uim/lim changing help and many questions for the right guru - 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.

Reply
 
 
 
Thread Tools Search this Thread
Old 12-24-2006, 04:59 PM   #11
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

I read it but it says the Dorman kit then others say use the APN ??? What route do I use to stand the best chance to fix it once and for all ?
cvc is offline   Reply With Quote
Old 12-24-2006, 05:28 PM   #12
Senior Member
True Car Nut
 
Join Date: Mar 2004
Location: Ames, Iowa
Posts: 3,066
Thanks: 0
Thanked 1 Time in 1 Post
bill buttermore is on a distinguished road
Default

Quote:
Originally Posted by cvc
I read it but it says the Dorman kit then others say use the APN ??? What route do I use to stand the best chance to fix it once and for all ?
You read it?

From Techinfo 38:

"We have recently become aware of a new kit that appears to offer the best off-the-shelf fix for the upper intake manifold. The combination of a metal heat shield to protect the plastic upper and a reduced diameter stovepipe is the best method we can currently recommend to resolve this problem without altering the cooling system. Installed in a 95-98 engine using the reduced diameter pipe supplied with the kit, an insulating gap of .125 is created between the hot pipe and the heat shield. Installed in a 99 or newer engine using the stock GM 5/8 stovepipe, an insulating gap of .065 is created. The kit is marketed mail-order by Automotive Parts Network; it includes a UIM gasket and is priced under $100. http://www.autopn.com/store/pc/viewP...product=229679 To obtain the larger .125 insulating gap in the newer 99+ models, the .750 shoulder of the replacement stovepipe provided in the kit could be machined to .625 to fit the smaller stovepipe bore in the lower intake manifold. "

And.....

"GM Aluminum Frame Lower Intake Manifold Gaskets. We hope that this newest design will provide the best LIM gasket fix yet. As of March, 2006, these are available at the dealer for $59 "
bill buttermore is offline   Reply With Quote
Old 12-24-2006, 05:45 PM   #13
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

hummm so I would need to go and have this new replacement stove pipe machined down ? I assume to go to GM dealer for LIM gasket set and coolant elbows. Do I need to change BOTH elbows? What OTHER items do I need ? Do you guys know if anyone has a scanned copy of a service manual showing or telling step by step or anyone near me ( Syracuse NY) ? I would like to know up front what needs to be removed and what doesnt ie; alternator,tenisoner,etc. What torge specs for UIM and LIM are ? I read somewhere the LIM gaskets on the 99+ models were supposed to be ok, is this correct ? Thanks guys im just trying to get ready. I know sometimes the manuals have you remove things that dont need to be removed, maybe somewhere here knows for sure. thanks again !
cvc is offline   Reply With Quote
Old 12-24-2006, 05:57 PM   #14
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

The APN kit COMES with a new reduced diameter stovepipe. Please take the time to read that article.
willwren is offline   Reply With Quote
Old 12-24-2006, 06:02 PM   #15
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

I did read this

"To obtain the larger .125 insulating gap in the newer 99+ models, the .750 shoulder of the replacement stovepipe provided in the kit could be machined to .625 to fit the smaller stovepipe bore in the lower intake manifold"

Am I missing something or does it clearly state that the stove pipe be machined for 99= models ??

I realize the part come IN THE KIT but appears that it needs to be machined again I did read it asnd copyed it above so you can see it
cvc is offline   Reply With Quote
Old 12-24-2006, 07:18 PM   #16
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

just noticed 2 things; first on my 99 PA the plastic end pcs of the LIM gasket are orange, isn't that consistent with the new aluminum style GM gaskets ? I noticed that in the picture showing the new style gasket set.

Also I reread the article an it says "In the later model years (99+), GM went to a smaller diameter (5/8) EGR pipe that creates a 0.065 air gap between the hot pipe and the plastic EGR bore hole in the upper intake. We are not sure if that is a cure though "

So my car should have the smaller dia stove pipe now correct ? Wondering if the LIM gaskets are already the new style ( note orange end pcs) then maybe I dont need to monkey with the LIM ?

I realize im trying to come up with a way that I dont have to worry about this failing, bear with me my meds will kick in soon !

Never mind first question the orange looks to be silicone not the end pcs
cvc is offline   Reply With Quote
Old 12-24-2006, 09:31 PM   #17
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

The aluminum framed gaskets are VERY new. Just in the last 4 or 5 months.
willwren is offline   Reply With Quote
Old 12-24-2006, 10:46 PM   #18
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

wishfull thinking on my part, oh well anyone care to come up to Syracuse NY and oversee a project ,lol I am not sure if I should do the PA right now or give it some time.I know my Bonnie was done before it had 60k on it and it now has 212k on it and still seems ok so if the PA was done after 2002 it only has 70k now.. Do you guys think if I keep a real close eye on it and notice ANY loss of coolant get right on it I will not have a catastrosic failure ?? I just chgd the coolant and did the thermo chg I hate to redrain and get into a UIM/LIM chg now... Do you need to drain the whole system ?
Man I will never sleep tonight...
cvc is offline   Reply With Quote
Old 12-24-2006, 11:05 PM   #19
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

This is the LIM gasket that was removed from a '99 Olds 88 with less than 50,000 miles.

Name:  LIMgasket.jpg
Views: 0
Size:  54.3 KB

The car was well cared for and not abused. No one will be able to make you a guarantee that "watchful waiting" will be sufficient to prevent a failure.

At the very least, the radiator should be drained to a level lower than the upper radiator hose...if....you get to things before a failure.
Archon is offline   Reply With Quote
Old 12-24-2006, 11:39 PM   #20
cvc
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2004
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
cvc is on a distinguished road
Default

I wonder if that was the orignal gasket set ? And I wonder if mine was chgd when the UIM was chgd. I wish I only knew..Its so puzzling why my Bonnie I have driven over 150k miles with no problems but now im being told to chg my PA UIM and LIM gaskets with only 70k total miles and a 2002 UIM ? It seems as though if I keep a close eye on it which I always do I would know when it starts to seep...Oh well I always thought these motors were problem free.
cvc is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
UIM/LIM gasket questions (yes, I have searched and read some) Maximus 2000-2005 44 03-03-2011 08:27 AM
UIM/LIM, VC, and DEXCOOL Questions. SpringCitySSEi 2000-2005 5 12-28-2007 11:24 AM
UIM and LIM replaced now leaking coolant out of UIM gasket Paul1981 2000-2005 10 12-21-2007 11:05 PM
My UIM/LIM: Pics and questions Boreas 1992-1999 10 06-09-2007 01:52 PM
MANY thanks for BC club advice on UIM/LIM problem two bonnies General GM Chat 8 02-26-2007 09:15 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 12:37 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.