fuel pump problems

[vladj]

so i have a 1987 ford ranger 4x4 with 2 gas tanks. i removed the rear one because it started leaking. but now my truck wont start. the fuel pump wont come on. i tried hooking up a battery to the fuel pump and it works fine. the fuel tank select is set to the front fuel tank. i also changed the fuel pump relay and nothing. if i pour some fuel into the intake vacume line it starts and runs for a few seconds. so i know the ignition is fine. any ideas?

thanks;

vlad

 

[dave2575]

Check your grounds.

 

[mendozamm]

what about your inertia switch. Mines below the dash on the passenger side.

 

[vladj]

ended up being the power cable to the alarm. thanks for the help