Question about 1993 Buick LeSabre

1 Answer

When i turn on the front defroster the air comes

When i turn on the front defroster the air comes out of the vent

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 770 Answers

The door that changes position in your ductwork to direct airflow is not functioning properly. There is an actuator that operates off vacuum that makes the door open and close. The most common cause of this condition is a vacuum leak. Check all the vacuum hoses and make sure they are properly connected and are not brittle and cracked.

Posted on Oct 06, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No cold air coming from front vents?


Vent selections are sometimes powered by vacuum, and fail-safe to the defroster position when the flow is disrupted.

May 06, 2014 | 2007 Pontiac G6 GT Convertible

1 Answer

The front air isn't blowing hard through the vents but some air is blowing through the defrost


The vents are not working properly. most run off of vaccum and that sounds like your problem. could also be the controls. suburbans are famous for this.

Aug 12, 2012 | 1996 Chevrolet Suburban

1 Answer

AC is only blowing through the defrost vents in the dashboard?


I think your problem is the head unit that selects where the air comes out ie. Face, floor, defrost, or hi-level face and floor. If that's not working then it will not let you switch location that you want the air to come out.

Jul 26, 2012 | 2003 Chevrolet Tahoe

1 Answer

1990 corvette can't change air vent from defrost mode


The mode door defaults to defrost when it loses vacuum. I would start by checking for cracked/ loose vacuum hoses in the engine compartment.

Mar 18, 2012 | Chevrolet Cars & Trucks

1 Answer

The air conditioning blows out of the defrost vents. It only works on high now but use to on low. It use to come out of the front vents ocassionally. We did replace the heater / air control unit in the...


Seems like the dampers are partically closed,look under steering column and see your duck work for the vent system.Follow it back to the blower box.Unhook if there, turn on ac, if you get full air, nice and cold on low and high you have blockage in your vent duct work,check the vent line that diverts air to the diffrent selected vents. Also check for vent disconnection around sterring column,and defrost vent area.

Jul 14, 2010 | 1995 Jeep Grand Cherokee

1 Answer

I have a 2001 Oldsmobile Silhouette and the front Air Vents do not blow out anything at all. There is no A/C heat or defrost. Would a low compressor cause this? The rear vents are blowing out air as...


The blower motor is either bad, or if you hear it blowing in the front but nothing comes out of the vents, then it's a vacuum motor problem. The flaps aren't angled right to allow air to come out of the vents (either for a/c, heat, or defrost).

Jul 07, 2010 | 2001 Oldsmobile Silhouette

1 Answer

Front defogger blows out heater vent when set on DEF. All of the heater, a/c, settings work properly. One day, I turned on the DEF and the warm air blows out of the heater vents, not the defroster area. I...


Sounds like the flap valve in your vent system that allows air to go to the defrosters is either jammed or broken. Unfortunately you will have to take the vent system apart to look.

Nov 05, 2009 | 1989 Oldsmobile Cutlass Ciera

1 Answer

2007 Suburban LT .....I turn air/heat on all options but air will not come out front vents. It only comes out foot vents and/or defrost vents for driver./passenger front windows.


Need to look under hood for a vacume line going to your fire wall. your vents are vacuum assisted and i have had this hose dry rot from the engine heat causing my vents not to work correctly. the hose is normaly about a half inch in diameter and is towards the middle of the enigine compartment.

Oct 15, 2009 | Chevrolet Suburban 1500 Cars & Trucks

Not finding what you are looking for?
1993 Buick LeSabre Logo

Related Topics:

88 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7782 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...