Question about 1994 Buick LeSabre

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Air not coming out of vents

My 1994 buick lesare vents don't want to work all the time. i turn vent on it just comes out of defrost. i can be going down road and it will start coming out of the vents. the ac works same way. it works for short time then cuts off and only come out of defrost agan. what can i do to fix this. need the
AC. when it does work it is very cold.

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  • Rick Williams Jul 09, 2008

    AC Blows out of defrost sometimes. Not all the time. I can hear AC compressor cutting on and off very quickly sometimes. Had it vac. and recharged. Worked good until next day. Doing same thing again now. It is not out of 134a.

  • vasi19 Jul 23, 2008

    Air comes out defrost and floor only. No air out dash vents.

  • Anonymous Jul 23, 2008

    air will come out of the defrost but not out of the vents

  • lisaknight24 Nov 29, 2008

    I have the same problem. when i bought the car it was coming out of the vent the 2 days later when i went to start the car and put on the a/c it only came out of defrost and floor and now it wont come out of the vent at all.

  • robert2010 May 11, 2010

    I moved the lines on the actuators around and lost my paper saying which tube goes to which actuator.... any help?

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  • Master
  • 426 Answers

What your problem is that you have a issue with the vacume system, what i did was removed the bottom panel on the passenger side looked up and you will see a bunch of wires, look for a black box (should be right above your head by time you squeeze in there and it has a yellow/amberish type of color you will see that you can remove this its a rubber piece cut the pink tube on the side about 2 inches away from the plug assembly, and slide it into the blue tube this will bypass all controlls and shoot the air out of the front vents, you WILL NOT beable to set it to defrost max/normal or htr (mainly which vent flaps are where) this has worked formonths and the a/c acts as if its on normal mode to use the heat just slide the switch :) until you can test all the other equip this will keep you cool or warm

Posted on Jul 24, 2008

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