Diesel Engine problems of the 1996 Chevrolet C/k Pickups

I have had this vehicle for two years now and love the power and smooth ride I get from it. The truck is a 1996 chevy k2500 with a 6. 5l diesel engine. I have put over $3,600 in this vehicle in the last 18 mos. The engine shuts down and you cannot stop or steer the vehicle then. The mechanics say that this happens in a lot of vehicles withmost owners end up selling it. If this is such a common problem then why doesn't Chevrolet do something about it. This could be a potentially dangerous situation since this truck is so hard to handle when it stalls.