My trusty truck wont start. I will turn over but won't fire. I call pull start it and drive it all day and when I shut it oof and then try start it it will. But after sitting a few hours it won't start again. Is this a coil igniter problem? And how would I test for that, so that I'm sure what parts to get. I should qualify this by saying I'm not a mechanic but must fix this myself by nessesity. Any help would be greatly appreciated.