PCV valve Explained What is PCV Valve and How important is it?
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- čas přidán 26. 03. 2022
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#pcv #enginepcv #pcvvalve #pcvvalveexplained #engineblowby #misfire #vaccumleaks #randommisfire #oilleak - Auta a dopravní prostředky
Great explanation. There should be at least 2 PCV valves installed on all engines especially V6 and V8s. That way if one fails, the pressure can be relieved through the other. It seems that failure of PCV valve means failure of gaskets, misfires, oil burning, sludge, and probably accelerated failure of an engine. It’s interesting how there seems to be so little attention to this. Tons of videos talk about changing gasket and rarely any videos explain why it leaked in the first place.
Yup some car have 2
I own a 2006 Lexus GS. This car is in EXCELLENT condition. I've had the car for 12 years. It runs beautifully with 125k miles. I maintain it religiously. About one month ago I started to get a strong exhaust smell in the cabin. This occurred intermittently. 'Sometimes' on cold start up the car would reek with exhaust fumes. Sometimes not. The exhaust fumes occur randomly. They were quite strong and made breathing difficult. My wife would not want to ride in the car. I took it to the Lexus dealership and explained the issue, describing the symptoms and the odor. They kept the car for three days and couldn't solve the problem. I took it to two local mechanics also and neither could identify the issue. The last one kept the car for two days and said that upon start up he could smell something. He said he believed the problem was coming from the A/C unit. His solution Ozium in the intake vents.
A day after getting the car back I started the car, in the garage, and the exhaust fumes were again overwhelming. I decided to park the car and do some reading....
I found where one person said a symptom of a bad PCV valve might be exhaust fumes. I removed the PCV valve in my garage. It was the original factory OEM valve and completed carboned up. It was and stuck in the open position. I replaced it and the car ran perfectly with NO exhaust fumes. It seems slightly more responsive and runs like a brand new car. Cost $10....
People often don't consider the PCV valve when maintaining their vehicles. I was one of those, but now I know how important that little part is...
PCV valve is very important and it dosent come to ur mind when u have lean codes. Possability is there
It dosent come to mine when there’s random misfire
And so much more
@@RBTheMechanic My car did not throw a code. The last mechanic felt certain that if there was an issue a code would be generated. Not so. On top of that, the car purred like a kitten. I believe the mechs thought I was exaggerating... or something. It became quite an issue. I told my wife I would get rid of the car if I couldn't get this issue solved. Lots of reading gave me the clue....
@@curtgomes these cvt have recall TSB states it for cvt valve body
@@curtgomesI have a similar problem with my Focus, but the geniuses at Ford decided to put the valve under the intake manifold, so that has to be removed to access it. I could take this one on but think I’ll go to the mechanic lol
I have a 2017 ford fusion with a 1.5 L ecoboost and got a crankcase pressure code, makes my engine light come on then the light will stay off for a few days then it will come back on. Is it a bad sensor that needs to be replaced or is it actually something wrong with my engine?
Yes I had those come to me but customer refused the work but here’s a video some guy did u have similar issue I would replace that pipe and sensor czcams.com/video/u-2UDKpdonk/video.html
Can you make more videos like this explaining car mechanics like the brake system, electric etc
Sure will
I have a 07 accord 2.4 253k miles on it. Burned half a quart of oil in 50 miles. Replaced the valve and breather hose, the hose was almost completely pinched off. Bout it off a girl and don't know how long she drove it like that. Plz help!
Ok well check for leaks and since u did the valve and pipe now keep an eye on the oil if it’s any success also next oil try diffrent oil GTX castrol and then keep an eye on it worst come to worst most likely it’s the piston rings and valve seals which u can do much about
@@RBTheMechanic so is it cheaper to fix oil rings and valve skirts than it is to get a new engine?
@@simonsays582 well the parts are not so much just labor to change the rings and all is expencive but might be cheaper than dropping in new engine
@@RBTheMechanic yeah because the dealership didn't even bother asking if I wanted to just fix the piston rings or valve skirts they just jumped straight to replacing the engine.
@@simonsays582 they doing this under warrnty?
Explain both scenarios,
Stuck in open and stuck in close
The valve blocks up and the valve opens and then stays open
Yo whats up? I sold the Honda and bought a BMW X5. I already got codes. Two p300 one p305 p302 and p0430
Can a camshaft position sensor cause misfire?
I doubt it’s cam sensor it can do things but I would hook up scan tool and see the misfire data and then swap coils do tune up oil change and see where that take it also look for vaccum leaks since u got p0300
@@RBTheMechanic what about a pcv valve? I seen some milky oil going through the pcv pipe into the pcv valve and under the oil cap so I took off the valve cover and it was clean but found some moisture water on the cover. No milk in the antifreeze
@@servo5651 pcv valve could be vaccum leak but it whistles on BMW very loud
@@RBTheMechanic it is the pcv and air idle valve stuck on open on the X5. It was clogged up with this soap looking oil. It looks like the original parts.. I replaced one side VCG SPARK PLUGS NOW I REMOVED THE INTAKE MANIFOLD. I’m cleaning and replacing parts. I just cleaned the ACV it’s opening and closing now but before it. Was stuck
@@RBTheMechanic RB I need some help. I got this BMW X5 I just rebuilt the manifold and valve cover gasket and camshaft position sensors. No check engine anymore or misfire. I replaced the battery with a new one. My radio has no sound now and my heater isn’t blowing anymore. I don’t understand, fuses are good
I have high pressure on a civic i will check it imidiately
And you can ruin your cats.
Hell yeah