My rear wiper will not do a full sweep of the window
Good to know.
But seriously.
Try tightening the nut which the wiper arm is fixed to. You might need to flip up or remove the cover over the nut
Beyond that, I'm not sure what to suggest.
I think it's to do with the timing of the motor
Went and got another relay 4 the wiper but wasn't that I look under the rub bit and there is some broke wires thanks 4 ur help