09-29-2007, 07:35 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
If your car was not overheating before you replaced your thermostat, you probably just got a bad new thermostat -- you could also have air in the system as well I suppose. It's very easy to test your thermostat. What I would do is pull the new one out and put the old one and the new one in to a pot of water on the stove and heat them up and watch them. If the new one is bad, it will be obvious.
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