hi everyone. am totally new to this so any help would be greatley appreciated. my caddy has been sat in the garage for little under a year now, although i have started it on an almost regular basis it has not been driven. i went to start it the other day and it had a flat battery. so i pushed it out the garage and attempted to jump it. only to find there is no glow plug light on the dash and it wont fire. has anyone got any previous experience with this or got any clues to what it might be? thanx