yes we know that from runing out of chakra... u DONT DIE, so if the thing is that kakashi has no chakra left, its just that, besides the fact that he's unconsious so, i definitelly agree with you, naruto cant sense the chakra cuz there is no chakra to sense, and he'll recover, also i agree with that other post, yep, it would loose a lot of fans if kakashi dies, beter make him hokage, he has the mind, habilities and battle experience required for the job, besides he was in anbu, so he knows the undergrownd ways of konoha 2