Coolant leak from upper radiator hose, 5sfe Options

[ILoveMySilly97]

So I've been having issues with my cooling system for a long while now. It just never bothered me til now. I took a look at it after my bro drove it back from school. Which was about 20 min away most of it was on the highway. I popped open the hood just to look around and check my fluid levels since the engine is warm. I noticed it started leaking AGAIN at the upper radiator hose. It's leaking through the inner threads of the radiator hose. Now the side that connects to the engine. The color of the coolant that was leaking was brownish? I'm thinking it might be rust. The last cooling system flush I did was almost a year ago. At that time I had replaced thermostat, thermostat housing, top and bottom radiator hose, both ECT sensors, radiator cap, radiator and the fan temp sensor. My thermostat is designed to open at 175 degrees Fahrenheit. I know it opens because when I touched my bottom radiator hose it was warm but my top radiator hose was hot. I'm just wandering why it'll leak in the inner thread? Only possible answer is possible over pressure? Blockage in the engine somewhere? Any suggestions besides doing another cooling system flush?

[ILoveMySilly97]

Ok. Back to the drawing board. My car took a **** and it is now leaking coolant. Worse than before. I'm guessing it's overpressure since it's the upper rad hose, by pass hose, and the heater hose that's leaking. They're all connected to the engine coolant inlet housing so my best guess would be it's overpressure somewhere from the thermostat to the rad cap. Thing is the rad cap is still in good condition and it's rated at 0.9. The thermostat opens and closes because there's water flow when the fan kicks on. Also I did a engine coolant flush and the reverse flow flush last summer. So......what else is there to test? My guess is to test for any exhaust fumes in my coolant? For a possible bad head gasket?