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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 02-23-2006, 03:01 PM   #1
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Any way to tell how new a UIM is? I have had my car for about 2.5 years now. 186000 miles on it. It scares me knowing it might be an original UIM. Where would I look for this info on my intake manifold.
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Old 02-23-2006, 03:04 PM   #2
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The date is stamped right on top, in three different little date stamp codes. I think on the left (pass. side) is the day, then in the middle is the month, on the right is the most important one, the year.
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Old 02-23-2006, 03:49 PM   #3
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ok, will have to take another peek next time I go outside. for the info.
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Old 02-23-2006, 03:56 PM   #4
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The article you need is in Techinfo.
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Old 02-23-2006, 04:03 PM   #5
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ok, only thing I found was 2 date stamps on top of UIM. One is 1-12(month) and the other is 0-30. (day of month) Found a sticker that says Delphi 2 along with a bar code and a big # underneath it. First date stamp is between 2 and 3 and second is 25. Hope any of this info helps determining the DOM.
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Old 02-23-2006, 04:38 PM   #6
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Quote:
Originally Posted by Mike1995
ok, only thing I found was 2 date stamps on top of UIM. One is 1-12(month) and the other is 0-30. (day of month) Found a sticker that says Delphi 2 along with a bar code and a big # underneath it. First date stamp is between 2 and 3 and second is 25. Hope any of this info helps determining the DOM.
Trust me the year code is on there. It is the right most one near the very end (driver'* side) of the UIM. Mine was pretty faint, so look closely, should have a range like 00-06, or 94-99 or similar and a little arrow pointing to the year yours was manufactured.

So far we only know that yours was manufactured in Feb or March on the 25th...

EDIT: Here'* a pic


And here'* a link:
Must Read for Plastic UIM Owners
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Old 02-23-2006, 04:42 PM   #7
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Read this Article from Tech info....
http://www.bonnevilleclub.com/forum/...e=article&k=38

You will have a better understanding... It includes how to read the date of the Intake...

Good Luck.....

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Old 02-23-2006, 04:43 PM   #8
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I guess my edit was too slow, lol...
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Old 02-23-2006, 06:03 PM   #9
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ok, got it. its 2000. also noticed a little bit of oil puddling in the crevices too. Suppose I should redo this intake job?
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Old 02-23-2006, 06:25 PM   #10
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If you're going to, get a Dillon intake. Details are in that article.
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