UIM - 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 04-19-2006, 08:07 AM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2003
Location: jacksonville, florida
Posts: 221
Thanks: 0
Thanked 0 Times in 0 Posts
laydbaak is on a distinguished road
Default UIM

Quick question. SSEi owners do not have to worry about the UIM failure, correct? If this is true, where else might I be losing coolant? No visible leaks or coolant on the ground.
laydbaak is offline   Reply With Quote
Old 04-19-2006, 09:12 AM   #2
Junior Member
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

You are correct to a certain degree. Your UIM is the supercharger. If you're loosing coolant, I recommend removing the supercharger and lower intake gaskets. Your lower intake gaskets might be taking a slow, painful death.
vital49 is offline   Reply With Quote
Old 04-19-2006, 09:29 AM   #3
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

Correct. The LIM is the first place to look on an SSEi if there are no visible external drips. Especially if you have sweet-smelling exhaust and you're losing coolant.

If this is happening, replace your O2 sensor when you replace the LIM gaskets. They don't like coolant.
willwren is offline   Reply With Quote
Old 04-19-2006, 12:49 PM   #4
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2003
Location: jacksonville, florida
Posts: 221
Thanks: 0
Thanked 0 Times in 0 Posts
laydbaak is on a distinguished road
Default

OK, The radiator has a small leak somewhere and the reason I saw no coolant on the ground is because it is collecting inside the front spoiler area. Not ready to do a radiator. Any concensus on what is the best off the shelf product I can add to slow the leak down? Or even better, stop it?
laydbaak is offline   Reply With Quote
Old 04-19-2006, 01:00 PM   #5
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Quote:
Originally Posted by laydbaak
OK, The radiator has a small leak somewhere and the reason I saw no coolant on the ground is because it is collecting inside the front spoiler area. Not ready to do a radiator. Any concensus on what is the best off the shelf product I can add to slow the leak down? Or even better, stop it?
A little warning: Adding stop leak products can clog small passageways in your cooling system.

Bars leak has a good reputation for doing a good job. However..being the radiator..it is probably a plastic endcap and as the operating temp is reached it expands and contracts the plastic....it'* doubtful stop leak will work well for this type of leak.
BillBoost37 is offline   Reply With Quote
Old 04-19-2006, 09:01 PM   #6
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2003
Location: jacksonville, florida
Posts: 221
Thanks: 0
Thanked 0 Times in 0 Posts
laydbaak is on a distinguished road
Default

Yes it is in the plastic resevoir. Luckley it is at the top of the cap and as of now does not seem to be too bad. For now I will just make sure to keep extra coolant on hand to top off the overflow tank. Thanks.
laydbaak is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
UIM and LIM replaced now leaking coolant out of UIM gasket Paul1981 2000-2005 10 12-21-2007 11:05 PM
Any 99 owners actually have a failed UIM? gmtorque 1992-1999 3 03-22-2005 02:43 AM
AutoZone has UIM robert76 1992-1999 1 03-18-2005 12:04 AM
Anyone done this UIM mod? big_news_1 Performance, Brainstorming & Tuning 6 11-12-2004 02:52 AM
L26 UIM smellbird Performance, Brainstorming & Tuning 9 09-19-2004 02:28 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 04:53 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.