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Old 01-16-2013, 03:00 PM   #31 (permalink)
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Originally Posted by Carbon Sky View Post
I really wish people would stop adding additives to their coolant. But anyways that's a personal gripe.

There is no way any additive can drop temperature too much, sounds a lot more like classic symptoms of a failing/sticking t-stat.
Back when it was still hot outside it dropped temps about 5-6 degrees. Unfortunately, I think the coolant doesn't need that kind of drop during the winter.

So it warmed up a little today I the mid 40s. On the drive home the temperature gauge came back on.


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Old 01-17-2013, 03:35 PM   #32 (permalink)
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Old 02-26-2013, 01:44 PM   #33 (permalink)
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So - I'm not really all that handy.

My coolant light has been coming on and I've got the money to get it fixed.
My question - do I take it to the local automax only a few blocks from my house or should I just play it smart and take it the GM Dealer?
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Old 02-26-2013, 02:19 PM   #34 (permalink)
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Any competent shop should be able to fix the problem.

There are plenty of examples of GM service departments not having experience with our cars and not fully implementing the factory procedures . .. and we ended up with bent fenders, air bubbles in the coolant . ..

If it were me, I would have a conversation with the GM service manager and make sure he knows what he is going to do and get his committment to following thorugh. If you do not get a warm fuzzy, do the same with the mechanic of your choice.
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Old 03-02-2013, 08:32 PM   #35 (permalink)
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I took it to GM Friday. I'm very happy with everything so far. The sensor was bad. They said they had to replace the coolant tank. Total charge for that was $170. While I was there, I got my oil changed and also had them flush the transmission fluid (it was due).

Out the door total was $525.

Maybe tomorrow I'll spend the day washing my car. That's due too.
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Old 03-04-2013, 04:54 PM   #36 (permalink)
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I apologize for any inconvenience these has caused. Please keep us posted on repair status and/or dealership service. Please do contact us privately but please include your VIN#, name, situation, dealership, contact information. I hope is well considering

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Old 08-05-2013, 07:56 AM   #37 (permalink)
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I have a 2006 Solstice. I am on my third go around with this problem. First the dealer replaced the T-stat (o-ring was clearly warped). The second time they claimed it was the temp sensor, so no warranty for me. How much you want to bet they blame the t-stat this time, since that repair is now out of warranty? I refuse to pay $300 every other year to fix this issue for the life of the car. Is there no permanent solution for this problem, other than selling the car?
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Old 02-06-2014, 12:21 PM   #38 (permalink)
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It's a little tight to access the t-stat, but otherwise, replacing a t-stat is really cheap. Maybe $10 in the t-stat for an OE AC delco unit, and about the same in coolant and distilled water. So $20 and your time, which should be about 2 hours or so from start to finish (including adding the check valves if you have not already) and "bleeding" the system of air . . . and is a permanent solution. I flushed out my Dexcool about 2 years ago, and still no overheating, in fact it runs cooler now than it ever did from factory.

Last edited by Carbon Sky; 02-06-2014 at 12:24 PM.
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Old 02-14-2014, 01:29 PM   #39 (permalink)
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It's a little tight to access the t-stat, but otherwise, replacing a t-stat is really cheap. Maybe $10 in the t-stat for an OE AC delco unit, and about the same in coolant and distilled water. So $20 and your time, which should be about 2 hours or so from start to finish (including adding the check valves if you have not already) and "bleeding" the system of air . . . and is a permanent solution. I flushed out my Dexcool about 2 years ago, and still no overheating, in fact it runs cooler now than it ever did from factory.
so you did not refill with dexcool?did you use the green antifreeze?
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Old 02-14-2014, 03:48 PM   #40 (permalink)
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so you did not refill with dexcool?did you use the green antifreeze?
Stayed with Dexcool, but ran distilled through the system before refilling with fresh Dexcool.
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Old 02-15-2014, 09:43 AM   #41 (permalink)
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so you did not refill with dexcool?did you use the green antifreeze?
Green color is no guarantee that your antifreeze is not a dexcool-equivalent formulation. Seems most antifreezes you can buy now, are dexcool equivalents. See: So, changing coolant and don't want Dex-Cool? Read on, you may be surprised...
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Old 02-17-2014, 06:40 PM   #42 (permalink)
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A couple of pictures of the old vs. new thermostat. I replaced mine about a year ago and it permanently fixed the problem. As you can see the center seal is gone so the thermostat allows some water to flow through at any temperature.

The one I removed from the vehicle is on the left and the one on the right is the new, replacement thermostat



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Old 02-26-2014, 03:17 PM   #43 (permalink)
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wow. How sad. i have a 2008 Turbo with 12000 miles. engine light one - dealer said 600$ to change the coolant fan which is operating intermittantly. I've left it in the garage. DANG
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Old 06-09-2014, 08:24 AM   #44 (permalink)
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A couple of pictures of the old vs. new thermostat. I replaced mine about a year ago and it permanently fixed the problem. As you can see the center seal is gone so the thermostat allows some water to flow through at any temperature.

The one I removed from the vehicle is on the left and the one on the right is the new, replacement thermostat



Hi - Is the new thermostat an AC/Deco unit or aftermarket? Thanks!

- Frank
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Old 06-09-2014, 08:08 PM   #45 (permalink)
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Dave from DDM has advise to have the thermostat replace with a Delco part and not an aftermarket.
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