same here 
Coolant Temp
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Joined: Oct 2005
Posts: 99
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From: Pope AFB NC
Coolant Temp
I have had my 99 vette for awhile now. like 4 months. I was wanting to know what the coolant temp shold be at? Mine is arond 207 driving and 216 sitting idle. Is this correct or not? If its not and im hot what wold it be?? thanx Nate 
Melting Slicks
Joined: Nov 2005
Posts: 2,071
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From: clackamas oregon
i have a stk replacement and run just under 200. but its around 40 degrees here. i had a 160 t-stat but it fell apart on me, and i couldnt get over 120 then after for ever of driving. my car seems to like the stock one more than the other, heats up fast and stays there. my heater works better too
Tech Contributor
Joined: Dec 2003
Posts: 19,384
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Originally Posted by BlackMidNite
I have had my 99 vette for awhile now. like 4 months. I was wanting to know what the coolant temp shold be at? Mine is arond 207 driving and 216 sitting idle. Is this correct or not? If its not and im hot what wold it be?? thanx Nate
Have you checked to see if you've picked up rubbish in the radiator?
Pro
Joined: Jun 2005
Posts: 537
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From: NorCAL Live your passion--why wait, you ain't getting any younger
2002 A4, stock thermostat.
198-199 Hwy, typical all year round. In the desert with 115 outside, was 210-215 at 75mph cruise.
210-225 In town, depending on the stop and go, but on hot summer days maybe as high as 235. Usually, I can get it back to 200 with the A/C on and the engine fans running.
198-199 Hwy, typical all year round. In the desert with 115 outside, was 210-215 at 75mph cruise.
210-225 In town, depending on the stop and go, but on hot summer days maybe as high as 235. Usually, I can get it back to 200 with the A/C on and the engine fans running.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
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From: American Canyon Lethal Injection
Originally Posted by BlackMidNite
hmmm maby ill get the 160 stat. I shold gian a little more HP being cooler right.
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Melting Slicks
Joined: Nov 2005
Posts: 2,071
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From: clackamas oregon
UPDATE. i read mine all the way home and all the way bnack to work today. i never got hotter than 187. with my stk one i installed a few weeks ago. outside temp 48. i understand stk ones can have a 10 degree variance. as all can. so i think your in range for the norm. check your radiator for leafs and other junk though. i seen a post here a week ago that showed lots off trash in the front of it. even a mcdonalds cup.
Melting Slicks
Joined: Jul 2004
Posts: 2,340
Likes: 35
From: Folsom Lake CA
200 - 210, give or take a few degrees, is normal, but sucks. When I switched to a 160, alot of problems, including pinging and lack of power when hot went away. I even got better gas mileage. Note, however, that you'll need to retune either via a professional tuner, tuning software, or a handheld programmer to adjust the fans to come on at a lower temp, too, for optimal results. Otherwise the temps will still hit the 200 range in town during the summer, and often even higher at traffic lights. Of course, there are also those add-n fan temp switches, but they seem kind of high-school-mod-ish, to me.
Team Owner
Joined: May 2001
Posts: 25,065
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From: Virginia
St. Jude Donor '11
Originally Posted by rrichar2591
On long road trips and 80mph, I see 200 degrees and above quite frequently. Mine is an 04 with the stock thermostat.
