1998 Mercury Sable Vents

1998 MERCURY SABLE
125,000 MILES • 6 CYL • FWD • AUTOMATIC
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TURBOHAUL
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One morning after i start the car, i put on the ac, and i realized that no air was blowing out of the front vents, but ac from the floor and defrost vents. The ac control played no role when i switch from defrost to floor only or to front vents only. I checked the actuator and it seemed to be fine. What could be a possible solution and how to repair it ?
Jun 8, 2010 at 9:49 PM
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BMRFIXIT
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Manual A/C-heater controls are included in the integrated control panel, located near center of the instrument panel. A/C-heater controls include a function selector knob, temperature control knob and blower speed control knob. Function selector knob actuates a vacuum selector valve that controls vacuum to door actuators. Door actuators control position of outside/recirculation, floor/panel and panel/defrost doors. Door positions determine airflow modes (panel, floor, defrost, etc.). Check for vacuum leaks as it will default to defrost and floor in case of lose of vacuum


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic_78.jpg


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_720.jpg

Jun 9, 2010 at 4:42 PM
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TURBOHAUL
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One small problem. I can't seem to find where the vacuum hose is connected from the engine. Any diagram that could assist me in locating the vacuum hose fitting?
Jun 12, 2010 at 1:48 PM
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BMRFIXIT
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https://www.2carpros.com/forum/automotive_pictures/99387_Graphic_82.jpg

Check under hood should have a picture of vacuum route
Jun 12, 2010 at 4:19 PM