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.

LIM Issue Seems Likely

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Old 02-05-2008, 02:02 AM
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One last-un, Haro..
I thought that the Prestone Long-Life DEX compatible antifreeze was the gem, not the green stuff. I'm assuming that the green stuff is ethylene-glycol-based, and I know that mixing that with the G11 and G12 (even mixing the G11 with the G12) that I used to put in my Volkswagens was sudden sludgey death! Even the EG is acidic - though fortunately not as nasty as the Dex. Or is it that I just need to flush the gosh-darned heck out of the cooling system before I throw anything back in?

Also, if I come upon a blocked up coolant passage, should I try to unblock it? I'd think it would be the smart thing to do..
Old 02-05-2008, 07:20 AM
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flush flush flush, and then the GREEN stuff

yes, unblock.
Old 02-05-2008, 02:55 PM
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Aye, Cap'n!

I'll get me spatchela.
Old 02-05-2008, 03:43 PM
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What Haro is suggesting is the G05 based coolant (all makes/all models...mixes with any color), not the old ethylene glycol formulation of the earlier years. The system should still be flushed out well, but it will mix properly with any coolant that is left behind, as there will likely still be some coating various parts of the cooling system.
Old 02-05-2008, 04:11 PM
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Got it.
Thanks!
Old 02-05-2008, 09:57 PM
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Check my heater hose elbow from Kragen'*.
Old 02-05-2008, 11:19 PM
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Haro: You ought to get a Merit Badge for your posts to his questions. Nice job!
Old 02-05-2008, 11:22 PM
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Originally Posted by Barry
Haro: You ought to get a Merit Badge for your posts to his questions. Nice job!
Yeah!
Haro, talkin bout Hero!
Old 02-06-2008, 10:35 AM
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heater hose elbows look good.. same part number, they have too!
Old 02-07-2008, 04:01 AM
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Aww, man!!
The ones I got are backwards!


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