Two problems related to other fuel system pump have been reported for the 1998 Dodge Ram 2500. The most recently reported issues are listed below.
The lift pump that feeded the injector pump failed, and was costly to replace it. Vehicle lost power.
I am amazed there are no reports on 1998 1/2 - 2001 model Dodge pickups with the cummins diesel engine as the bosch vp44 main (injector) fuel pump has a failure rate of 100%. I've had 3 fail so far & for diesel mechanics it's common knowledge that it's not a matter of if the the vp44 pump will fail, it's just a matter of when. The last time a pump died on me was when I was going down the interstate @ 70 mph & the engine just shut off. I knew immediately it was another fuel pump failure, but other drivers may not realize what went wrong & I'd be surprised if there haven't been any wrecks due to vp44 pump failure, which gives you no advance warning - it just quits. In 2002 Dodge/cummins charged the fuel system on the diesel engine for Dodge pickups (including a different fuel pump), but all 1998 1/2 thru 2001 models came with the same bosch vp44 main injector pump.