There are two. Both are under the plastic housing on the driver side end of the cylinder head.
It is under the housing where the lower radiator hose hooks to engine.
The four cylinder has two thermostats in the housing where the upper radiator hose attaches to the engine. The v6 thermostat is under the housing where the upper radiator hose attaches to the engine also.
The thermostats on a Dodge Avenger 2. 4L are mounted with the plastic water housing on the driver side end of the cylinder head.
Changing a thermostat on a 2008 Dodge Avenger can be difficult because there area two thermostats. One is located under the intake manifold inside a housing unit, and the second is at the end of the radiator hose.
On the valve cover
under the housing where the lower radiator hose hooks to the engine
195
It is under the housing where the lower radiator hose hooks the the engine.
Yes
If you follow the bottom hose on your radiator it will lead you to it. You will have to remove 3 bolts on the thermostat housing to get to it but it should only take you about 20 minutes to change it out.
It bolts to the same bolts as the thermostat housing.
replace it. when they go bad you can't fix them.