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1998 Mercury Sable Vents

Tiny
TURBOHAUL
  • MEMBER
  • 1998 MERCURY SABLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 125,000 MILES
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?
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Tuesday, June 8th, 2010 AT 9:49 PM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
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

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Wednesday, June 9th, 2010 AT 4:42 PM
Tiny
TURBOHAUL
  • MEMBER
  • 2 POSTS
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?
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Saturday, June 12th, 2010 AT 1:48 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic_82.jpg



Check under hood should have a picture of vacuum route
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Saturday, June 12th, 2010 AT 4:19 PM

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