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Corvette
Corvette Tech Questions & DIY
C6 Corvette - Overheating.
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<blockquote data-quote="Messner" data-source="post: 172624" data-attributes="member: 4797"><p>As summer continued my car was running warmer and warmer especially in heavy stop and go traffic on hot days. So I cleaned the rad/condenser again (made a bit of difference but not enough). I decided to go to the next step:</p><p></p><p>Excited & Getting ready for Kentucky! </p><p></p><p>Thought my (new to me last year) 2007 C6 Roadster might still be running a little bit warm. So best be sure she is ready for the trip which I’m sure will have some hot days and heavy slow traffic. (Can be hard on coolant temps). </p><p></p><p>Decided to start with the thermostat. </p><p>Went with a stock AC Delco - 86C (187F) thermostat (from Shaganappi Chev in Calgary) which was $100.00 cheaper than a local shops Cochrane (yes you read that right)!</p><p></p><p>First I checked it to make sure it was opening properly in a pot of boiling water and yes it was. Next I ran the car up on ramps and drained the radiator. Pulled the old thermostat out and replaced it with my new “made in Japan” AC Delco model. </p><p></p><p>Buttoned it all back up. Refilled her with Dex Cool and burped her several times to make sure no air was caught up inside. </p><p></p><p>Checked in with a friendly GM Mechanic who got me these stats for a 6 Liter, 2007 model:</p><p>1. Thermostat should start opening at 87C/187F.</p><p>2. Low fan should come on at 95C/203F.</p><p>3. High fan should come on at 113C/235F.</p><p>4. Warning lights on dash at 125C/257F (scary hot!).</p><p></p><p>It’s an easy job and I wouldn’t hesitate to do it myself again. Easier to get at (than I thought it would be) to get to what you need to. Car is running much cooler in heavy stop & go traffic now! </p><p></p><p>Saved just over $400.00 as that same shop wanted to flush it too and you guessed it - it did NOT need it! - Love my Vette!!! <img class="smilie smilie--emoji" loading="lazy" alt="😆" title="Grinning squinting face :laughing:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f606.png" data-shortname=":laughing:" />[ATTACH=full]30044[/ATTACH][ATTACH=full]30045[/ATTACH][ATTACH=full]30046[/ATTACH]</p></blockquote><p></p>
[QUOTE="Messner, post: 172624, member: 4797"] As summer continued my car was running warmer and warmer especially in heavy stop and go traffic on hot days. So I cleaned the rad/condenser again (made a bit of difference but not enough). I decided to go to the next step: Excited & Getting ready for Kentucky! Thought my (new to me last year) 2007 C6 Roadster might still be running a little bit warm. So best be sure she is ready for the trip which I’m sure will have some hot days and heavy slow traffic. (Can be hard on coolant temps). Decided to start with the thermostat. Went with a stock AC Delco - 86C (187F) thermostat (from Shaganappi Chev in Calgary) which was $100.00 cheaper than a local shops Cochrane (yes you read that right)! First I checked it to make sure it was opening properly in a pot of boiling water and yes it was. Next I ran the car up on ramps and drained the radiator. Pulled the old thermostat out and replaced it with my new “made in Japan” AC Delco model. Buttoned it all back up. Refilled her with Dex Cool and burped her several times to make sure no air was caught up inside. Checked in with a friendly GM Mechanic who got me these stats for a 6 Liter, 2007 model: 1. Thermostat should start opening at 87C/187F. 2. Low fan should come on at 95C/203F. 3. High fan should come on at 113C/235F. 4. Warning lights on dash at 125C/257F (scary hot!). It’s an easy job and I wouldn’t hesitate to do it myself again. Easier to get at (than I thought it would be) to get to what you need to. Car is running much cooler in heavy stop & go traffic now! Saved just over $400.00 as that same shop wanted to flush it too and you guessed it - it did NOT need it! - Love my Vette!!! 😆[ATTACH=full]30044[/ATTACH][ATTACH=full]30045[/ATTACH][ATTACH=full]30046[/ATTACH] [/QUOTE]
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Corvette
Corvette Tech Questions & DIY
C6 Corvette - Overheating.
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