The motor works but the wiper arm does not. I removed the wiper arm cap and found that the bushing that attaches to the motor spindle is cracked. The whole wiper arm assembly will most likely need to be replaced.
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The part that is attached to the wiper motor is in the wrong location. Remove the nut or bolt that attached the wiper transmission to the motor and remove the short arm from the wiper motor. Turn the wiper motor on and then off. wait until it stops moving. Set the wiper arms to the correct "home" position. Reattach the wiper transmission arm to the wiper motor.
It Sounds Like, Either The Arms Are Loose ,If You Can Hear Something Moving Behind The Dash, Or The Linkages Are Seized ,If The Motor Just Hums No Movement Heard,In Which Case Try Spraying Q 20 On The Linkage And Try Moving The Wiper Arms By Hand To Get It Going Again, If Not The Motor May Just Be Burn;t Out.
Yes. Immediately in front of your windshield is a panel about 3 or 4 inches wide and that panel, which is the same color as your car, goes from one front fender across to the other one. That panel, which has many vent holes or louvres in it, also has 2 holes for your wiper arms and blades, where they attach. That panel will come off, sometimes you have to remove the whole hood of the car to get it off. (You have to take both wiper arms & blade assembly off first.) You will then find the linkage from the wiper motor to the driver's wiper arm/blade is disconnected. (The wiper motor is about the size of your fist, and has a few wires attached to it.) Probably a plastic bushing has fallen apart on the connecting link. You will need to get a new or good used connecting link and attach it.
Flip the caps up from bottom of wiper arm to expose where they attach to pivots. There should be a nut holding them on, try snugging that nut up a bit & see what happens. if it helps, remove the nuts, pry the arms off, and clean inside where spline etc., is and re-attach arms in proper(same) spot and tighten nuts again, but be careful not to tighten too much & snap the stud.