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Installed a thermostat in a 2004 Chevrolet Classic 2.2L and the vehicle overheats. Did I install it backwards? There was previously no thermostat installed in vehicle, how do I know which way to install thermostat?

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There is a more solid side to the thermostat, and this side goes towards the engine, away from radiator.

I suggest that you get your radiator flow tested, there was a problem in the past. You must have the correct thermostat, or suffer premature engine failure. Emission controls do not shift to normal until near 190 degrees....

Get it working correctly, or be unhappy.

Posted on Sep 06, 2010


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