93 SSE Arizona Heat, Minnesota Car! - 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 03-12-2006, 10:59 PM   #1
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Default 93 SSE Arizona Heat, Minnesota Car!

My 93SSE has about 195,000 miles, new water pump, 180 degree thermostat, clean radiator, 75% mixture of coolant, new air filter. I pretty much learn about this car as I go. I try to avoid the mechanic as much as possible. I'm not sure what I should be replacing to try to bring my car down to a 200 degree level. Right now above 80degrees outside, it runs about 220-230. I drive about 80miles a day in my car, and I won't be getting rid of her anytime soon. Any directions to go in?
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Old 03-12-2006, 11:43 PM   #2
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Default Re: 93 SSE Arizona Heat, Minnesota Car!

Personally, I would reduce the coolant mix to 50/50. You might find less is more in the cooling dept there. Also, what weight motor oil are you using? I would stick with 10W-30. And maybe, just maybe, that 180 degree thermo(even if new) ain't what she use to be.

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Old 03-12-2006, 11:46 PM   #3
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Absolutely. The 75% mix is hurting you, not helping. Flush/replace with 50%.

180 degree thermostat for sure, and drill four 1/16" holes in the rim as well. Make sure both of your fans work on high speed with the AC in Auto.
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Old 03-13-2006, 07:05 AM   #4
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I'd do a complete cooling system flush when changing coolant to 50/50, and if possible a real good back flush.
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Old 03-13-2006, 10:28 AM   #5
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Yup..what they said. Meanwhile I'm pointing this post out to another Arizona member.
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Old 03-13-2006, 10:54 AM   #6
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First of all, welcome to the club. Where do you live?

Also, you need to make sure your gauge is reading properly so you know that you have an issue and your cooling fans fans are operating when commanded.
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Old 03-13-2006, 04:15 PM   #7
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Having lived in Arizona in the past, I agree with the 50% mix, and if possible, use distilled water. The tap water in Arizona is rich in minerals and sulfates, known also as hard water. You will see a big difference in cooling and life of the coolant. Also, during summer time, you can get away even with a 160 degree thermostat. Also, I suggest you look in the Tech Info section of this site, and do the cooling fan manual switch mod for too.
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Old 03-18-2006, 05:14 AM   #8
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Thanks for the information, i'm going to flush out my car tomorrow, and the fan mod shouldn't be too bad either. I live in Tempe AZ. Right near Guadalupe
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Old 03-18-2006, 05:26 AM   #9
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Welcome to the club
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Old 03-18-2006, 10:42 AM   #10
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Quote:
I live in Tempe AZ. Right near Guadalupe
I still own a home in Mesa; off Crismon and Baseline.
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