PCV noise or valve cover leak? (video)
Hi guys,
First time post here! I had a hissing sound from the passenger side of the motor so I went ahead and replaced the PCV valve as a precaution. After replacing the valve, the hissing noise is still there. I'm wondering if this is simply the normal noise of the PCV valve or does is sound like I have a leak from my valve cover gasket/sparkplug tube gasket? https://photos.app.goo.gl/h1o4EJbtBsTSkJt19 |
Could it be an exhaust leak? Maybe look for a hole in the manifold...
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I had a noise like this for a long time, never got it to go away.
>replaced PCV >replaced PCV to intake hose >checked intake hoses for any leaks If it hasn't caused a CEL it won't be a huge issue for now. |
Originally Posted by houm_wa
(Post 678611)
Could it be an exhaust leak? Maybe look for a hole in the manifold...
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Mine has the same hissing noise, figured it was the PCV doing its thing.
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Originally Posted by djkronik57
(Post 679633)
Mine has the same hissing noise, figured it was the PCV doing its thing.
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Originally Posted by junya
(Post 679699)
That's good to hear, thanks!
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Sounds pretty normal to me. In fact I was working on a friends LR3 tonight and it has the same sound. At first I though it was a leak in the AC lines, we were charging it up. Just the PCV, they can be rather loud like that. I think its at times louder than other times because of the EGR being open or not - maybe, thats just a guess. The 4.4 really, really hates vacuum leaks. Open the oil fill cover or even the oil dip stick and the engine can faulter. So if it was a really intake leak it would be running horribly. But the engine sounds healthy.
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Originally Posted by Olivier Languedoc
(Post 734774)
I have that same sound. Trying to figure it out also. I ordered a new PCV before finding this post. Since last year anything changed with the noise?
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