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C5 PCV valve

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Old Oct 2, 2017 | 10:06 PM
  #1  
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Default C5 PCV valve

Hey guys, I know there has been multiple different threads about the pcv valve and the hoses. I can’t seem to find what I’m looking for. I have a 99 and the hose going from the passenger side front of the intake manifold to the pcv valve has a hole. I am trying to find the hose so I can replace it. Has anyone replaced it, and if so with what? I’ve attached a few photos.

Thank you!

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Old Oct 2, 2017 | 11:20 PM
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I use regular fuel lines for my setup. Seems to be working just fine.
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Old Oct 3, 2017 | 06:43 AM
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Mine was brittle. It is sold as a complete unit that wraps around the back of the engine for around $100 (GM PN 12590632). http://www.ebay.com/itm/OEM-NEW-PCV-...5VOWO-&vxp=mtr
I wish I would have gone with a LS6 valley cover/PCV system for about the same price. AFAIK The 99 block would need some minor grinding to get a LS6 one to fit though.

You could try calling Vettenuts.net to see if they have one. They always seem to be the answer for rare items.

Last edited by Rob 02; Oct 3, 2017 at 06:48 AM.
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Old Oct 3, 2017 | 07:38 AM
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You might also want to check the Y that is behind the intake. It is probably in the same shape. The Y can be replaced with a push lock type fitting.

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Old Jun 23, 2019 | 02:59 PM
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Yes, the fuel line mod also worked for me!!

Last edited by stockC5; Jun 23, 2019 at 02:59 PM.
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Old Jun 23, 2019 | 09:13 PM
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Good suggestions, and I would first call one of the forum used parts vendors to see if they happen to have one you could get.
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Old Jun 23, 2019 | 10:11 PM
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With entire new assemblies readily available for $125 just go that route and be done.
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