So we were driving it today, everything was fine, then all the sudden it just lost power completely, while moving. We pulled over and tried to start it again and it will crank very slowly, but not start. We tried pushing it down a hill and starting it while it was moving, but that didn't work either. The battery is good, and we tried to jump start it just for kicks, but still wouldn't start. Someone told me it sounded like a bad coil pack, but he isn't a mechanic and I figured I would ask you guys before I went and paid for new coil packs. Any ideas??

 

why don't you pull a plug and check for spark