fuel problem. maybe?

[njgoonies]

ok. sothe other morning i go out and turn the key on my 03 yukon and the truck won't start. Actually it starts but stallsout almost immediatly. i can hear the pump prime when turning the key. i started with what i thought was going to be the easiest change, the fuel filter, but to my surprise it turned out to be a little harder. however, after getting the right filter, flex fuel that i don"t have, and the right tool, i got the new filter installed. still no luck. does anybody have any pointers toget me going in the right direction. any help would be great.

 

[ChazMan]

To find the right culprit and not to waste time/$ on wrong parts, you really need to hook up ODB reader to see what error code(s) are stored in the ECU. See if you can borrow one.

 

[blueflamed03]

fuel pump loosing prime? Not enough fuel pressure at the injectors?

 

[sanddperformance]

I would also check and see if the throttle plate is opening

 

[njgoonies]

Ok... Here's the verdict. Turns out it was just a bad battery which had been replaced only a year ago. thank god for the warrenty. talk about a bizarre solution to a bizarre problem. thanks again to all for the help.