PCV Valve - 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 01-27-2005, 06:00 PM   #1
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Default PCV Valve

If someone would be so kind, could you pull oput your PCV Valve and snap a pic? I was checking mine out, and I didn't find the O Ring on it that I remember using when I replaced the original on my own.

The current one was installed by the dealership that replaced my upper intake, and I have a gut feeling they got in a hurry and did it wrong.

So, if someone could pop thiers out of a Series II, snap a quick pic of it, and either post it or send it by e-mail, I would be highly appreciative. All I have are the exploded views from my FSM'*...
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Old 01-27-2005, 06:46 PM   #2
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can someone do this on a Series I supercharged as well?
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Old 01-27-2005, 07:57 PM   #3
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I can't get you at picture at the moment, but I can tell you that the dealership probably forgot the part. I had my PCV reassembled without a spring when I had a mechanic replace my UIM. I think it'* easy for people to gloss over things like that when it'* not their own car. Just my two cents.
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Old 01-27-2005, 08:07 PM   #4
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Well, at least I don't feel quite as paranoid....
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Old 01-27-2005, 08:35 PM   #5
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What happens when the spring is left out?
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Old 01-28-2005, 01:46 PM   #6
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BUMP - so this don't get lost.

It'* a simple request - I just wanna see what it'* supposed to look like so I can make sure it'* right or wrong right now...

Puh-Leeeeeease??
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Old 01-28-2005, 02:22 PM   #7
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Here'* what I found on my '95 SLE:

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Nice red O-ring on top

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Nothing underneath, no lower o-ring and no spring on top like on my '92 SSEi
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Old 01-28-2005, 02:35 PM   #8
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Thanks Bill!! That'* good and bad news for me. Good, because it doesn't look like I need a new PCV Valve (although a Icoulda swore there was an O ring involved)

Bad, because it means I probably really need a new MAP Sensor and/or EGR Valve. I was hoping that if the PCV Valve were installed wrong, it was what was causing the MAP Sendor to throw a code, thereby causing the EGR to throw a code, as they are all inter-related....



damn cars......
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Old 01-28-2005, 03:52 PM   #9
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Thanks, Don. I didn't know if it was supposed to have a lower o-ring or not. Good to know. And a PCV O-ring won't be the only thing missing on this car. It'* gonna take a lot of patience to make this one right.
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Old 01-28-2005, 04:00 PM   #10
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[quote="MOS95B"]
Bad, because it means I probably really need a new MAP Sensor and/or EGR Valve. I was hoping that if the PCV Valve were installed wrong, it was what was causing the MAP Sendor to throw a code, thereby causing the EGR to throw a code, as they are all inter-related....[quote]

Well, I don't know. Mine was obviously missing that lower o-ring and it ran swell, set no codes, no apparent problems.......until yesterday, when the rear crank seal developed a leak and started pukin' oil out onto the flex plate. :( And to think, I just had the trans out and could have changed that rear seal for a few bucks and an hour of labor. Don't it just figure?
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