As always, I've read a lot of posts in an attempt to diagnose an issue I have going on. I wanted to lay out what I'm thinking based on the posts I've read to see if you all disagree with what I'm doing:
A few days ago I drove a few miles down the road before a fairly large amount of coolant fell out from the engine (my temp sensor never showed hot). I started to dig into the engine to replace head gaskets when I noticed a hole in one of my coolant hoses. Instead of going deeper to replace headgaskets, I replace the hose and put the engine back together. I've driven it a couple of days watching it closely but it was only yesterday that I noticed what seems to be significant pressure on my hoses. My expansion tank cap appears to be broken somewhat so I'm replacing that. But more concerning, if my engine is cold and I turn the car on while the bleeder hose is disconnected, coolant will immediately come out of the bleeder port. This makes me think that there's pressure on the engine before my thermostat opens up (i.e. head gasket failure). I don't see milky oil, feel water coming out of my exhaust, or notice large amounts of small air bubbles coming out of my expansion tank. However, if you run the engine with the expansion tank cap off, coolant spills out of the overflow port.I'm posting to see if you all are in agreement with my assessment before I dig into the engine again or if you'd recommend a different course. Thanks for the response.