my friend has a 99 f350 7.3 and the other day he was going home and truck just cut off after checking fuses fuse #30 was blown. he replaced it and truck started up and ran fine for a day. he tried to start it yesterday and again #30 was blown he replaced it and as soon as he turned key on it blew again. after reading post on sn:we started checking things. no wait to start light we disconnected fuel element, checked wire, we also disconnected power wire going to gp relay and still every time we turn key on it blows the fuse. he is going to check the wire again today but is there anything else we should check.