The 2002 is (IMHO) probably the most desirable of the 24V 2nd generation trucks as it was the most mature of the series. Therefore, a lot of the problems that affected earlier 24V 2nd generation trucks have been minimized. In addition, the rear disc brakes of the 01. 5 model year trucks onward are a marked improvement.
The lift pump is more of a problem than the VP-44 injection pump. If you stay on top of the lift pump condition (get a fuel pressure gauge), you can go a long ways toward keeping the VP-44 healthy.
I took delivery of my 2002 on August 15, 2001 and it's never been back to the dealer for anything. No warranty problems at all, despite the fact that we use it almost exclusively to tow our 5th wheel RV.
Rusty