Won't start all the way 2001 mountaineer sounds like it wants to but won't let me give it a lil gas to fully start??? Please help ! ??Mom of 3??

It's sounds like a fuel delivery problem ! Can't be anti-theft system problem , ford , mercury , Lincoln's don't let the engine crank ! Possible fuel pump ! Spray some carburetor cleaner into the engine intake , throttle plate ! if it starts you have a fuel system problem . There is a relay for the fuel pump in the under hood fuse / relay center an a fuse #9 20Amp , there is also the fuel shut off switch located in the front passenger kick panel ! If you knew how to do it you could check the fuel pump electrical circuit from the relay socket ! four pin's on the bottom of the relay an four holes in the relay center for those pin's ! Two have battery voltage one ground - through the fuel pump , last one open -this the control circuit from the engine computer .

It would be best to take it to the shop for diagnosis.