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PCV problem?

This is a discussion on PCV problem? within the General Help forums, part of the LSx Technical Help Section category; So I was cleaning out my air filter yesterday and I noticed this (see pics) that was not there before ...

  1. #1
    Yeah baby! Yeah! silverWS6's Avatar
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    PCV problem?

    So I was cleaning out my air filter yesterday and I noticed this (see pics) that was not there before and I think it just started since I haven't cleaned my engine bay in a few weeks now. I'm thinking it can be fixed with a catch can and be gone but I don't have the $100 for a catch can right now. I was thinking maybe PCV valve or something? Any ideas? Or if you guys have found some lower priced catch cans that would also be great



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    Junior Member Z28dryva's Avatar
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    Just spend the money on a valley plate PCV off a GTO and never mess with it again. The dealer replacement PCV pipe and Y is like $110 and you can get those valley plates for $100 on ebay so it's a win win situation. You can make a new one like I did but it's still not a good as a valley plate style

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    Junior Member Z28dryva's Avatar
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    Spaz is My Mentor SMWS6TA's Avatar
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    LS6 VCT is $58 from gmpartsdirect.

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    Spaz is My Mentor SMWS6TA's Avatar
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    You are lucky in that you have a 02'. You will not need to notch the block like us 98-00'. All it is is a intake & knock sensor removal, replace and reinstall.

    Read this:


    Explaination of OEM PCV vs LS6 VCT Mod


    Then read this:

    LS6 valley cover in pics

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    Junior Member Z28dryva's Avatar
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    If that thing is that cheap, why do these ass hats on Ebay want $50-$200 for used ones?
    Last edited by Z28dryva; 09-10-2012 at 07:36 PM.

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    Senior Member tatertot91's Avatar
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    There are lots of things being sold on ebay that are rediculous but people buy. People sell t56 manuals on ebay when they are free from the manufacturer online.

    Edgar, i'm with the rest. An ls6 valley would be an easy swap for you and even though it's better than the ls1 setup i still recommend a catch can.

  8. #8
    Spaz is My Mentor SMWS6TA's Avatar
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    I'm running both catch can and LS6 VCT. My oil consumption has dropped so much. I've had it on now for almost 2 yrs and 2 weeks ago I pulled the TB off for some maintenance. I looked into the intake and it looks like a minimal amount of oil has made past the catch can.







    I've looked at the LS2 VCT and it will not work for a LS1. Yes it will fit but it doesn't have the knock sensor holes in the tray. It has the same PCV set up as a LS6 VCT.

    On the LS2 the knock sensors are moved to the side of the block were as the LS1/6/LQ4's (basiclly all GEN III's) are on the top within the valley cover tray.
    Last edited by SMWS6TA; 09-11-2012 at 08:25 AM.

  9. #9
    Yeah baby! Yeah! silverWS6's Avatar
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    Looks like I will have to get a LS6 VCT for now and a catchcan later when more funds come along and paint my intake while its off


    Wished I would've noticed this before the 4 day weekend I just had so I could've gotten it done! As long as I keep the revs low for now, it'll be fine right? It'll be at least 2 weeks before I get free time to do this.

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    Senior Member tatertot91's Avatar
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    You should be alright. Be sure to post pics once you paint that intake too

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    Junior Member Z28dryva's Avatar
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    I just fabbed up a catch can with my standard LS1 PCV system to see how much ends up in it before I go with the valley plate set up. I like the idea of putting the knock sensors out on the sides of the block instead of in the valley plate especially as high maintenance as they can be. I think I'll be converting to block mount knock sensors on my 5.3 truck because I can't keep them working in their current configuration.

    - - - Updated - - -

    I just fabbed up a catch can with my standard LS1 PCV system to see how much ends up in it before I go with the valley plate set up. I like the idea of putting the knock sensors out on the sides of the block instead of in the valley plate especially as high maintenance as they can be. I think I'll be converting to block mount knock sensors on my 5.3 truck because I can't keep them working in their current configuration.

  12. #12
    Spaz is My Mentor SMWS6TA's Avatar
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    Ryan is right to in that you can run the catch can with the POS PCV. If you do I suggest running the PCV in between the catch can and the intake.


    Only negative with this setup is that you'll still have the problems of cracking rubber tubing behind the intake from the heat cycles.

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