Hey guys am new here..
I have a fx4 5.4 2004 and sometimes it has a loss of power on the first and second shift...?The 3 mechanics just couldnt fix it.. they change the speed sensor.. the throttle body.. turbine speed sensor.. they reset the computer and its still the same.. like I said.. it just made it sometimes.. on freeway runs great.. feels like no power for a few seconds and then comes again.. Help! Dont know what else to do!