99 ram 2500. 79k miles. Been running great, but last night it died while driving. Tried to restart and runs very rough and smelling fuel. Had it towed to a garage, and they found 7 cyl running 60lbs compression and 1 at zero. Took valve cover off and saw a broken valve spring. Must have jumped time? Mechanic said the dodges use a plastic gear for the timing chain and they go often. Anyone else had a similar problem?