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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.

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Old 03-21-2003, 11:44 PM   #1
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Default An idea for running cooler...

Why not buy and put on an aftermarket electric fan on in place of one of the factory radiator fans, and maybe get the kind like in JC Whitney with the thermostat that goes into the radiator hose or something similar? You could get one that comes on a your chosen preset temp, like 180 or so. You could still tie it into the original wiring so that it comes on when the AC is turned on.
Then you'd be bypassing the PCM'* control of it and have it come on when you want to.
What do you think?
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Old 03-22-2003, 12:27 AM   #2
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You can already bypass the PCM'* control of the fans w/ the $5 dollar modification. So it'* already been done, sorry someone beat you too it.
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Old 03-22-2003, 12:34 AM   #3
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So where does one go for this mod? I was reading posts about when the fans come on, and everyone seemed to be compaining that the PCM waited until 220 or much higher to kick them on.
What is the mod you are talking about?
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Old 03-22-2003, 12:46 AM   #4
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This is the "retail" version

http://www.zzperformance.com/zzp/pro...witch_hilo.htm

But if you search on ClubGP, you will find tons of threads about how to do it for $5 bucks.
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Old 03-22-2003, 01:26 AM   #5
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But this looks like you would have to manually turn the fan on and off, am I understanding it correctly?
I'm talking about installing an aftermarket eletctric fan with it'* own thermostat set to turn the fan on at a lower temp like 180 or 190.
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Old 03-22-2003, 03:14 AM   #6
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No, the $5 dollar mod will still have the PCM control it and you have a switch to override it. But why would you add another fan and thermostat.... Getting complicated.
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