squirt some wd 40 or panther **** in there. then give it a little tap in the outside of the lock. might free up some tumblers

 

I have the same problem.... wd didnt work for me..

 

you're going to end up replacing the latch inside the door, like a 30min job. if you cant find one from a dodge ram, one off of a durango or a fullsize dodge van will work.

For that matter also a caravan latch will work also, thats what i have on my passengerside door, works just fine locks and unlocks along with the power locks work too