Did upper intake now burns oil. Help - 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 12-03-2012, 06:01 PM   #1
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Default Did upper intake now burns oil. Help

So just did my upper intake dorman # 615-180 because of the egr melting it now I burn oil i am stumped I torqued everything only issue I had is i had to re-use the old top to the pcv housing and there is a dorman not that some other part may be message cv892kit does anyone know where I should go from here could it have anything to do with the pcv valve system do I need the cv892kit
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Old 12-03-2012, 06:08 PM   #2
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Is your PCV valve installed nipple up and flat side down?
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Old 12-03-2012, 06:16 PM   #3
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The nipple is up so the flat side is down kinda pushed into the manifold
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Old 12-03-2012, 06:23 PM   #4
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How about that little hose thingy. Sometimes they don't always stay in place when you install the UIM.
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Old 12-03-2012, 07:14 PM   #5
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Quote:
Originally Posted by Mike1995 View Post
How about that little hose thingy. Sometimes they don't always stay in place when you install the UIM.
I can see it when I take that pcv cap off on the side of it does that rule out the hose or does it connect somewhere else inside the UIM also I assume the stock pcv cap should work the one that came with it looks different and has a hole in the top so it just Sucks tons of air in and it'* very noticeable you can hear it
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Old 12-03-2012, 07:41 PM   #6
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Did the big O-ring get installed too?
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Old 12-03-2012, 09:43 PM   #7
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Did the big O-ring get installed too?
This was my question too. Been there, forgot that
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Old 12-03-2012, 09:52 PM   #8
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You did put the MAP sensor back on right?
If you did you may want to inspect the o ring that goes on it.

The pick-up tube does not connect to anything inside the UIM, so you do not need to worry about that, the only issue I had when I did mine was that it was hard to get the new PCV cap on, this was due to that pickup tube being to far up into the new UIM, I tapped it down a little and was able to get the new PCV cap/map sensor on without a struggle.


Just curious, but did you remove the LIM and replace the nylon 6,6, LIM gaskets that are known to fail?
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Old 12-03-2012, 11:58 PM   #9
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Quote:
Originally Posted by WilliamE View Post
You did put the MAP sensor back on right?
If you did you may want to inspect the o ring that goes on it.

The pick-up tube does not connect to anything inside the UIM, so you do not need to worry about that, the only issue I had when I did mine was that it was hard to get the new PCV cap on, this was due to that pickup tube being to far up into the new UIM, I tapped it down a little and was able to get the new PCV cap/map sensor on without a struggle.


Just curious, but did you remove the LIM and replace the nylon 6,6, LIM gaskets that are known to fail?
The big o-ring came in the kit so it'* new and i didn't replace the LIM gasket like an idiot didn't think I had to it wasn't burning anything before and all of a sudden it was gulping antifreeze so I pulled the throttle body and saw all the antifreeze and figured I could get away with just the UIM replacement guess i will have to tear it down agin is there a oil passage in the LIM
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Old 12-04-2012, 07:46 AM   #10
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im glad i did, i saw the upper leak as well but got lowers to be sure and it was worse. make sure you use thread seal on the lowers, and it wouldnt hurt to plug the coolant ports

https://www.gmforum.com/mechanical-1...2005-a-304071/

https://www.gmforum.com/mechanical-1...ts-l36-297702/
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