I have been having this problem ongoing now for a couple of months. When I get in and try to start my blazer it sounds like as if I'm trying to start it while it is already running. It grinds really bad. I'm sure everyone has done this by accident a time or two, however my blazer is NOT running. It doesn't happen all the time. Maybe once out of every 6-8 starts. ????? I haven't got a clue. I'm not big on working on cars, but I would like to learn more. I bought a Chilton book so if someone can point me in the right direction, give me some advice, maybe I can fix it before it becomes a real problem. Thanks!