2001 Buick lesabre

Asked by Evens Aug 04, 2018 at 04:15 PM about the 2001 Buick LeSabre Limited Sedan FWD

Question type: Maintenance & Repair

I have a 2001 Buick lesabre
A/C only blow through the windshield and the floor
not the a/c vent in front of you.
What could be the problem please

2 Answers
30,465

Tom answered 5 years ago

The directional vents (mixing vents) are under the dash ,,, with the engine running you should hear a noise when you change the vent setting. The vent actuators are vacuum controlled through the knob you use to set the direction/function This knob uses both current and vacuum directional ports to send the signals to the actuators ... over the years some of the seals (O rings) become brittle and even crack ,, this causes partial and sometimes no control of the directional vents ... Your problem could be a number of things but I would start at the control knob before going under the dash

Mark helpful

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