UIM question - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-03-2006, 07:34 PM   #31
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Is there suppose to be more than one O ring on the PCV valve?
Where would I go to buy the O ring if it'* missing?
I will look in side the old manifold to see if anything is there, I took a quick look this afternoon and I didn't notice anything, but I will take another look.
I seem to remember something about transfering an O ring, but I can't find where I read this!
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Old 10-03-2006, 07:56 PM   #32
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I did find the other thread that mentioned the smaller o ring.
How will I know if I have damaged the crankcase lip from this vaccum leak?
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Old 10-03-2006, 08:31 PM   #33
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I'm not an expert but I don't think you have to worry about it. It'* not like you've been running around like this for very long at all. I just wanted to quote a "gearhead" to be sure there were in fact 2 o-rings on the SII engine. I can't tell by your wording if you have a brand new PCV valve on there or not. Maybe a new one would come with all the necessary parts and if it'* the original PCV it might not hurt to get a new one anyway. I'm not sure where you could get a single ring though
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Old 10-03-2006, 09:43 PM   #34
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The pcv valve is new and it came with my UIM.
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Old 10-03-2006, 10:19 PM   #35
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I'll take a look at this when I get home, I'm sure this will solve my problem!
Thanks for all your help.
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Old 10-04-2006, 01:34 PM   #36
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That O ring took care of my problem.
My car runs a lot better with the new UIM and a tune up, I don't remember It running this good.
I don't miss that anti freeze air freshener.
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