I have a 2008 Town and Country Van, 3.3 L flex fuel.
Cel on, codes P0128 and P2181.
Has good heat but does take awhile to get hot.
Temperature gauge on dash barely comes off of the Cold mark,maybe an 1/8 of an inch off C
Replaced the Thermostat, still the same gauge reading.
Van starts and runs fine, has good heat

I'm thinking its a bad Engine coolant Temperature sensor.

Aftermarket sensors are cheap but not sure if i should go with that or the $38.00 Oem one.
or is this something other than that
any help is appreciated

Thanks
Joe