Check the fuel pressure! My wifes bravada would start and was running real bad, then it would start and shut off, now it wont even start. I am getting 40PSI but spec is 60 to 66psi. I don't know what spec is on your truck but I would assume it's the same...oh and guess what people? I can hear the pump running when I turn the key on...that don't tell you shit just because you hear it running does not mean it's good. Now if ya don't hear it running I would tend to believe it's bad.
PS: If ya want to scrap it I will take it off your hands. Also go to autozone and they have a nice fuel pressure test kit that has a book with pressure specs for every car made this is their loan a tool program and it is free to use, you should have a schrader valve right behind the TBI unit just follow the fuel line you will see it.
Last edited by Disturban; August 11th, 2009 at 05:55 PM.