Yes the intake failing can cause oil to go into the cylinders. Happened to me, i just did it Let me guess it was running fine then OOPS start missing and smoking? Riiiight, upper intake galore. Save yourself the money and spend a few days doing that. I got all the parts for about $325. That'* with all new platinum plugs.

This is a friends car! That is what he said happened! So i will pull the intake.

Thank you Skydog

So most likey to both upper and lower intake?

Yes, pull both UIM and LIM and replace the UIM and gaskets. There are a few really good threads and a TECHINFO article that'll help. Let me go find it for you...

OK, Back...Read this:
'95-'03 Upper Intake Failure Info

Use the new style LIM gaskets from GM if you can get them. They are superior. Good luck and ask any additional questions here. There is a TON of expertise on this issue here.

THANK YOU!!!!!!!!!!

Well guys i pulled the upper intake and found it is all full off oil under it!! What is the cause? Hear are some pic.!

THANK YOU !!!!!!!!

How do i post a pic??

[img]url-of-image[/img]

First you have to host it on a full time server. Places like photobucket.com and cardomain.com will do and are free. Here'* directions from FAQ:

Can I Post Images?

Can i e-mail them to some one to post?
What you guys think about the oil?? Bad Lower Intake?

Thank you Skydog snowbank_99@yahoo.com