nothing is wrong with your motor.
1. if you goto a local auto parts store, they should have some sort of soluble lube you can add into ur windshield washer container under your hood. his thing costs about $2.49.
2. Go through the plasting piping to see if some/any gunk is clogging it. This takes longer, but must be done to get aroung the problem if step 1 fails.
3. Buy cheap plastic piping and replace the old one all together. (make sure you dont loose any of those lil black adaptor thiggys, cuz then its gonna get messy)