About a mth ago one of my radiator hoses blew off at WOT??? After some other issuses I finally have her up and running. My question is I don't remember the radiator hoses being sooo firm at full operating temps. When cool I can squishy any hose like normal but when hot they are hella solid. If I relieve the pressure on my expansion tank(moroso) they return back to squishy obviously. No fluid will come out and the level looks good just don't remember it being so solid??