1997 Chevy Blazer no start

Hello, what were the fuel pressure specs, did you use a gage? Do you have the spider fuel system?

Just for kicks, I have bench, no load tested pumps that I knew were faulty. I layed it on the bench, hooked up battery voltage--ground. I was surprised how much gas that little pump held, it throwed gas all over me and everything else, I only did that once. On that particular pump, the brushes were wore down to the nub. I can't tell you the pump is faulty without testing. One you build pressure by cycling the key, you might block or clamp the supply line somewhere, see if the pressure holds?

I thought that was a new regulator? You can block or clamp the return line, after you cycle the key. You shouldn't deadhead it more than a few seconds.