So my higher wipers don't work properly then jump on the rail, its nothing to do with the motor itself i took of the cowl screen to see what i happening someone said oh just tighten the bolt on the linkage arm it didn't do **** all the wiper arm is motor is turning no problem on high but i can literally see the linkage arm jumping on the track i cant figure it out, if i didn't do a clear job explaining this i will post a video of what its doing tomorrow