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If the thermostat is stuck closed there will also be no flow. This is way more likely than a water pump and would first on my list when diagnosing a no flow overheating issue.
I'm pretty sure the 06 charger has a 3.5, 5.7, or a 6.1 liter as an option. Are you sure you have a 2.7?
On the six cylinder the thermostat is located behind the housing bolted to the block that the lower hose is connected to.
On the tranny side for 3.4l. Follow the upper rad hose to the thermostat housing. You have 2 bolts to remove & the upper rad hose clamp.remove the air intake duct.Partially drain coolant.remove exhaust crossover pipe. Removebolts & thermostat housing. Next remove the thermostat. Clean both surfaces. Install in reverse order. Onthe 3.8l, it isagain at the end of the upper hose behind the engine mount. Good luck!
If it's where the upper rad hose connects, it's likely the thermostat housing. Some vehicles are designed with a plastic filler neck that houses the Thermostat, upper rad hose, and filler neck in one unit.
You have replaced the upper rad hose. Was this done because of a leak? Was it replaced because overheating was occuring? If overheating is a problem you may have to look at some other things.1 Cooling fan 2 Thermostat 3 Head gasket
remove fan and fan shroud. caution, left hand threads on the fan. follow top rad hose to the thermostat housing which is bolted to the cyl. head. remove thermostat housing and replace thermostat and gasket. note the arrow on the thermostat, it should point up. reinstall thermostat housing. fill coolant reservoir, but do not close the cap. start the vehicle and have an assistant run the engine at 3 000 rpm while you top up coolant.have the heater set on hottest. make sure the coolant is circulating into the reservoir. when you have good circulation and the coolant level is not dropping anymore you can close the cap. make sure you have good heat coming out of the vents. if there is no heat, you have an air lock. immediately shut the car off to prevent overheating. make sure to check coolant level once the engine is completely cold.
if you have a rad cap open it and check your coolant level. if it is low fill the rad and leave cap off while you then put the recovery resorvoir at the proper cold level. Move your way along to the thermostat and look for a screw and nut at the top of the housing. If there is one then this is the highest point of the coolant in your vehicle and you will bleed it by opening this hole and running your engine until only coolant flows from the exposed hole. Do not remove the screw just turn it until the hole in the side is revealed. I basically almost remove the screw (till it kind of wobbles) and then turn it back in til it stable (like 1 turn). Be sure that the coolant is flowing without bubbles(air) and not just kinda trickling with short pauses.
If the housing for the thernostat is lower than the rad cap then you bleed it through the rad. Wait for the thernostat to open and the level to go down and then refill it and watch to see no more bubbles (air) escaping. Once the vehicle gets hot you may have to wait for the engine to cool(ie) turn it off for a while and redo it. Also if you are using the thermostat bleed hole be sure to put the rad cap back on before you start the bleed process and keep your eye on the coolant resorvoir adding coolant as needed so you dont **** more air into the engine.