Coolant smell - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-06-2006, 02:23 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Andover, MN
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Brutus is on a distinguished road
Default Coolant smell

I have a 2000 SSEi. When I stop at a stop sign, sometimes I seem to get a whiff of coolant when I stop. I have searched everywhere in the engine bay and can not find any external leaks. The exhaust pipe doesn't seem sticky. It doesn't seem to be using any coolant (I've had the car less than a month though). From reading here, it seems that the intake manifold gaskets fail on these engines frequently. Would any of you say this is an early warning sign of that?

Would a tube of that silver seal pellets/powder placed in the radiator help with this?
Brutus is offline   Reply With Quote
Old 10-06-2006, 02:43 PM   #2
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

HEater core maybe?
Rogue is offline   Reply With Quote
Old 10-06-2006, 11:21 PM   #3
Senior Member
Posts like a Northstar
 
Join Date: Dec 2002
Location: Bellbrook, Ohio
Posts: 547
Thanks: 0
Thanked 0 Times in 0 Posts
compyelc4 is on a distinguished road
Default

<<Would a tube of that silver seal pellets/powder placed in the radiator help with this?>>

Would not hurt. Might help.

Those "slight whiffs" are tough to troubleshoot. Mine did that. I started searching with a small mirror and strong light. Found that my radiator cap would seep off a drop or two, then dry right back up. A very close inspection revealed a very slight dried trail of anti-freeze down the front side of the filler lip. A new cap solved that one.
compyelc4 is offline   Reply With Quote
Old 10-08-2006, 06:32 PM   #4
Senior Member
Posts like a Northstar
 
Join Date: Sep 2005
Location: Dayton, OH
Posts: 600
Thanks: 0
Thanked 0 Times in 0 Posts
imidazol is on a distinguished road
Default

Before I put in a commercial product sealer,...

Have you changed the antifreeze in the car? When you did, were a couple of pellets of the GM'* antileak put in?

I have an 03 and it had the recall for bolt modification on throttle body and when they did it, they put in 5 pellets of crushed (organic material) from GM that will seal seeps. They leave a brown color in overflow so GM had left them out to impress new car buyers.

But I read that when draining antifreeze at 2 years for changing, the antileak needs to be refreshed. So I bought a pack and have put in two every time I drain and change antifreeze at home.

Stop at your Pontiac or Gm dealer for them. There'* a version for Northstars and a different version for other GM motors; be sure you get the right ones.
imidazol is offline   Reply With Quote
Old 10-10-2006, 04:42 AM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Andover, MN
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Brutus is on a distinguished road
Default

Quote:
Originally Posted by imidazol
Before I put in a commercial product sealer,...

Have you changed the antifreeze in the car? When you did, were a couple of pellets of the GM'* antileak put in?

I have an 03 and it had the recall for bolt modification on throttle body and when they did it, they put in 5 pellets of crushed (organic material) from GM that will seal seeps. They leave a brown color in overflow so GM had left them out to impress new car buyers.

But I read that when draining antifreeze at 2 years for changing, the antileak needs to be refreshed. So I bought a pack and have put in two every time I drain and change antifreeze at home.

Stop at your Pontiac or Gm dealer for them. There'* a version for Northstars and a different version for other GM motors; be sure you get the right ones.

I haven't changed antifreeze. It looks fresh though, so I think dealer must have just done it. Thanks for the suggestion though. I'll check into that.
Brutus is offline   Reply With Quote
Old 10-10-2006, 12:30 PM   #6
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

I wouldn't aim for any sealers until I found a leak, determined it to be small.

A heater core leak will usually leave antifreeze film on the windshield.
Check for a leak where the coolant elbow enters the lower intake and accessory bracket.
Check under the throttle body for any leaking
Look at both black plastic endcaps of the radiator (to the best of your ability) for leaks/cracks.
Check where each hose is connected for any signs of leakage

For you to smell it, then it is leaking somewhere in the engine bay or heater core. The key being externally.. therefore you should be able to find it. If the engine is a little dirty..a cleaning will assist in finding the problem area.
BillBoost37 is offline   Reply With Quote
Old 10-11-2006, 03:36 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Andover, MN
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Brutus is on a distinguished road
Default

Yes, this coolant leak and/or smell has me stumped. I have looked all over the engine compartment three different times. There is no coolant anywhere. There is a little oil on the rear cylinder head, but it is very minor. I've checked hoses, radiator, cap, everywhere.

There is no coolant in the cabin...like what typically happens if a heater core fails. There is no coolant on the garage floor.

The thing that is weird is that I don't notice it until I stop at a light. If it were a constant leak in the core, or somewhere else in the engine compartment, I would think that I'd smell it all the time, not just when stopped.

I've marked the ouside of the coolant recovery tank. In three weeks, it may have gone down 1/16 to 1/8 inch at the most. It is hard to tell if it went down at all.
Brutus is offline   Reply With Quote
Old 10-11-2006, 11:48 AM   #8
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

Back a few months, another member had a similar problem, and posted this thread on what he did during his search.

http://www.bonnevilleclub.com/forum/...131&highlight=

I don't believe that he ever reported finding it.
Archon is offline   Reply With Quote
Old 10-11-2006, 12:19 PM   #9
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

Have you pulled your plugs to look at them?
Rogue is offline   Reply With Quote
Old 10-11-2006, 12:20 PM   #10
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

I assume the engine block is clean and free of any excess coolant that may have been bled under the engine cover onto the top of the block?

Reason I ask is every time I bleed the system..I wash down the motor to get the excess coolant off the engine. Otherwise I end up smelling it, even long after it'* dry and burned off.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
98 se strong coolant smell 98seGuy 1992-1999 13 04-21-2006 09:18 AM
Coolant Leaking (Burning?) Smell 92BonneSE 1992-1999 2 02-03-2006 10:56 PM
Good news.. Coolant Smell on SSEi found.. Ivory03 2000-2005 4 01-11-2006 08:54 PM
coolant smell bonnevillemac 2000-2005 8 11-08-2005 01:46 AM
coolant smell -- 99 SE vital49 1992-1999 4 05-17-2004 05:53 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 08:15 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.