Hyundai Repair: 2000 Tiburon New Radiator but still Overheating, radiator hoses, coolant level

Question
My Tiburon has been overheating for quite some time. I have changed the water pump 4 times as a result and just had a new radiator placed. However, my vehicle cannot be driven more than 20 minutes because it will start overheating again.  I have had this car looked at a numerous times but nothing seems to be working.

Can you help me?  

Answer
You'll need to determine whether the cause is low coolant, lack of coolant flow, inoperative radiator fans, or some other issue.

First, check the coolant level.  If it's low, check for leaks.  Look from above and below the engine.  If you have any leaks, repair them.

Second, you'll need to check the operation of the system.  Once the thermostat opens, you should have coolant flow.  Remove the radiator cap and start the car.  By the time the radiator fan cycles, you should see the coolant flowing in the radiator.  If it's difficult to see through the filler neck whether the coolant is flowing, you can also check the radiator hoses and air coming off the radiator.  If the coolant is flowing, the fan will blow hot air off the radiator and both radiator hoses will be hot.  If the coolant is not flowing, the fan will blow cold air off the radiator and you'll likely have only one hot radiator hose.  If you find that the coolant does not flow, suspect the thermostat.

If your temperature gauge reaches red prior to the cooling fan coming on, you'll need to diagnose why the cooling fan isn't coming on.

If your coolant is full and flows normally, and the cooling fan cycles normally, but the vehicle still overheats, then you probably have a head gasket issue or a cracked block or cylinder head.