wow... first off you want to hear your pump kick on. if you don't hear it you have a problem. secondly put a fuel pressure gauge on the schrader valve on your fuel rail and turn the key. you should see fuel pressure. not sure about the v6 but the v8 is 41-47psi. if you aren't getting good pressure it can be your fuel filter which is cheap enough and easy enough you should just go a head and replace anyways or ur fuel pump. if you are going to replace your fuel pump don't buy a stock one. just go buy a walburo pump. it is only about 100 bucks.

and yes you can cut a hole in the rear deck above your pump and replace the pump. it does make it a lot easier.