Coolant leak at the top radiator hose

The plastic radiator tank that the hose nipple is part of can be replaced by any radiator repair shot for about $75-100

This happened to my daughters sorento also. I went to the hardware store and purchased a brass hose barb with 10 mm threads and 1/2 inch barb use a tap and the correct drill bit. you may need to lift the radiator up a little to drill the hole bigger be careful you don't drill to far and go slow the plastic is soft and will pull the drill in so take your time. next use the tap and cut the threads, clean all plastic shavings, use some gasket sealer on the threads and insert be careful you don't over tighten the plastic is a little thinner let it set so the sealant can harden up. re-install everything and add coolant and test it out worked great. it was a poor engineering design....

The first answer is correct, however you can fix it yourself (not to hard of a job either). At first, it was a real challenge but after looking at it for awhile and analyzing the process; this is what I came up with and it was a HUGE success. First and foremost-- do not use a plastic epoxy -- it did not work for me and I dumped a lot of coolant out of my car! So in a nut shell, I went to O'Reilly and purchased some vacuum connectors (part # 47101 -- different sizes-- about $5.00). I then took out the large connector and a medium size connector and combined them together. On the medium size side, I took out my dremel tool and sanded it down to the hole size on the radiator (not completely down, but to where it was tightly snug inside of the hole). The way I inserted the connector into the radiator hole was a challenge? There is no absolutely way of using a hammer, unless you take the radiator out of the car (and I did not do that!!!). First, take off the plastic piece that is covering the top of the radiator (located on the front of the car). I then inserted the large/ med size vacuum connector in the Radiator's hole. When I couldn't push it in any longer; I used a C-clamp to assist me into pushing it in some more (by bracing it up on the front side of the radiator). I slowly tighten the c-clamp to where I felt that the new nipple was snuggly tight inside of the hole and would do the job successfully. The only bad thing was, I had to use duck tape on the larger side of the connector so that the hose would tightly fit on the larger side of the connector. I then took the car for about a 10 to 15 min drive to see if there was any leakage and there wasn't. Other than that-- it was a huge success and I didn't have to pay a hefty bill for what the shops would have done to somewhat that I did -- hope this helps.