Fuel tank 40 gal. on 1999 Ford F-250 Super Duty

The Elect. fuel pump connector on the top access door does not have pins or tabs to remove it. How does it come apart?
I do not have fuel being pumped, bad pump or voltage to it.
Brad bradd67@comcast.net

Asked by for the 1999 Ford F-250 Super Duty
1 answer
you will need to go under the truck and find the end of the harness to disconnect.