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.

ICM and coil interchangeability

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Old 05-16-2007, 12:00 PM
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OK I'm gonna go into town and pick up a Chilton'* or Hayne'* manual, that should get me started on figuring out how to do the job.

Is this gasket set any good?

Intake Manifold Gasket Set

Or should I just find a Felpro one?

Thanks for all the help guys. I'm also gonna go to the JY and find an ICM if I can get one for cheap anyways, but I'm going to repair this as well. Is there any other way than coolant loss to determine if that is the source of the loss of coolant? Though from the description of the problem, after 12 years and 150k the gaskets should be replaced anyways.
Old 05-16-2007, 12:08 PM
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get the aluminum framed ones from the dealer

Originally Posted by lash
As far as anyone here knows, Felpro does not make an aluminum framed LIM gasket set, so save some time and retiurn those and go to you GM dealer and get the aluminum-framed ones with a part number the same or similar (there is some variation in the part number, but not by more than a couple digits) as the one referenced in the TECHINFO article.

GM just started offering these aluminum-framed replacement gaskets the summer of 2005 and to date, there has been no other place to get them. If you use anything less than the GM aluminum-framed gaskets, you will be assured of having to replace them again in a few years.


GM Aluminum Frame Lower Intake Manifold Gasket set: GM PN# 89017816

As mentioned already, some have found their local GM dealer to carry these with a slightly different P/N, but this will get you where you need to be.
Old 05-16-2007, 12:12 PM
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ugh dealers. I'm trying to think if we've even got a GM dealer around here!

How much is that set gonna run me at the stealership?
Old 05-16-2007, 12:14 PM
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i got mine for $44
Old 05-16-2007, 12:16 PM
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www.intense-racing.com has them as well.
Old 05-16-2007, 12:20 PM
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Originally Posted by willwren
www.intense-racing.com has them as well.
http://www.intense-racing.com/Mercha...tegory_Code=GH
Old 05-16-2007, 12:37 PM
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ok, assuming the cost isn't prohibitive I'm going to still look into getting a good ICM as well. But I'm gonna pick up these gaskets too.
Old 05-16-2007, 12:48 PM
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You also need the APN UIM kit and a Dorman HELP replacement coolant elbow.
Old 05-16-2007, 03:17 PM
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Originally Posted by willwren
You also need the APN UIM kit and a Dorman HELP replacement coolant elbow.
any part numbers for those?

Should I get them from the dealer as well. Stupid library didn't have a manual for the 3800 >< Is there a how-to with pictures or anything floating around, or should I buy a manual off ebay?
Old 05-16-2007, 03:39 PM
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you need to completely read this entire write up.. its very important.. all of the part numbers and information is contained in the article

http://www.bonnevilleclub.com/forum/...e=article&k=38


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