i have 2001 chevy blazer V6 4x4 it will not start battery good it was running fine the day before when u try turn engin over it will backfire but that it any help would be appreciate ty

 

Need more info! Have you done anything to it recently? It kind of sounds like your timing is off.

 

*Moving to 2nd Gen Tech*

I agree, we need a little more to go on... Does the dash light up like it is supposed to? Any lingering dash lights that may indicate a problem with the ignition switch (hint- check the ignition switch link in my signature)?