2002 Chevy Blazer car won't start

Ive seen this problem a number of times. Unfortunately it usually turns out to be the fuel pump and or the connector at the fuel pump. I strongly recommend using the factory pump in these vehicles. One way to tell if this is your problem, when vehicle wont start, spray starter fluid into intake. This usually gives it enough fuel to start and stay running. I have walked several people through this scenerio with recently replaced fuel pumps and it has always come back to the fuel pump. I hope this helps. Feedback greatly appreciated.