Remove radiator fan assembly 2006 sebring 2.7

5.7L Engines

1. Before servicing the vehicle, refer to the Precautions section.
2. Disconnect negative battery cable.
3. Drain the cooling system.
4. Disconnect negative battery cable.
5. Remove the upper radiator hose.
6. Disconnect cooling fan electrical connector.
7. Remove cooling fan mounting bolts.
8. Remove the radiator cooling fan assembly from vehicle.
9. Remove the radiator fan assembly.
10. Remove accessory drive belt.
11. Remove thermostat.
    NOTE The water pump mounting bolts are different lengths. Note the location of the water pump mounting bolts.
    

To install:

1. Install water pump and mounting bolts. Tighten mounting bolts to 20 ft. lbs. (28 Nm).
2. Make sure double ended bolt is in the proper location. Tighten double ended bolt to 20 ft. lbs. (28 Nm).
3. Position the radiator cooling fan assembly in vehicle.
4. Install cooling fan mounting bolts. Tighten to 50 inch lbs. (6 Nm)
5. Connect the cooling fan electrical connector.
6. Install the upper radiator hose.
7. Install thermostat.
8. Install the accessory drive belt.
9. Install the radiator fan assembly.
10. Connect negative battery cable.
11. Fill the cooling system.
12. Pressure test cooling system.

To remove and replace a radiator is a major mechanical job, requires some quite complete equipment and some mechancal knowledge.
Last time I had my radiator replaced, it took about 2 hours for a proffesional radiator mechanic . Are you sure your really want to do it yourself?

Better then any "explanation", watch these youtube videos:

How to change 2000 2003 Malibu Radiator Part 1 Removal

Radiator Cooling fan assembly repair install Chevy Impala

How to Replace Radiator How to Remove Your Radiator

How To Install Replace Engine Radiator Cooling Fan 2006 12 Chevy Impala

According to Mitchell On Demand, you need to remove the radiator first. Remove cooling fan assembly and then the radiator. The condenser just rests on the radiator mounts with 4 mounting pads. You lift the condenser off these to just replace the radiator leaving the condenser in place. Of course after removing the radiator, you disconnect the condenser lines and remove it at that time.

There are 2 8mm screws on top of assembly. Remove and pull out assembly. Disconnect wiring and screw out bulb. The screws are pretty long, so just keep screwing. It's really very easy.

Check this procedure for Sebring Coupe and Avenger (see Figure 1 - click for zoom)...
The radiator is the corrugated fin, downflow type, and is cooled by electric radiator fans. Service the cooling system with high quality ethylene glycol or other aluminum compatible antifreeze coolant.

1. Disconnect the negative battery cable.
2. Loosen the radiator drain plug and, using a large capacity container, drain the cooling system.
3. Remove the radiator cap.
4. If necessary for clearance, remove the bracket and plastic branch tube running from the air cleaner.
5. Disconnect the overflow tube and remove the coolant reserve tank.
6. Disconnect the upper radiator hose.
   

It is recommended that each clamp be matchmarked to the hose. Observe the marks and reinstall the clamps in exactly the same position when reinstalling the radiator.

1. Label and disengage the wiring to the thermosensors and the electric fan assemblies.
2. For vehicles with automatic transaxles, disconnect the oil cooler lines at the radiator. Plug the transaxle ports and the hose ends to contain the fluid and prevent contamination.
3. Remove the lower radiator hose.
4. Remove the bolts holding the upper mounting brackets to the support member. Remove the radiator, with the cooling fans as an assembly.

Fig. 1: Typical cooling system assembly-Sebring coupe and Avenger

To install:

1. If the fan and shroud assemblies were removed with the radiator, they must be reinstalled before installing the radiator. The mounting bolts for the fans should be tightened to 10 ft. lbs. (14 Nm). If the thermosensors were removed, they should be reinstalled and tightened to 10 ft. lbs. (14 Nm).
2. Reinstall the radiator, making certain all the mounts and bushings are correctly positioned. Tighten the mounting bolts to 10 ft. lbs. (14 Nm). Double check the drain plug to make sure it is closed.
3. Connect the oil cooler lines and attach the brackets.
4. Connect the wiring to the electrical components, making sure each is correctly located and securely fastened.
5. Connect the upper and lower radiator hoses and the overflow hose. Install the coolant reserve tank.
6. Install the branch tube and its bracket.
7. Fill the system with coolant.
8. Connect the negative battery cable, run the vehicle until the thermostat opens, fill the radiator completely and check the automatic transaxle fluid level, if equipped.
9. Allow the engine to warm up fully and check that the fans cycle on and off correctly. Watch the coolant level carefully in the overflow tank.
10. Once the vehicle has cooled, recheck the coolant level.

Hope this helps (remember to rate this answer).

did you check the relay?

Sounds like you need to replace the fan motor

1. Remove the front bumper cover
2. Remove the upper headlight housing mounting bolt and pushpin
3. Remove the lower headlight housing mounting bolts
4. Pull out the headlight housing assembly and disconnect the electrical connector.

Its pretty easy. Just raise the hood, see the two silver 8mm cap screws on top of the cross member that supports the radiator and fan assembly. Two screws on each side above the headlight housings. The outer screw is right next to the corner of the fender when the hood is raised. Remove the two screws, then the headlight assembly is loose. Just gently pull the headlight assembly forward enought to see the three lamp socket holders on the back side of the headlight assembly. From the outside corner to the inside are first, the parking turn signal, then the low beam lamp and finally the last, the high beam lamp. To remove the lamp socket, push the small plastic locking tab and turn the socket assemby counter clockwise about a half turn and remove the lamp. Now you can replace the lamp and install it back the same way you took it out. Don't touch the new lamp glass with your bare fingers. Oil from you skin will absorb into the glass causing the glass to turn dark and shorten the lamp life. 

• At the time of installation, please refer to the following items.
• Start the engine, and check for coolant and A/T fluid leaks.
• Check the A/T fluid level.

1. Drain engine coolant.
2. Canada: Disconnect relay block (for daytime running light system) from battery hold-down clamp.
3. Disconnect upper radiator hose from radiator.
4. Disconnect lower radiator hose from water inlet pipe.
5. Disconnect A/T oil cooler hoses from oil cooler pipes.
6. Disconnect No.1 and No.2 cooling fan connectors.
7. Disconnect No.1 Engine Coolant Temperature (ECT) switch wire connector.
   
   
8. Remove radiator and cooling fans assembly.

1. Remove the 2 bolts and 2 upper supports. Torque: 12.8 Nm (9 ft. lbs.)
2. Lift out the radiator, and remove the radiator and cooling fans assembly.
3. Remove the 2 lower supports.
   

1. Remove A/T Oil cooler hoses from radiator.
2. Remove lower radiator hose from radiator.
   
3. Remove No.1 ECT switch.
   
   
4. Remove No.1 cooling fan from radiator. Remove the 2 bolts and cooling fan. Torque: 5.0 Nm (44 inch lbs.)
5. Remove No.2 cooling fan from radiator. Remove the 3 bolts and cooling fan. Torque: 5.0 Nm (44 inch lbs.)

INSTALLATION
Installation is in the reverse order of removal.