My windshield wipers don't wipe , the motor works, how much will it cost to fix

the linkage/transmission bushing has more than likely came loose/broke off,popped off?will have to be inspected to see the cause.just keep plenty of RAINX on the windshield,if raining/snowing/sleeting, the water will roll right off! worst case,if the transmission even broke,it's $140.00 at the parts house,BUT plenty of used ones on e-bay for $56.00 free shipping,no tax.