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Old 07-29-2014, 03:07 PM   #10
MARKDTN
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Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,200
Re: Can an AC Installed make the engine run hotter than before?

Quote:
Originally Posted by brown7373 View Post
You are not anywhere near boiling. Pure water, with a 15 lb. cap won't boil; until about 250. Add the proper 50/50 coolant, and the boiling temperature rises even more. Most vehicles with idiot lights, the light doesn't come on until around 250.
Yep, I used to worry if if went over 180. Now 210 is no problem. It will actually get better mileage the hotter it gets. On 90ish Corvettes and F-bodies the second fan didn't kick on until 230 unless you were running the a/c.
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