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Old Jun 17, 2021 | 05:27 PM
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Default getting hot

i have a 2002 zo6 and I'm having a heating problem only when its hot out side and with the a/c is on.the temp runs at 200 with out a/c when i put the a/c on it takes a min then goes above 220 turn off a/c it takes a min then goes to 200 now on a cool day i can run the a/c and it stays at 200 anybody heard of this problem or have had this problem any help will be highly appreciated.
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Old Jun 17, 2021 | 05:45 PM
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I see those temperatures regularly (same car). Pretty sure 200-220/30 is considered "normal operating temperature". I'm still more or less a corvette noob though so take that with a grain of salt. At least until someone else confirms. Ha
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Old Jun 17, 2021 | 06:32 PM
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I agree, that is normal and nothing to worry about.
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Old Jun 17, 2021 | 06:48 PM
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220 is not hot.

Your fan doesn't even come on until 226. Then the high speed fan kicks in at 235 (or if the AC is on).

Remember: water boils at 212 at sea level and AT ATMOSPHERIC PRESSURE. Your cooling system is neither 100% water (I hope) nor at atmospheric pressure.


No worries.
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Old Jun 18, 2021 | 12:36 AM
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When A/C is ON, the car should have low speed fans going. Does it?

"When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph)."
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Old Jun 18, 2021 | 01:17 AM
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Moved to C5 Tech.
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