This Blazer ran perfect before I parked it. It has sat and has not been started for probably 3 months. When I went to start it the battery was completely dead. I put the charger on it, have gotten the Blazer to turn over and start but it will not stay running. It spits and sputters like it has jumped time. Sometimes it is backfiring out of the intake too. I honestly do not know where to start because it was running so good before. Any ideas???

 

Well lets start with the year of the truck?

 

2000 V6 Auto 4WD