I have a 1999 Chevy Suburban 1500. Friday night it refused to start. Noticed the fuel pump wasn’t kicking on. So we replaced the filter and the pump. Primed it. Still nothing. Changed the cap and rotor since it was cracked and I have a life time warranty on them. We still can’t get it to turn over. We’ve tried starter fluid and it will start and run for about 45 seconds and then shut off.

 

Sounds like you need to have your fuel pressure regulator tested to me' I not could be injectors..