One problem related to fuel pump has been reported for the 2003 Dodge Ram 3500. The most recently reported issues are listed below.
On the seventh my truck started missing and sputtering. It only had 53,000 miles on it. When I went out the next morning to start my truck, it would not start. I could not make it to college or work that day. It was due to a lift pump failure. I had to buy a whole new fuel system for my truck because Dodge does not make a replacement. It cost me about $700 for the fast fuel system and another $50 for my fuel pressure gauge. Plus time and the damage to my truck during the install. If this would have happened at an intersection, someone could have been hurt.