Also the windshield wiper arms where not put back on correctly. The windshield wipers would come to rest (when off) well bellow the defrost zone, stopping on the plastic molding at bottom of the Windshield. A very audible sound was present when the wipers went to their lowest, hitting the plastic, while on. I have since then readjusted the wiper arms to correct that problem. (removing the bolts to move the arms higher.) Now they rest directly on the defrost area when off and do not hit the plastic molding.