slow blinkers

ok, i now the vehicle isn't a mini, but it seems like this is the section with the most posts......and i couldn't find a better section.....

ok, i have an 84 buick lesabre, the drivers side blinkers work fine, but the passenger side is very slow (like maybe a flash every 3-4 seconds, whereas the driver side is like 2 flashes a second.......)

anyone have any suggestions as to what the problem could be? thanks.