coolant leak around intake manifold? - Page 2 - 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.

Closed Thread
 
 
 
Thread Tools Search this Thread
Old 10-30-2004, 10:33 AM   #11
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

a little update.

I haven't dug into the engine yet, Everyday I check the oil and I took a sharpie marker and drew a little line on the coolant tank to monitor coolant level.

I have not seen anymore leakage and the car has been driven about 4 miles a day.

The water around the t/b gasket seems to be drying up a bit except there is still a very small puddle on the exhaust manifold, but it seems to be coolant goo that coagulated there.

I plan to go to the car wash today with a can of degreaser and really clean up the top of the engine.

My hope is somehow the guys at the shop got coolant all over the engine somehow during the radiator flush and didn't completely clean it all off.

I check everything before she drives it and after and will continue to monitor this.

Very odd...
commo is offline  
Old 10-30-2004, 12:17 PM   #12
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

awesome, thanks!
commo is offline  
Old 10-30-2004, 10:56 PM   #13
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

Well, not good but not disaster yet either.

GF drove car around today, lost about an inch of coolant in tank.
Got wrenches out and went to work. Got t/b off and gasket looks fine. I also don't see any plastic degradation in the plenum either...

Bad news is the coolant appears to be coming from the gasket between plenum and intake manifold. Look at these pics and let me know what you think. In the last pic, the bottom right corner of the manifold is where i think the leak is the worst, as this is where the coolant was pooling up on the exhaust manifold.

What do you guys think????



commo is offline  
Old 10-31-2004, 08:44 AM   #14
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

btw, the oil doesn't seem contaminated yet, but i will change it anyway when i am done.
commo is offline  
Old 10-31-2004, 09:50 AM   #15
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

that is what i looked like, the car has 55k miles.

also should i do lowers????

i really dont want to as really need to have it running tomorrow morning..
commo is offline  
Old 10-31-2004, 10:01 AM   #16
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

yes the sticker says delphi E, with a long number next to barcode

if you go to www.billrae.com/car
there are a few more pics of the engine, not much but might help.

I have an hour before advance auto opens, what do you suggest I get while I'm there??

upper and lower gaskets? t/b gasket?

please advise, thanks
commo is offline  
Old 10-31-2004, 10:22 AM   #17
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

I guess i have to remove the upper to replace the manifold gaskets....

can you use mspaint and draw some marks where i need to check for failure (not gasket failure but plastic failure)

thanks
commo is offline  
Old 10-31-2004, 10:30 AM   #18
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

Quote:
Originally Posted by jr's3800
Go here and look at the 3 pics in my post... Thats from Dorman, the maker of the aftermarket upper intake... Hope the Pics will give you an idea of what you are looking for...
http://www.bonnevilleclub.com/forum/...pic.php?t=8522
awesome work, thanks.

will look at it in a few minutes as I yank it off
commo is offline  
Old 10-31-2004, 12:11 PM   #19
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

well, not cool, look what i found:



the hole where the stove pipe goes thru the plenum is warped out of shape and has a deep gash in the side, it has this weird cardboard kind of coating on it, apparently as a feable attempt to insulate the plastic from the stove pipe heat. I cannot tell if it goes all the way through, as the cardboard coating is in the way. Should this hole be perfectly round?

So, you think that aftermarket plenum is the best answer? What about stove pipe mods.
I've read all the related threads and everyone has their own answer it seems.


Thanks for your help.
commo is offline  
Old 10-31-2004, 04:48 PM   #20
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jun 2004
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
commo is on a distinguished road
Default

nevermind, got it.

everything off, just waiting for lower gasket to come in tomorrow
commo is offline  
 
 
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
Intake manifold leak? Abbby 2000-2005 11 01-25-2010 07:20 AM
98 Grand Prix coolant leak around UIM chantspel Pontiac 22 12-04-2009 10:26 AM
Newcomer with coolant leak near upper manifold 96 Bonnevillese 1992-1999 3 11-15-2005 09:31 PM
'94 SSE Series 1 Intake Manifold Oil Leak dougworner 1992-1999 7 03-19-2004 02:40 AM
97 SSE - LOWER intake manifold coolant leak j_ozolins 1992-1999 4 02-11-2004 11:53 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 12:43 AM.


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.