My 01 blazer won't crank I replaced the fuel pump about a week ago and it ran fine then today it wouldn't crank. Fuel pump still kicks on but I believe it's not getting fuel. Maybe fuel filter?

 

fuel issue should not cause a no crank but rather a crank no start.

when the key is turned to start...does the starter relay click...have someone put there hand on the relay while you turn the key.

any theft lights on?