I have a 1999 V.6 Vortec Engine I Had No Problems with It All On Friday Or Sautrday Morning After I Put Gas Into It And Drove To My Destination And Shut It Off It Will Not Stay On.... The Engine Cuts On For Maybe 2 Secs Then Cuts Right Back Off... I Don't Think Its My Fuel Pump Cause I Hear It Turning On When You Turn The Key... Please Help I'm In College. And Need This Car For School To Get Back And. Forth To School

 

Start with the basics: fuel,spark and air. To properly diagnose fuel problems you need to test the fuel pressure and do a leak down test. Have you checked the battery terminals or had the battery tested? Did it throw any codes? Also look for any vaccum leaks while you are at it.

 

i checked all that i checked the fuel pump and its reading 50 psi thru 52psi is that the problem?

 

That's marginal.. depending on how you checked it
Key on/Engine off.. THEN how long it stays above 50 psi. You can stop counting at 10 minutes.

Where did you fill it up? Describe the station and type of retail outlet.

Change your fuel filter first.

 

I Cranked It Up And It Read That It Goes Between 50 PSI Between 53 .... And I Filled Up At Kroger's Gas Station

 

That's nice to know but doesnt tell us much. Like I said,
Key on/Engine off.. THEN how long it stays above 50 psi. You can stop counting at 10 minutes.

Well, that's not the worst place you could buy it but not the best either.

Like I said, change the fuel filter FIRST.
I test the old one for for blockage by draining the gas out of the engine side, then seeing if I can easily blow thru it from the tank side. Unscientific and yucky but tells you something, if your cheeks puff while doing that.
If you see anything nasty coming out, that's bad fuel.

 

i see your location is ohio so am i is there anyway you could come out and look at the blazer

And also could a bad fuel pressure regulator cause this problem? thank you for all the input i really appreciate it

 

Lol... seriously!
" hey. mate, Tony from London, here. Me best mate Nigel Martin moved to Ohio a few years ago, do you know him?"

You are gonna have to be damn close. Pm me where exactly you live.
What do you think I have been posting the suggestions about!!!!!
We can talk about it three days, three weeks, 3 months... and nothing's gonna get solved till you do what I suggested.

 

^^^ listen to 'fog. It may very well be a bad filter. Its the best place to start.

 

I check the gas pressure with the key on and it went up to 55 then decreases all the way to 0 it stays at 55 for about 3 sec's then it goes down to 0 but I changed the fuel pressure regulator and that didn't work what else so I do? The fuel filter?