>> A << Thermostat Installation
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Make absolutely sure that no oil adheres to the rubber ring of the thermostat. Also be careful not to fold over or scratch the rubber ring when inserting.
Install the thermostat so that the jiggle valve is facing straight up, while being careful not to fold over or scratch the rubber ring.