Plenum Gaskets Question
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Joined: Jun 2007
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Plenum Gaskets Question
After replacing my intake manifold and plenum/runner gaskets, I started getting the SES light and giving me the code 32. So it looks like I might end up changing out he EGR valve; still gotta do the test though. But im wondering since I just changed out the gaskets about a month ago and it looks like I need to remove the plenum and loosen the runners to get at the EGR, could I reuse the plenum/runner gaskets or do I need another complete set?
Drifting
Joined: May 2002
Posts: 1,509
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From: Hazel Park MI
I've re-used mine before - and I'm re-using them again this time after taking the intake off. I have aftermarket LTR's, and the gaskets are cut way too big where they meet the manifold. So, I have to permatex them a little. From what I have seen on my car, the lower runner gaskets don't take the on-off stuff as well as the top plenum ones do....you know dudes are gonna tell ya to get new ones, and it's a valid argument, but since ya just changed them......
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
...could I reuse the plenum/runner gaskets or do I need another complete set?
Safety Car
Joined: Oct 2007
Posts: 3,816
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From: :45 minutes from everywhere / E-I-E-I-O
I wouldn't buy an EGR yet - I think you might have not gotten a good seal at re-assembly.
When you re-assemble, use a thin film of grease. It will help assure a good seal.
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Where would I apply the film of grease? Both the plenum/runner gaskets or the runner/manifold gaskets?
Melting Slicks
Joined: Apr 2003
Posts: 3,110
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From: Red Sox Nation! RI
Before you go nuts, check your EGR temp sensor. See if the porcelean is broken where the wire goes into the switch. And check that wire coming from the switch isn't disconnected or broken behind the distributor.
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Safety Car
Joined: Oct 2007
Posts: 3,816
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From: :45 minutes from everywhere / E-I-E-I-O
I had no vacuum leaks afterward.
96gs007 just suggested in this new gasket swap thread, that they go on dry. I don't see how it can hurt tho'.
http://forums.corvetteforum.com/show....php?t=2033363
My EGR on the back of the intake had some kind of jam between the EGR gasket and the manifold, that looked like silver metallic anti-seize. I will probably go with copper metallic when I re-install...
After you do this kind of work, you just don't want it suckin' any air..
