THERE IS OIL IN MY RADIATOR AND OVERFLOW

Not a huge problem as long as you DO NOT run the car. You will find a valve or petcock at the bottom of radiator open it and drain all fluid from radiator - then using a flush kit from Walmart follow package directions and do a full flush of cooling system. I would do it twice, then refill with appropriate fluids should be good to go for under 30 bucks and an hour or so of your time

That stuff is the long life coolant breaking down, flush the system and install the newer more stable coolant.

look close on the top of the radiator they crack there. and the other thing you can do is put a piece of card board under the front and run the car and see where it leaks

sounds like a head gasket in the first stages

as far as the rust, that most likely has been in the cooling system for a long time and repeated flushing will help but rarely will it completely rid the problem.

Do you have heat or is the heater blowing cold? Could be a bad thermostat but it could be more serious such as extreme cylinder head pressure. hard to say without seeing the vehicle. Try to see if the coolant is circulating with the radiator cap off. If the thermostat is open you should see something.

Check this procedure to REMOVAL & INSTALLATION
(1.8L and 1.9L Engines)

CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

1. Disconnect the negative battery cable.
2. Place fender covers on the aprons.
3. Raise and safely support the vehicle. Drain the cooling system.
4. Remove the right and left-hand front splash shields.
5. Disconnect the lower radiator hose from the radiator.
6. If equipped with an automatic transaxle, disconnect the lower oil cooler line from the radiator. Remove the oil cooler line brackets from the bottom of the radiator.
7. Lower the vehicle.
8. If equipped with an automatic transaxle and air conditioning, remove the seal located between the radiator and the fan shroud.
9. If equipped with an automatic transaxle, remove the upper oil cooler line from the radiator.
10. If equipped with the 1.8L engine, remove the resonance duct from the radiator mounts.
11. Unplug the cooling fan motor electrical connector and the cooling fan thermoswitch electrical connector.
12. If necessary, remove the cooling fan thermoswitch for clearance.
13. Remove the three fan shroud attaching bolts and remove the shroud assembly by pulling it straight up.
14. On some 1.9L engines equipped with A/C, remove the upper radiator air deflector from the radiator and set it aside.
15. Remove the upper radiator hose and the two upper radiator mounts.
16. If equipped, remove the fluid cooler tube bracket bolts and coolant overflow hose from the radiator.
17. Remove the radiator from the engine compartment by lifting it straight up.

2.0L Engine
(1997 MODELS)

1. Remove the fan motor, blade and shroud assembly.
2. Raise the car and support it with safety stands.
3. Unfasten the left-hand splash shield bolts and remove the shield.

CAUTION Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

1. Drain the cooling system into a suitable container.
2. Disconnect the lower radiator hose and if equipped with an automatic transaxle, the lower oil cooler outlet tube.
3. If equipped with an automatic transaxle, Unfasten the oil cooler tube bracket bolts.
4. Lower the car and disconnect the upper radiator hose.
5. Remove the radiator cap and disconnect the radiator overflow hose.
6. If equipped with an automatic transaxle, disconnect the upper oil cooler outlet tube.
7. Unfasten the four radiator bracket bolts and remove the radiator from the engine compartment.

To install:

1. Install the radiator and tighten the bracket bolts.
2. If equipped with an automatic transaxle, connect the upper oil cooler outlet tube.
3. Install the radiator cap and connect the radiator overflow hose.
4. Connect the upper radiator hose, then raise the car and support it with safety stands.
5. If equipped with an automatic transaxle, tighten the oil cooler tube bracket bolts.
6. Connect the lower radiator hose and if equipped with an automatic transaxle, the lower oil cooler outlet tube.
7. Fill the cooling system with the specified amount and mixture of coolant.
8. Install the splash shield and tighten the bolts.
9. Lower the car and install the shroud, blade and fan motor assembly.
10. Start the car and check for coolant leaks.

Hope helps (remember to rate this asnwer).

Chrysler Caravan/Voyager/Town and Country 1996-1999
Radiator - REMOVAL & INSTALLATION



Fig. 1: Before removing the hood latch, mark it's location on the crossmember with a paint marker or other tool

1. Disconnect the negative battery cable.
   

CAUTION Do not remove the radiator cap or drain with the cooling system hot and under pressure or serious personal injury can occur from hot pressurized coolant.

1. Place a drain pan under the radiator drain. Open the radiator drain plug and allow the coolant to drain.
2. Remove the air intake resonator from the air cleaner assembly.
3. Remove the Coolant Recovery System (CRS) overflow tank filler neck hose.
4. Disconnect the cooling fan electrical connector located on the left side of the cooling fan module.
5. Remove the CRS overflow tank mounting screw from the upper radiator crossmember.
6. Remove the upper radiator-to-crossmember mounting screws.
7. If equipped, disconnect the engine block heater wiring connector.
8. Remove the upper radiator crossmember.

Fig. 4: ... and the upper radiator-to-crossmember bolts, then ...



Fig. 5: ... unbolt the crossmember ...



Fig. 6: ... and lift it from the front of the vehicle

1. Remove the entire air cleaner assembly.
2. Disconnect and plug the automatic transaxle oil cooler lines from the radiator.
3. Disconnect the upper and lower radiator hoses from the radiator. Remove the lower radiator hose clip from the cooling fan module.
4. Remove the A/C condenser mounting fasteners and separate the A/C condenser from the radiator. Be sure the condenser is supported in position.
5. Remove the A/C filter/drier mounting bracket, 2 mounting bolts to the cooling fan module and 2 mounting nuts to the filter/drier. Remove the mounting bracket.
6. Carefully lift the radiator out of the engine compartment. Be careful not to damage the radiator cooling fins or water tubes during removal.
   

To install:

1. Be sure the air seals are properly positioned before installation of the radiator. Lower the radiator into position and seat the radiator with the rubber isolators into the mounting holes provided.
2. Install the A/C filter/drier and mounting bracket onto the cooling fan module. Install the bracket mounting fasteners.
   

1. Install the A/C condenser to the radiator.
2. Unplug and connect the transaxle oil cooler lines to the radiator.
3. Connect the upper and lower radiator hoses to the radiator.
4. Connect the CRS overflow tank filler neck hose to the radiator.
5. Reconnect the cooling fan motor electrical connector.
6. Install the entire air cleaner assembly.
7. Install the upper radiator crossmember.
8. Install the upper radiator mounting screws and torque to 105 inch lbs. (12 Nm).
9. Reconnect the engine block heater electrical connector, if equipped.
10. Install the CRS overflow tank mounting screw to the upper radiator crossmember. Torque the screw to 18 inch lbs. (2 Nm).

Fig. 11: Unbolt the lower radiator mounting brackets



Fig. 12: Once all of the components are removed or set aside, the radiator can be removed from the vehicle

1. Install the air intake resonator.
2. Refill the cooling system with a 50 / 50 mixture of clean, fresh ethylene glycol antifreeze and water to the proper level.
3. Reconnect the negative battery cable.
4. Start the engine and run until it reaches normal operating temperature, then check the coolant level and the automatic transmission fluid level. Add fluids, if necessary.

Hope help with this, remember comment and rated this.

Caravan, Grand Voyager, Town and Country, Voyager, 2000-2004
Radiator - Removal & Installation

1. Disconnect the negative battery cable.
   CAUTION Do not remove the radiator cap or drain with the cooling system hot and under pressure or serious personal injury can occur from hot pressurized coolant.
2. Place a drain pan under the radiator drain. Open the radiator drain plug and allow the coolant to drain.
3. Remove the air intake resonator from the air cleaner assembly.
   
   
   Fig. Before removing the hood latch, mark its location on the crossmember with a paint marker or other tool
   
   
   
   Fig. Once the hood latch is matchmarked, remove it from the crossmember (without disconnecting the cable) and set it aside
   
4. Remove the Coolant Recovery System (CRS) overflow tank filler neck hose.
5. Disconnect the cooling fan electrical connector located on the left side of the cooling fan module.
6. Remove the CRS overflow tank mounting screw from the upper radiator crossmember.
7. Remove the upper radiator-to-crossmember mounting screws.
8. If equipped, disconnect the engine block heater wiring connector.
9. Remove the upper radiator crossmember.
   
   
   Fig. Remove the grill extension...
   
   
   
   
   Fig. ...and the upper radiator-to-crossmember bolts, then . . .
   
   
   
   Fig. ...unbolt the crossmember . . .
   
   
   
   Fig. ...and lift it from the front of the vehicle
   
10. Remove the entire air cleaner assembly.
11. Disconnect and plug the automatic transaxle oil cooler lines from the radiator.
12. Disconnect the upper and lower radiator hoses from the radiator. Remove the lower radiator hose clip from the cooling fan module.
13. Remove the A/C condenser mounting fasteners and separate the A/C condenser from the radiator. Be sure the condenser is supported in position.
14. Remove the A/C filter/drier mounting bracket, 2 mounting bolts to the cooling fan module and 2 mounting nuts to the filter/drier. Remove the mounting bracket.
15. Carefully lift the radiator out of the engine compartment. Be careful not to damage the radiator cooling fins or water tubes during removal.

continue...

1. Disconnect the radiator fan motor connector. 2. Set the temperature control switch to the hot position. 3. Loosen the radiator drain plug to drain coolant. 4. Disconnect the upper and lower hose and overflow tube. 5. For vehicles with automatic transmission, disconnect the oil cooler hoses from the automatic transmission. Plug the ends of the oil cooler hoses and the automatic transmission fittings to prevent transmission fluid from spilling out and foreign material from entering. 6. Remove the radiator mounting bolts. 7. Remove the radiator and the fan motor together. 8. Remove the fan motor from the radiator. findme(''); findme(''); findme('');

either a leaky head gasket or someone put oil in the overflow, it happens, clean it out drain the coolant from the entire system and refill with new long life antifreeze, also add a can of good radiator sealer.