One problem related to wiring has been reported for the 2002 Chevrolet C3500. The most recently reported issues are listed below.
While driving the vehicle just completely shuts off, I have replaced everything & 1 year later and 25,000 miles later & 5 accidents the vehicle still does it now it wont even start. This is very dangerous and there should be a re-call on this I've read that this is very common in this vehicle and there are various recalls on the wiring harness, transmission, fuel line, filter, headlights, towing package, brake system, brake lights, brake warning lights. Everybody who is experiancing this issue should file a complaint to resolve this issue. I almost lost my life many times and I lost alot of money on this vehicle gm should take this truck back thats for sure 2002 C3500 express / cutaway duramax diesel.