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1999 Chevy Lumina Freeze plug?

Tiny
NIGROCHAL
  • MEMBER
  • 1999 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 106,000 MILES
I originally took off upper air intake and lower intake assuming it was an air intake leak, as they are common. But it appears there is a plug that is leaking, it is steel. I cannot find any documentation in any of my repair manuals to find out what this is?

I have uploaded in a picture and circled the problem. The s shape is top of block where lower air intake meets it.

Can anyone help.


http://www.2carpros.com/forum/automotive_pictures/286538_dsfgsdfs_1.jpg

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Sunday, December 14th, 2008 AT 6:42 PM

5 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Its oil pump drive shaft
it leak oil only
usually has an o ring and some have O ring and a gasket
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Sunday, December 14th, 2008 AT 6:54 PM
Tiny
NIGROCHAL
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  • 3 POSTS
It is/was leaking coolant?
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Sunday, December 14th, 2008 AT 6:56 PM
Tiny
BMRFIXIT
  • MECHANIC
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No coolant in or around it
coolant came from the intake gasket
very common for the intake gasket to separate from the plastic around the water jacket causing coolant leak
they have an updated gasket for the subject
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Sunday, December 14th, 2008 AT 7:49 PM
Tiny
NIGROCHAL
  • MEMBER
  • 3 POSTS
The oil pump is on the complete opposite side of the engine, and what ever this is, it is in fact leaking coolant.
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Sunday, December 14th, 2008 AT 7:54 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Then need a better picture
is it at the rear of engine by the tranny?
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Sunday, December 14th, 2008 AT 8:45 PM

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