Help My 4.2 liter v6 1998 ford f-150 2wd is flooding, running too rich. It wont idle. What is causing it and what can i DO.

Check fuel pressure to see if regulator is stuck. if it is OK, look to injector wiring or the injector. Also check to see the coolant temp is operation properly.(not the dash gauge, the one that tells PCM what engine coolant is)

Might want to try cleaning the IAC vavle and port also.