[T2] 78 wipers shot

[Tim Shepherd]

What has most likely happened is the nylon gear has come loose on the shaft. This usually happens when the pivots going through the body have lost 
their lubrication and start binding. The next weak link is the gear 
which is molded onto the shaft, no set screw or anything holding it. I don't know of a fix for this, other than to replace the whole motor.