The Ultimate Cooldown... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 07-28-2006, 02:23 PM   #11
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Quote:
Originally Posted by Blownville
I may be wrong so don't quote me on this. I thought when you took the t-stat out completley it makes a vehicle run hotter due to the fact that the coolant isn't able to sit in the radiator long enough to cool? If this is the case I could see why your temps are hot. Now on the other hand I had the same problem and I put the 180 stat in and it did nothing to help the temps. Then I read the post on here about the fan override. I hooked my fans up so that they run as soon as you turn the ignition on, and presto!! It runs just under 200 all the time now! I love it. I am gonna run a switch when I run my power wire to my amps. You might want to try the fan override and put a 180 stat in.
You are correct... Running without a thermostat can be worse.. for the very reasons that you have stated..

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Old 07-28-2006, 02:30 PM   #12
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wow this is a lot of info.

I think for the most part my radiator is fine. When my dad & i flushed the system [last year] we checked those things out and everything looked good. Plus when the car has good air flowing through it [i.e. highway travel] things cool down. WP seemed to be working fine too b/c when the tstat opens eveything got sucked right down...this was a year ago tho.

I am interested in doing the fan override. Is there a tech info on this? If someone can send some instructions on how to do the low & highspeed fan overrides that would be good.

Any suggestions about touching the EGR Valve? I'm tempted to clean it as this may help, but i don't have an SES light for it. So i'm thinkin if its not broke - don't fix it, right?
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Old 07-28-2006, 04:52 PM   #13
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Quote:
Originally Posted by Blownville
I may be wrong so don't quote me on this. I thought when you took the t-stat out completley it makes a vehicle run hotter due to the fact that the coolant isn't able to sit in the radiator long enough to cool? If this is the case I could see why your temps are hot. Now on the other hand I had the same problem and I put the 180 stat in and it did nothing to help the temps. Then I read the post on here about the fan override. I hooked my fans up so that they run as soon as you turn the ignition on, and presto!! It runs just under 200 all the time now! I love it. I am gonna run a switch when I run my power wire to my amps. You might want to try the fan override and put a 180 stat in.
You are absolutely correct. The t stat also regulates the flow of coolant through the system. With it gone, the coolant travels way too fast through the radiator too effectively cool. I ran the 180 in my SC Bonnie to no avail either. I'll try the always on fan next.
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Old 07-29-2006, 12:02 AM   #14
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I wired a switch to my High Speed Fan relay and presto cool all the time. Find the high speed relay (max-fuse panel, second from the right while facing the fuse panel) and ground the blue wire. At least it is blue on my 95 SSEi. I tapped into the wire. I wouldn't cut it because there'* not much wire to work with. Do not apply 12v power to this wire, as you will be switching the ground. I then ran the wire thru the firewall and placed a switch on my console.
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Old 07-29-2006, 04:50 AM   #15
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as much as i would love to do the highspeed fan mod. I am retarded when it comes to electrical work. So all the splicing, grounding, switching, etc. Is all foreign to me lol.

Can someone break down the whole procedure with me step-by-step in plain English. Including all of the things I would need?

btw, still gonna get the coolant flushed. Its filthy...almost looks like oil...but i checked the oil and there'* no coolant in it. System just needs a good cleaning...and this fan override...
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