7.3 IDI cracking the injector lines to test injectors

[maxhauler]

the black rubber grommet/fitting with the wires coming out horizontally on the top of the filter head leaks on my 7.3 too. i did not yet research the layout inside the filter head so I was not sure what that was. fuel heater you say?

[eatont9999]

@maxhauler

Yes, it is the fuel heater. I replaced the O-rings in mine but it still leaked, so I used some RTV on the outside to seal it and it is disconnected now. I don't really need it much in TX.