New to the board and hope I can give some input. For now I need a question answered. I noticed small (quarter size) drops of coolant on my garage floor. traced it to freeze plug on the far right...right under the exaust manifold! Anybody know a trick for getting it out and the new one IN without takeing off manifolds?? Also, hear water noises after shut off and slight hiss at radiator cap, no need to ever add coolant..odd i know. could leaking cap allow enough pressure to build to pop freeze plug?? In dallas so not too cold either. thanks in advance