LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

could and would a bad PCV cause..

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Old Oct 28, 2007 | 12:00 PM
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67camaro02's Avatar
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could and would a bad PCV cause..

oil consumption?

I have the tell-tale dip-stick popping up issue combined with oil consumption. Just curious if it could be the PCV valve before I assume the worse (rings and/or pistons)
Old Oct 28, 2007 | 12:26 PM
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it could be, but mostlikely not. they are cheap replace it and see what happens
Old Oct 28, 2007 | 12:33 PM
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I believe they rattle if you shake them if they are good. I would just replace anyway. My U shapped hose was cracked real bad and it was only $10-$15 for both from the dealer.
Old Oct 28, 2007 | 01:54 PM
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Dipstick popping up yes, oil consumption i really doubt very much. Sounds like its time for a compression and leakdown test.
Old Oct 28, 2007 | 03:06 PM
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yeah, that's what I figured. Just thought I might get lucky
Old Nov 2, 2007 | 05:52 AM
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actually we had a bad pcv valve on a mazda 6 i know its not an lt1 but still...it cause a lot of headaches and we finally traced it down to a 5 dollar pcv valve imo you should change it
Old Nov 2, 2007 | 05:59 AM
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SS RRR's Avatar
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Originally Posted by 67camaro02
oil consumption?

I have the tell-tale dip-stick popping up issue combined with oil consumption. Just curious if it could be the PCV valve before I assume the worse (rings and/or pistons)
If you do assume the worst then make sure to get a leak down performed. Blowby can be generated from the top and/or bottom end. I don't believe there would be enough pressure from normal blowby to overwhealm the breather tube. I think it's time for a leak down test.
Old Nov 2, 2007 | 07:12 AM
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If it still runs OK put an extra valve cover breather on it while ya save for new rings.
Or just leave the stick out.
Old Nov 2, 2007 | 10:44 AM
  #9  
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Originally Posted by 67camaro02
yeah, that's what I figured. Just thought I might get lucky
How often does that ever happen, lol? I was having my car blow the oil caps out las t winter if I got on it hard. Guess what, I popped the ring lands off the #7 piston.
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