For the last week, my 1999 Tahoe has been acting like its not getting any gas to the engine. It was intermittent at first so I thought I had just got bad gas. I put octane boost in and it didn't help. Its actually gotten worse and I barely made it home the other day. I replaced the fuel filter and added some injector cleaner but its still happening. Does anyone have any idea what is causing this so I can hopefully get it fixed ASAP.

 

Have you tested to see if you get proper fuel pressure to the rails?

It sounds like you may have a dying fuel pump, but test first.