I have a Ford F-250 5.8L 1994 I am helping a neighbor it will not start.It
has no spark he jumped a deisel 24 volt system and shortly after it
died.We have replaced the ECM,Ignition coil,the pick-up coil in the
dist.and the computer still NO SPARK..HELP The fuel pump seems to be
operating as we can hear the pump actuate and there is pressure at the
fuel rail.the repair manual says if there is voltage at the IGN coil with
the key on and still won't start to replace the IGN switch? only part we
have not changed??