guy with the truck

Hey guys im new here as of right now looking for answers to my own problems. I did have this problem last summer, Hard starting especially after long sits. on hot days (110*F in lake havasu) would be hard to start. had 70,000 miles on the truck. replaced the fuel filter and still had problems. well went to the local autozone ready to buy a fuel pump and the guy asked to see my truck. I said ok. popped the hood and started it, (took a while) he pulled off the vacuum line to the fuel pressure regulator on the fuel rail (driver's side 5.3L 1999) and it was shooting gas out it! the diaphram rotted. he had the same problem with his and didnt want to see someone else make the same mistake he did purchasing a whole new pump assembly. So im not sure if ythey are the same on the 2000-01-02 etc but check. start it see if gas comes out of if its wet replace it! it was $76.00 at autozone and a 1 yr warrenty. havent had a hard start yet!