Hello
I have a 2002 blazer. When I start it after if has been siting for longer than around 5 minutes the motor turns over more then it should. It also happens randomly as well. But when I start it cold it turns over once and fires right up. I'm not sure what could be causing that. This started right after my battery was dead one day. I'm not the best at describing things when it comes to cars so if you need more info let me know. Thanks for your help.

 

either spark or fuel issue I would go with spark,plugs wires rotor and distributor, but use A/C DELCO parts for these items as they are finicky do you have any engine codes ? if you do post them first