Hi guys i just recent purchased a 93 mark VIII and i'm having a few problems with it wonder if anyone can help? 1st the A/c dosen't blow through the center vents only throiugh the defrost and floor vents. 2nd the windshiled wipers don't park themselves is that the motor or the switch? My car has 314 000 kms on it, so what kind maintenance items will the engine need?