trying to remove engine wiring harness, but having trouble...

[Sycho15]

OK, where all the wires eventually come out of the firewall in that really huge block... how do I remove it? Otherwise the wiring harness is mostly intact...

[Jeep Craze]

There is a bolt in the middle of that said block under the hood on the firewall. I think If I remeber right it was a 3/8 head, Possibly a 7/16 head. Craig

[Crazy_Jeepman]

3/8", undo it, unplug it all is good!!