Hey Guys, rookie/newby duramax Guy. been looking at a 2002 Duramax club cab 4x4. Guy is asking 5k firm for it....but a year ago he and his dad were fishing ,pulled up beside a friend ,shut the truck down to talk and it hasn't started again? i'm looking to buy a duramax and this sounds like something that could be a good deal(if I can figure out whats wrong) any advice from folks that know their disels will be appreciated. He says they have spent a lot of money to fix and gave up. He said they think it could be a security issue since the truck was turned off while it was running in 
