Having problems with your 1993 Buick LeSabre ?

My ac throws air threw the front vents sometimes

\015 I just replaced the vacuum motor.and now my ac throws air from everywhere except the front vents.it throws it when it wants to any suggestions?\015
Posted / edited by AnonymousUser on : 15-01-2018

Answers :

The default position is the defrosters. It takes vac to move the blend doors to the floor and dash vents. You may have a leak somewhere in the system or another blend door that is sticking. Could also be a problem with the selector but I doubt it.
Repair Help & Product Troubleshooting for 1993 Buick LeSabre

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

My ac throws air threw the front vents sometimes

The default position is the defrosters. It takes vac to move the blend doors to the floor and dash vents. You may have a leak somewhere in the system or another blend door that is sticking. Could also be a problem with the selector but I doubt it. ... 1993 Buick LeSabre

I have a 2003 Ford expedition Eddie Bauer... My air conditioner is not working.. No air comes out of the front air vents at all.. And the back vents come on but they make a clicking noise for a while sometimes goes away sometimes it doesnt. It just so happended to stop working during fire season Had the air conditioner on while driving through ash.. What could this be?

More than likely it's going to be the vents actuator motor. ... 2003 Ford Expedition

We are having couple of problems with the Automatic climate control. First it does't work when the car is very cold. It only blows air out the rear vent.( I understand that their is a delay, but long after the delay counts down it still does not work) We then turn off the automatic climate control, and the air will the start to blow out the front vents, but sometime it won't and we have to let the car idol for 20 minutes before the air will start to blow out the front(very sporadic). Secondly, t

The only way to accurately access this condition is with scanner and testing.\015\012\015\012You could have a AC relay that is stuck on. Its located under the hood. Just remove it for now and see if the heater issues change. Its located ... 2001 Dodge Grand Caravan

1993 buick lesabre doesnt throw any cold air threw the vents

... 1993 Buick LeSabre

2001 Expedition-- Location of the air duct actuator? A/C blows out front vents at first but then switches to blowing out of the defroster only (by itself :-( ) Sometimes it will correct itself and go back to blowing through the front vents... no other problems with a/c, blows cold, no freon loss... Thx a Million

The motor that select the air to blow is the mode door actuator, some models are supply by air solenoid valve, if you want to see the location of mtor actuator, this is on the left side of evaporator case, a little bit upper of accelerator pedal ... 2002 Ford Explorer


The louvers are controlled by a vacuum tube that runs under your hood. Mine was pinched by the guy who replaced my battery. Check for a thin rubber tube that runs along the passenger side, by the battery. ... 2000 Buick Century

Hvac problem with 04 montana Switch my temp control knob to hot, and my air flow knob to mix front vents and floor vents, and I get hot air out the floor and luke warm air out the front. Since I don't have rear heat this is not enough to warm rear passengers. Turn my air flow knob to only front vents, air flow and temp increase but not enough to stay warm. Switch my temp control to cold, and I get cold air out the front but luke warm air out the floor vents. My feet get hot in the summer. Any i

... 2004 Pontiac Montana

Expedition air vent front throws cold air but back doesn't

... 1999 Ford Expedition

My 2005 Ford Expedition is blowing hot air from the front vents and suddenly the rear vents stopped working at all but I can sometimes hear a noise on the rear part of the truck ,may someone please tell me what it is and how I can fix it?

To me this sounds like a blend door problem. this is in the heater box, first you need to pinpoint the noise. there is 2 heater boxes on front and a rear both have blend doors. being you hear a noise, I suspect either door is jambed by forign object ... 2005 Ford Expedition

1998 Cadillac DeVille, A/C is not blowing hard thru the vents(almost nothing). It worked before but sometimes blows underneath or on the dash only. Will then blow lightly thru the front vents. It does not blow air in the back at all. But when I pop the hood the silver a/c cyclinder is very cold including the pipes. What could be the problem?

Change your cabin air filter, it is probably clogged not allowing air flow. see your owner's manual for instructions. I hope this helps ... 1998 Cadillac DeVille

My 2004 Dodge Stratus a/c blows air from the front window defogger vents, not from the ac vents, causing the window to fog up. It switches intermittently from each sometimes, too.

It sounds like you blew your 'hvac' fuse which should be located under the dash on the drivers side, just pull the cover off the fuse panel and on the backside of the cover it should say which fuse is which and when you pull out the fuse if you look ... 2004 Dodge Stratus

I have a 2004 Mercury Mountaineer. My air conditioner blows cold air through the front vents and the vent at the rear of the center console. The problem is that the vents in the rear ceiling blow hot air. The blower for the rear ceiling vents are controlled by a separate temperature dial and blower switch above the front windshield. What is causing the rear ceiling vents to only blow hot air?

... 2004 Mercury Mountaineer

2000 pontiac montana air conditioner driver side vent blow warm air yet passenger side and rear vents blow cold air. sometimes the driver side vent blow cold air. is flapper valve stuck sometimes?

That is correct, the air blend door actuator. "flapper valve" may need to be replaced or cleaned and free from binding up. Good luck and hope this helps. If there is an Auto Zone in your area, they can order the part you need and give you the step by ... 2000 Pontiac Montana

2005 Silverado 2500HD 4WD - It appears that the pneumatic valve controlling the directional air flow from my heater/AC is getting stuck. When I switch the fan to front window defrost then back to front/bottom no air flow comes out the front or bottom air vents - the flow is entirely out the upper defrost vents. If I drive over some bumps the valve loosens and air flow again comes out the front/bottom vents. How do I fix this??? Thanks

The default configuration when all vacuum fails is to defrost vents. Most likely your vacuum supply to the switch is weak. Check the connection of the supply line to the intake manifold for damage. If no problem there, trace it to the switch on th ... 2006 Chevrolet Silverado 2500HD 2WD

Front ac vents not working, no air blowing through vents. middle and rear vents are fine. fan is not blowing air through front vents. only air comes through when on highway or driving over 45mph.

... 2006 Dodge Grand Caravan

Air Vents have a 97 Jeep Grand Cherokee with dashboard air vent problems. No air is comming through the dashboard air vents, It comes through the floor vents nor matter what setting I use on the controls. The side vents by the front doors have air. I can see the vacuum motors attempting to move the doors, but nothing happens, No vents air, no defrost, although the control for temperature of the air mixture worls OK.

I had the same problem and read through different forms and when I went under the hood - the vacuum line actually disconnected - put it back on and everything works great - thanks so much for your help ... 1997 Jeep Grand Cherokee

My air conditioning cutts off from the front vents then comes back after awhile, sometimes it takes long time.

You have a vacume leak it takes a wile start looking under the hood and listen for what sounds like a air leak once you find the leaks patch them with rubber hoses ... 1996 Oldsmobile Cutlass Supreme Coupe

Air blowing when you turn air on high for heat or ac and have it so air is blowing out front vents you can hear it blowing hard up under passengers side of dash but hardly any ******* out front vents or out defrost vents

Usually a sign you have a blend door that is stuck, or the controller has failed. The blend doors use small electric motors controlled by the main controller on the dash. ... 2000 GMC Sierra

I have a 200 silhouete, v-6 3.4 it blows cold air thru the front vents but hot air thru the rear vents, i have messed around with both front and rear controls and still no cold air on the rear vents

It sound as if you rear inline filter is pluging up try these website to see if you can get any information on your van car a/c repair www.directgardening.com and the other ... 2000 Oldsmobile Silhouette

2005 dodge grand caravan hot air blows out front vents driver side cool air out front vents passanger side

... 1995 Ford Windstar

My heat is not working. Its throwing out very cold air now. It happen before and i replace thermostat and blew air threw heater core. I blew air threw heater core the other day now its throwing out real cold air.

It sounds like your heater core is stopped up, or be sure your coolant is flowing, and picking up heat from your engine...Thermostat, water pump, etc. ... 2000 Chevrolet Blazer

I have a 1998 Ford Explorer Eddie Bauer and the AC unit normally works in all vents, however, as of late when that AC is turned on it only blows from the rear vent in the back and not the vents at the front of the vehicle. The air is still cold in the back but there is not air coming from the vents in the front. Please advise. Thank you.

Sound like a vent actuator is not getting vacuum or is broken.See attachment\015\012 ... 1998 Ford Explorer

My 2007 Mountaineer has dual temperature controls. For the past week while driving to work, the air conditioner is running and is blowing cool air from all vents in the front seats then all of a sudden, the passenger side air vents start blowing warm air (like the heater was turned) while the drivers side vents continue to blow cool air. What is causing the difference in air temperature from the drivers side to the passenger side when the air conditioner is running?

... 2007 Mercury Mountaineer

I have a 2008 honda pilot , the side and rear vents work fine and all speeds of fan work but no air out of middle front vents . I have changed the cabin filter , still no air out of middle front vents.

... Cars & Trucks

I have a 2004 envoy and my air will not blow through my front vents. The air blows fine through my top, bottom, rear and side vents, why is it not blowing through my front vents?

... 2004 GMC Envoy
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 2.2147 seconds