T-stat - 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 06-11-2004, 03:42 PM   #1
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Default T-stat

Can somebody tell me where they purchased there t-stat at is there one brand better than another or what? Also what should I look for in a trans cooler?
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Old 06-11-2004, 04:28 PM   #2
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Default Re: T-stat

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Originally Posted by kennyabomb
Can somebody tell me where they purchased there t-stat at is there one brand better than another or what? Also what should I look for in a trans cooler?
Autozone has a t-stat and a universal tranny cooler. Just ask at the counter, they should be able to help ya.
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Old 06-11-2004, 05:08 PM   #3
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I assume you're wanting a 180 to replace the stock 195? If so, just tell them that at the parts counter. Don't forget the fiber housing gasket AND rubber seal.
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Old 06-11-2004, 05:28 PM   #4
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Default 180* T-Stat

Are there side effects from this modification as far a fuel economy.
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Old 06-11-2004, 06:02 PM   #5
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Some people have also commented that fuel efficiency is diminished by 4-5 less MPG.
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Old 06-11-2004, 06:04 PM   #6
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Some people have also commented that fuel efficiency is diminished by 4-5 less MPG.
Yet, some have commented that there was no change. :shrug:
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Old 06-11-2004, 06:27 PM   #7
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Quote:
Originally Posted by ssesc93
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Some people have also commented that fuel efficiency is diminished by 4-5 less MPG.
If that were always true, then if I put the 195 back in my car, in place of the 160, I'd get like 32mpg.

Try it and see what happens. It'* worth a shot.
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Old 06-11-2004, 11:04 PM   #8
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Hey folks, new guy here. Been lurking for a few weeks, and thought I'd jump in here.


Regarding t-stats, the quality has taken a dumper on these things in the last 10 years. To avoid some of the cycling (on a 195 - opening at 205, falling to 180, swinging back and forth - then finally settling down, those types of things) - the hot ticket - pun intended, is to drill two 1/8" holes thru the thermostat, 180 degrees from each other. It will ELIMINATE the cycling, and it will also drop the temp rating around 5-10 degrees. It slightly adds to the warmup time, but I can certainly live with that. No drop in fuel economy (I get 29 on the highway with wife and 2 kids - and 25 in mixed driving - car just turned 120K).

Bought my 95 in 2002, intake was replaced prior to my purchase. Hope its a good one. And thanks for the tip on the foglights. I impregnated a racoon with foglight parts last week, and got a $56 quote on a new one. Those Navigators from Wally-World are the cats ***!

Anyone want to buy just 1 OEM foglight? $20 shipped!
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Old 06-11-2004, 11:29 PM   #9
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My 180 is drilled

Alot of that depends on your climate. It'* alot easier for me to get away with that on the West Coast than it would be for someone in MN. For that to work, you'd need to use 2 thermostats by season.

But you're right, it'* a good mod. Just make sure you de-burr and rinse the stat well after drilling.

Welcome!
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Old 06-15-2004, 02:54 PM   #10
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And where exactly do you drill the two holes on the t-stat?
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