"s" in trouble!!! 1997.

[artfuldodger00]

good afternoon gentleman,
my problem came on suddenly and just after i went through a big dip . it refuses to start or run when warm . actually if you keep trying you can get the rpms up over 1500. it will rev. it also gets hot in less than normal time. no leaks internal or external. but i hear a ungodly knocking while its trying to start. also 1 code apparent missfire. any ideas and where can i get a book on themiller cycleengine? don