Yesterday I went out to start my 2001 Ford F150 and it would crank but not start. I figure the fuel pump is done so I spray some starting fluid into it to confirm this and it starts right up and runs a second and dies. So I hit the internet look at fuel pumps when I run across a thread about something to do with the remote locks/theft devices. I push the panic button on the key fob twice and it starts right up. Charge up the battery last night and go out again today and it starts right up but is running sluggish then clears. I run some errands with out any problems and then drive to the post office and go in to get a letter. Come out and it won't start again but it sounds a little different this time like it wants to but just can't. I sit for a minute hit the panic button on the fob and still nothing. I hit the unlock once and it starts right up.

So with all that it hasn't thrown a code, the theft light is not blinking rapidly, and the check engine light is not on. I thought maybe fuel filter but I have never heard of one acting the way it does when it's plugged. So something is shutting off the fuel pump but what?