Hey Scotty I have a 2007 lexus is250 with AT and 163K miles on it. It started popping out my radiator hoses one by one. First it was my bottom hose then the top hose connecting to the Radiator it broke it so I had to replace the Radaitor then it did it again with the one connecting to the thermostat why does it keep doing that? All the hoses had screw on clamps as well. Why is there so much pressure built up? I was told it could be the Head Gaskets but I want to be sure.. I did a Radiator flush as well and now my temperature is saying overheating? I took it to a mechanic and he said one of the hoses is cold and the other is hot meaning coolant is not circulating could it be a faulty thermostat? He said I should replace it first and see what it does... I hope you can help Thanks!!
If your hoses are original they could be getting pretty soft after 15 years. If head gasket is suspect test your coolant for exhaust gases.
https://www.youtube.com/watch?v=v0U8Iyf0kk4
Thermostat and radiator cap not opening properly.
change your pressure cap and get a head gasket tester.
