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Old 11-22-2010, 04:20 PM   #1
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recently the ol girl started sippin at the coolant, i pulled off the upper plenum and theres oil in the intake. is that normal?
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Old 11-22-2010, 04:31 PM   #2
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Its a known issue. You need to replace the upper intake plenum with a redesigned version. The redesigned kit includes a redesigned stovepipe design that prevents contact of the hot metal to the plastic.
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Old 11-22-2010, 04:36 PM   #3
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What year and engine type do you have?

A typical problem as stated is the EGR stove pipe cracking the plastic due to the heat. The coolant passages go right past the EGR stove pipe and start to leak in to the intake. Your options are, a new UIM, or block off the coolant passages that go in to the UIM. Not much need for them, it just runs a little coolant up to the throttle body.
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Old 11-22-2010, 04:37 PM   #4
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i already got the new one im in the process of changin it right now. should i clean the oil up? i was expectin coolant but it wasnt using that much. i just wanted to catch it before it got bad.
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Old 11-22-2010, 04:38 PM   #5
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2001 3.8 series II
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Old 11-22-2010, 05:23 PM   #6
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Quote:
Originally Posted by rkreed01 View Post
i already got the new one im in the process of changin it right now. should i clean the oil up? i was expectin coolant but it wasnt using that much. i just wanted to catch it before it got bad.
Where are you asking about the oil? If you're asking about coolant, it won't be a big deal if it sucks in a little and burns it off in the first couple of seconds.

Make sure you don't forget to change that stovepipe so it doesn't happen again.

By the way, welcome to GMForum. Feel free to introduce yourself in the new members' introduction section.
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Old 11-22-2010, 08:48 PM   #7
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Quote:
Originally Posted by xtremerevolution View Post
Where are you asking about the oil? If you're asking about coolant, it won't be a big deal if it sucks in a little and burns it off in the first couple of seconds.
Change the oil and filter as soon as you can. Better safe than sorry. While a few sips of coolant probably won't cause any damage, why take the risk? Clean oil is happy oil.

And welcome to the forum! Stick around, and we'll keep 2011 away from your 2001 the best we can.
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