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.

cooling fans

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Old 09-11-2007, 08:54 AM
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Its Clearer Now. Just That I Eont See Why The Temps Arent Kept Lower In The 1st Place :?:
Old 09-11-2007, 09:00 AM
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That is where GM programmed them. Our engines run cleaner being nice and toasty...but there'* a balance between hot and running well.
Old 09-12-2007, 01:21 AM
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Default cooler vs hotter

Originally Posted by BillBoost37
That is where GM programmed them. Our engines run cleaner being nice and toasty...but there'* a balance between hot and running well.
I Think I Get It Bill. Cooler=HP , hotter=reliability. close?
Old 09-12-2007, 08:12 AM
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Not quite.

Hotter = more efficient and cleaner running. Meanwhile..it shortens engine life.
Cooler = Less efficient..longer engine life and happier person driving.

I hated it when my gauge went over 210F all the time. I'd get off the highway..hit a stoplight and up went the temp.
Old 09-14-2007, 10:50 AM
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If my temps get hot during city driving I I can get my fans to come on by hitting ac button. I then wait to hear the comp to come on with the fans. I then hit ac button again which turns ac off but the fans stay on until temp comes down. I have auto climate and it seems to work without adding an additional by pass switch
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