Coolant Disappearing? - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-01-2007, 12:27 AM   #21
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You know... The LIM gaskets degrade on their own, If they're original thay're probably bad. Do you have oil leaks around the LIM? That'* normally a pretty good indicator.
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Old 01-01-2007, 12:28 AM   #22
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Mistake
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Old 01-01-2007, 12:32 AM   #23
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Quote:
Originally Posted by Damemorder
You know... The LIM gaskets degrade on their own, If they're original thay're probably bad. Do you have oil leaks around the LIM? That'* normally a pretty good indicator.
WELL, I have oil pooling on the inside of the UIM where it seats with the LIM but umm, thats only because my PCV line is leaking it...and if thats not it...then umm, yeah then my LIM gaskets are just bad just because I am getting up there im mileage....
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Old 01-01-2007, 12:49 AM   #24
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Quote:
Originally Posted by Technical Ted
Don't worry too much if you haven't noticed excessive steam coming from the exhaust or milky oil. I doubt if having "Dex-Cool" in the coolant for 16 months has anything to do with your current problem - just wondered why you did it.

I don't think any of us really know what'* in the" Prestone Dex-Cool Approved". The gearheads were debating this on Friday. I tried calling Prestone on Friday but called too late. I'll try again on Tuesday.

Edit - You should get a pressure test done.
Just noticed your edit. Where would I go about getting one done and how much do they cost?
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Old 01-01-2007, 12:55 AM   #25
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Any radiator shop or full service garage should be able to check it. Don't know what they'll charge - call around.
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Old 01-01-2007, 12:59 AM   #26
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I'm having the same exact problem. Pooling around intake gaskets, not so milky oil [for some reason every time i check the oil it is just a tad bit more full... not noticable between weeks but overall it'* obvious... but you couldn't tell by looking at the fluid colour]. I can swear I smell coolant burning in the exhaust, but nobody else can smell it. And I blew a lower radiator hose and didn't overheat the car, but it got a lot hotter than it usually does. Ever since then, i've been having these issues. No noticable coolant loss... although like wj every once in a while i'll pop the hood and the overflow tank will be empty. Nadda on the ground, for sure.

wj, I have a feeling our driving habits are similar, and that our problems and solutions are the same as well.

EDIT: oh yeah, I have an idle problem, cold -2500RPM, warm 2k, but if it does that, i shut it off and it'll idle at 1k. Spraying brake clean around the intake gasket does nothing, but there is a ton of grease/oil buildup around it, so my guess is it wouldn't suck it in anyways.
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Old 01-01-2007, 01:35 AM   #27
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OSG, are you getting any codes on that idle? I had that problem after I overheated mine.

But yeah, after driving for about an hour the other day I looked in the tank to see the level and it was at the cold level even though I had filled it to the hot level JUST before that drive.
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Old 01-01-2007, 02:35 AM   #28
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So... when you heat the car the coolant quickly disappears... Like say... when the LIM gaskets are under their most stress?
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Old 01-01-2007, 02:37 AM   #29
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Ooops, shoulda been more specific. The radiator was also very low at the time, I was just saying how empty the rad was in the first place.

But like I said before, the tank usually empties out in a month.
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Old 01-01-2007, 02:46 AM   #30
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So.. You drove the car knowing that the coolant system wasn't up to par and you're wondering why it'* broken?

Look. You need to put thing things in order or something. What was the car doing when, and what is it doing now.


Then walk outside and smell your exhaust.
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