Engine Thermostat: Notes
WARNING: This page is about a different car, the 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
The 3.0L and 3.3/3.8L engine thermostats are in water boxes, formed in the timing belt end of the intake manifold. These thermostat have air bleed valves, located in thermostat flange.