rear wiper adjustment
wiper arm goes beyond the range it should cover; usually goes below window
edge. ..took end cap off of wiper "rod" which reveals a hex not inside. I've
tightened that nut but can't get the range of the blade arm set to cover the area
on glass it used to cover. The range is about the correct distance from start to
finish but I can't adjust that range to stop on the glass where it used to.....