160K Miles on Original Intake Manifold ('98 Series II N/A)

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Aug 27, 2006 | 06:39 PM

marquette97

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160K Miles on Original Intake Manifold ('98 Series II N/A)

I took the plastic engine cover off today to find I have what looks to be a Plastic Intake Manifold! With 160,000 mi, this can't be the original can it? How can I tell? I don't want to have to worry about it failing!

Aug 27, 2006 | 06:54 PM

banned3800

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https://www.gmforum.com/forum/kb.php?mode=article&k=38

Read that... It will explain how to read the date

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Aug 27, 2006 | 07:24 PM

marquette97

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mine has no date anywhere, must not be the original then?

Aug 27, 2006 | 07:28 PM

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I doub't its the original... It must have been replaced somewhere along the line... Its rare that we see one last 160k... Even the Dorman I replaced mine with had a date stamp on it...

Glad that its been replaced, but I do wonder how long ago that was..

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Aug 27, 2006 | 07:36 PM

marquette97

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well i'm glad to know its not the original either! How reliable would you say the replacements are?

Aug 27, 2006 | 07:59 PM

banned3800

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Quote:

Originally Posted by marquette97

well i'm glad to know its not the original either! How reliable would you say the replacements are?

We don't know for sure... I would think we would be seeing them fail as well by now... I wouldn't keep one more than 5 years or so...

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Aug 28, 2006 | 09:34 AM

lash

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Quote:

Originally Posted by jr's3800

http://www.bonnevilleclub.com/forum/kb.php?mode=article&k=38

Read that... It will explain how to read the date

Did you read this whole article yet? It has a lot of very good info in it.

It would be unusual for your intake to not have any dates on it at all.

Aug 28, 2006 | 07:36 PM

marquette97

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From: Michigan

I noticed a small amount of coolant oozing out one of the corners, and a nice gap between my throttle body and UIM, sort of makes a high pitched whistle/suckign noise above 2800rpms