Mazda Repair: Windsheild wipers on Mazda Protege, splined shaft, motor shaft

Question
Hi, I was driving during a rainstorm and turned on the wipers. They worked fine for several minutes and then stopped completely. I can hear the motor turning if the wipers are on and they will occasionally catch and run half a windshield worth. Can I fix this myself or should I take it to a shop?  Thank you in advance.
Milly

Answer
Not my area of expertise but, raise the hood, look under the windshield at the wiper arm linkage follow it to the motor.  There is a nut that holds the linkage to the motor it has a splined shaft.  I sounds like the nut may have loosened allowing the linkage to slip on the motor shaft.  If so refit it then tighten it up.