ok well i was in the woods with my beater and baked into a tree kinda hard and now my blazer aint getting fuel well i dont even here the pump kicking on and now my check engine light aint on??????????? well i was wondering do blazers have a fuel cutoff switch incase of a accident thanks ryan p.s. my blazer is a 1989 with the 4.3 throttle body injection

 

Check the ECM fuse...ALso check the connections at the ECM.

 

One thing you might check is the ground wire from the fuel pump to the top part of your bumber. Might have snapped when that tree got in your way. Its a pain to get at. The only way to see it is from underneth. Comes straight off the tank in the center top. Highly recomend thin ratchet wrench. Cant remember the size.

I think it grounds you plate light as well, so if that is out its probably the problem.

Good luck.