On my 04 Durango, only one of my wiper blades is working..what could be the problem?

 

If they still operate as the older, the driver side operates the passenger side via rods. And if so chances say something came undone or the wiper arm is stripped. ( If the wiper was stripped some movement would still occur. Everthing should be under the cowl

 

its a ball and socket design on those rods. the plastic might be worn out or as duranged408 said. it might have just popped out

 

Thanks for the help...I had it looked and and the bolt was loose that holds the arm on...glad that's all it was!