Unknown Leak - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-23-2006, 01:19 PM   #1
Sol
Senior Member
True Car Nut
Thread Starter
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default Unknown Leak

I know it'* a GP, but I'm posting here because it is a L67 issue.

I have been keeping an eye on this for a while now. There is a very slow leak somewhere around the supercharger, on top of the intake manifold. It is pooling up slowly in a small area near where the snout connects to the */C casing.

The fluid is brown, which leads me to believe that it is either motor oil or */C oil. However, I do not see how motor oil can leak there. My valve cover gaskets were replaced about 15K miles ago, and I do not see any signs of leaking from them.

Here are some photos I took:







I'm stumped on this one. I'm going to take this in to my dad'* shop, but I wanted to see if anyone on here has seen this issue before.
Sol is offline   Reply With Quote
Old 07-23-2006, 01:22 PM   #2
Senior Member
Certified Car Nut
 
dbeast420's Avatar
 
Join Date: Aug 2004
Location: My reclining computer chair
Posts: 11,269
Thanks: 0
Thanked 0 Times in 0 Posts
dbeast420 is on a distinguished road
Default

You able to get a little on your fingertip to tell if is slick like oil or not??

Could be a leak around the */C gasket itself
dbeast420 is offline   Reply With Quote
Old 07-23-2006, 02:01 PM   #3
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

A zoomed out pic might help... so we can see more of what is around it.
J Wikoff is offline   Reply With Quote
Old 07-23-2006, 02:16 PM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

I suspect it'* wicking out along the LIM bolt right there from the head. Motor oil.
willwren is offline   Reply With Quote
Old 07-23-2006, 02:21 PM   #5
Sol
Senior Member
True Car Nut
Thread Starter
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default



Here'* where it is happening.

I didn't know motor oil can make its way up that far. I notice that one bolt is oily looking. That'* very strange.
Sol is offline   Reply With Quote
Old 07-23-2006, 02:50 PM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Ever had a LIM off? There'* almost always oil in those holes. How'* your PCV?
willwren is offline   Reply With Quote
Old 07-23-2006, 03:07 PM   #7
Sol
Senior Member
True Car Nut
Thread Starter
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

Never had it off. Never checked the PCV either.

The motor has 107K, so I guess this stuff is inevitable.
Sol is offline   Reply With Quote
Old 07-23-2006, 03:28 PM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Idea:

Change the PCV valve. It could be making it worse if it doesn't vent crankcase pressure effectively.

Remove that bolt, and clean up the area very well. Clean the bolt even better. Apply some RTV gasket-grade (black or red) to the threads of the bolt and put it back in.
willwren is offline   Reply With Quote
Old 07-23-2006, 04:34 PM   #9
Sol
Senior Member
True Car Nut
Thread Starter
 
Join Date: Sep 2002
Posts: 8,909
Thanks: 0
Thanked 0 Times in 0 Posts
Sol is on a distinguished road
Default

I'll look in to that. I'll definitly have my dad help me with that.

Thanks.
Sol is offline   Reply With Quote
Old 07-23-2006, 04:51 PM   #10
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Yucky. I might have just helped fix a GTP.

:P

Hope that does it for ya, Sol. It really does look to me like it'* coming from around that bolt.
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Unknown Electrical Problem CTS OR A/C ? HELP cmoseby Everything Electrical & Electronic 1 07-24-2004 12:55 AM
unknown oil seepage GAMEOVER 1992-1999 4 02-11-2004 03:36 PM
unknown cause of battery drain zzzzzeke Everything Electrical & Electronic 18 01-18-2004 01:20 PM
Unknown insect Flipper Lounge 45 09-14-2003 04:11 AM
unknown problem bwiensko 1992-1999 16 02-12-2003 03:39 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:46 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.