement from 5.0 liters to 7.0 liters, should the PCV valve be upgraded or enlarged for the bigger displacement engine?
Hi. Great explanation. Can you help me find the PCV valve on my 2003 or 4 Lincoln Town car?
Thanks to the video and WoW auction house bell nostalgia 😂
Great!!!!! Video Thanks for sharing
Thank you for great explanation. Excellent Presentation.
Glad to help🫡
great video. clear information and instructions
in the diagram you show the PCV Valve installed in the head of the engine which is not correct, it is install in the Cylinder Block as its name indicates , Positive Crankcase Ventilation,
I have a 2017 Mitsubishi Lancer ES 2.0L with rough idle, sometimes will blow smoke upon stepping on the gas pedal, will stall at red lights, leaks oil from an unknown source, and has a check engine light. Fuel economy seems to be unaffected until the symptoms appear as they are intermittent. The car will go into limp mode as well. I have replaced: downstream o2 sensor, valve cover gasket, air filter, oil changes, etc. Does this sound like it could be a PCV valve and do you know where it would be on my car? Thank you for any help provided, and I loved how you included the mechanics behind the PCV valve as well!
Do you have an OBD2 scan tool, to check what codes you have? But that might be caused by a stuck-open PCV valve.
Be aware there is a small bb in one of those vacuum hoses on top of the motor. Dont just rip those out and replace. Find the bb in the hose.
Just buy a new one. They're super cheap. Also replace the connector hose and connecting pieces like the grommet etc..
Also clean out the breather box and seal any holes, and put a new O Ring on it.... I did that last fall and my car runs Great now....
Hi, I actually have some crank case breather hose , that constantly splits apart. It cracks, From the start and end of its pipes. I don’t know what could cause the problem. I’m replacing it every time.
I have a 1998 Honda Accord V6 with automatic transmission and 328,000 Km. For about 5 years there has been a thump or thud when starting it when cold. As it warms up the thump or thud gradually decreases to the point at normal operating temperature it’s quite mild. I have had the plugs replaced, the EGR valve cleaned, the valves adjusted, the MAF sensor replaced, the throttle body cleaned and oil and filter changes done regularly. Nothing has helped. I would be grateful if you could advise. Thank You!
I think that the pcv is blocked on my Fabia vrs because when the engine is running, air is blowing from the air filter housing.
My PCV and Rocker Cover were replaced in my 2023 Hyundai Tucson with 4K miles on it today. It has failed 4 pressure/consumption tests and is consuming 3qts of oil per 700 miles. Does this sound like a viable solution or should I demand a new engine since it's a lease?
That's way too much. Talk to your dealer, and if that doesn't help, contact the manufacturer directly.
Great way to test is pull the dipstick place a small piece of paper over it then start the engine, if it stays there the valve is good.if it gets blown off it's bad
My jeep srt consume a lot of oil with no smoke. I only smell gas when starting the car. Do you think a bad pcv valve could cause the oil consumption?
PCV valves don't go "bad".
They gunk up with oil from other mechanical issues, but they nearly never "go bad".
Does this mean you can clean a PCV valve rather than replace them!!!!
@@neildean7515 usually. A few squirts of some kind of cleaner is cheap to try at least.
@@neildean7515Yes carburetor cleaner will clean them out or soak it in a small can of gasoline and shake it around to clean it the blow it out with low pressure air . They can and do go bad because the spring inside gets weak and opens up to early or stays open . I've even seen where that valve at the bottom actually wears out from opening and closing so much from years of service and when it wears out it basically sucking blow by past the valve right into the intake and burned through the exhaust like what was shown on here . I've been working on old cars for 40 years and have seen all kinds of problems related to PVC valve issues . Old cars that were before emissions just used a valve cover breather that either pushed on or was turned or twisted on that had a filter of sorts inside but it had a hose barb that the hose attached to or a pipe that ran down the side of the engine and the blow by would be let out into the atmosphere and when the engines got worn out badly of course blow by is much worse and oil will actually start to drip out of the hose or pipe onto the road which if enough cars are doing this it causes damage to the tar roads and guys on motorcycles can go down because of the oil that causes loss of control and slipping tires especially in high traffic areas and cities .
Well explained
OK so 2017 jeep renegade latitude overheated and lost all oil to register we pulled over in less that a qrt mile and shut it off and now it won't Stat it will turnover and you can hear it fire but will not start any way not even for a second any insight is welcome
Or you can cap off the intake side and remove the PCV and vent it to atmosphere with a small filter in place and not have to ever worry about it ever again.
Yes, that would work. But on the downside, you'll have the fumes from the engine coming into the cabin throught the ventilation. And, in some places, it's not road legal to have this setup.
You dirty the oil much faster without the air flow.
or add a catch can in line
That may work in Bangladesh where you live
@@45orangedonnietherussianmo96 no need to be racist
For the simplest type of PCV valve it may cost you under $50 for one that costs $0.50 to make. If you are lucky to have a car designed by the superb German engineers, as the BMW in the example, it may cost hundreds of dollars for a part that costs $8 to make, but will also cost you a few hundreds dollars for a German car "specialist" to find it.
It is worth point out typical German car specialist garage usually has a name with ends with Auto Werks.
Have a 96 grand marquis replaced valve cover gasket on passenger now it idle a lil ruff n act like it wants to stall wen I put shift to drive could this b a pcv value going or have gone bad
My sons 2006 Honda CR-V seems to have more smoke from tail pipe than others. I’ve replaced the pcv valve but nothing changed. It does have higher mileage at 181k and clearly it burns oil because we have to keep an eye on the level. I tested the cylinders and they are all 165psi and above. Still trying to understand why he’s burning oil or why there’s a bit of smoke until the car really warms up a lot. Weird. Most tell me it’s a Honda don’t worry but my other Honda doesn’t do that.
I have a 2004 CR-V and a 2006 Accord, each with about 165k. The Accord has never burned any oil in 9 years... the CR-V needs to be looked after ... adding 1/2 quart once or twice between oil changes.
sounds like blow-by, rings are possibly damaged. But you should get some MAF cleaner, clean MAF, then do Idle reset procedure. Even better, just get a new MAF sensor.
It is burning oil. That is the cause of the smoking tailpipe. Just keep checking oil level, top off when needed and the car will run for years like that. Just keep the oil level where it should be.
Thanks for the information, but I don't know how to locate mine. I have a Nissan Primera 2000 model
Thank you for your information.Can a bad pvc valve cause your car to run a little hotter
Sorry pcv valve
@Mechanicbase Great explanation, video and diagrams, thank you.
I’m hearing noises from that area. When I hold down the hose, it stops, but if I let go….it makes noises again. Help please.
Good video
Perfect!
Hi guys, i have an audi rs3 2.5 tfsi czgb engine. When i startup the car it gives a light blue smoke and after only condens i think and when i rev the car the blue puffs come also.. not when idling. Just startup and revving the engine.
I am having trouble finding mine. I have a 2004 Saturn Ion 2.2 Eco.
My 2015 Honda Accord Sport has NO symptoms other than burning oil. To stay at appropriate level, I have to add ~1 quart per every 1,000 miles driven. Could this be PCV valve?
No, run heavier oil.
@@rshettle123 so maybe 5w20 or 30?
I reduced my similar issue by changing the pcv. Oil consumption cut way down.
Yes just change it. Cheap 10$
@@rshettle123exactly what my mechanic told me today
So what is the advantage of fitting a catch can as this isnt a controlled circulation
Excellent video. thanks. Driving an audi 80 tdi with a 1Z engine, giving grey smoke and idles rough when engine is hot. No warning lights on such an old car. Could this be PCV valve issue?
Vacuum leak
Where is the PCV Breather location on a 2013 GMC Terrain Denali, is it connected on the back of the intake manifold?
Yes, it should be.
Can a presure build up cause the plug wires to pop off?
That's not likely.
Hi l took my car to the mechanic to get a valve gasket replace and after 3 weeks of driving it completely shut off and on further inspection I noticed that the pcv tube assembly was broke but it seen like it was patch with a heat- shrink tube. So now they told me It seen that I got a head gasket leak and that what cause the issue on the first place. The car it's 2014 with only 75000 miles so it's neither to old or with high mileage.
I have a 1995 Chevrolet Camaro (6 Cylinders S 3.4l MFI OHV 207 CID) and I need finding both ends
Can you tell me where the pcv valve is located on a 2017 ford fusion titanium 2.0 ecoboost?
Hello
Can you please tell me how to find my pcv valve on a 2013 Ford focus 1.6 l engine?
Where is the PCV valve on a 2020 Acura TLX 2.4 Base model?
Never cheap out on your pcv valve, always aim to get oem part, even the slightest hair of a difference in cheap aftermarket part will cause a whole world of problems, the fit needs to be exact, precise.
The PCV valve in my 2014 Honda Accord(2.4 4 cyl.) is just a plastic piece with no "one way" valve in it. You can blow straight through it from either way. How does this thing do its job?
It wouldn’t run very well at all if there is no valve mechanism. I’d assume that someone has previously blocked off the hose where it connects at the inlet manifold. They have either run a secondary hose elsewhere to relieve crank case pressure or the hose is venting into the atmosphere somewhere.
Do you tend to have oil leaks going on?
When crank case pressure build and isn’t running out of a PCV valve that can open then it’s the engine seals being put under pressure creating leaks.
wherte is pcv located valve located for 2015 Mercedes CLA45 AMG ? Right side of intake manifold or near tyhe catch pan toward the axle?
I have a Elantra 2018 GT (Base). Is it easy access to change the PCV valve? I get a rough sound when starting the car and saw some oil over the engine gasket beside the spark plug area.
Can a mass air flow sensor code mean I may need to replace the PCV valve? I replaced the mass air flow sensor but I’m still getting the same code.
Try cleaning throttle body and pcv valve with throttle body cleaner. Look for cracked plastic intake parts while you are cleaning those. Take back the MAF if possible and replace the OEM part. MAF codes are notoriously unreliable.
Can a pCV valve cause my car to misfire?one of my plug refused to fire.
Where is the pc valve of a 2003 mercedes benz c240 located?
could you tell where the PCV in 2006 Hyundai Elantra? thanks!
Can you help me locate the PCV valve for Toyota Vitz
I replace my PCV valve and my valve cover three times and it's still wanting to surge what does
Pls where is a pcv valve located in my rx330 Lexus jeep?
Should pcv valve be closed ie not venting at idle ?
You written that it can skip gears because of that. I guess it's about automatic transmission. Is that true?
Yes, engine issues often cause issues with automatic transmission.
2005cadi escalate starting problems
My diesel car gets white smoke on exhaust on idle when engine warms up , no smoke while engine is cold , also no smoke when driving , does that sound like pcv
Have the same problem. Going to the mechanic tomorrow
Could be o2 sensor or open fuel injector
Sounds like Purge valve canister
Is the motor 1KZ TE diesel parado 1998 equipped with a PCV VALVE ??
If yes , what is its location.??
Motor expert already changed new turbo for excessive white blue smoke+ engine oil from tailpipe. No effect
Living in rural area Pakistan
Any guidance from any one plz. ??