A number of possible reasons... bad fuses, bad relay, bad turn signal switch, bad flasher module, defect in the wiring, bad ground. Those are possible reasons why.
Yes but the gears have to be changed
Haynes Repair manual has the wiring diagrams for your vehicle in section #12-28
No
We have changed the light
no they won't in 2002 they changed the bolt pattern with the body style. the 2002 and newer are much larger that the 90's style
The shift control systems are different. It would bolt up, but it would never shift.
A dodge pickup 1500 would stall out while driving because of a defective air filter.
YesYes
Most likely you have a flasher that needs to be replaced.
No
No.
Yes