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2000 cadillac air hot or cold only outlet is front control other controls defrost etc. do not respond

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By not responding are you saying when you turn them on your getting no air?.If that's the case your blower motor is bad. Hope this helps.

Posted on Jul 24, 2009

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2000 Cadillac deville ac not blowing cold and the front defrost and floor vents not blowing suggestions? It's Texas and I'm hot please help :)


Sounds like the cables that control the heater unit under the dash are loose or broken, it could be the control too.

Aug 31, 2013 | Cars & Trucks

1 Answer

I have a international 9400i. i cannot change which vent blow air. cannot change to defrost. is there a valve that controls this? if so where is it located?


International 9400 9200 9900 heat box is under the passages side seat. That where the heater core location and the ac evaporator blower. You have two control motors under there one control the bunk for hot and cold. The other control front for hot and cold. Defrost vent and front vent is in the dash. My suck on defrost and in floor will open to front vent. I have not locate yet.

Dec 23, 2011 | Cars & Trucks

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I have a 1999 Cadillac Eldorado ETC. When I turn the heater on and bring it out the bi-level vents....The driver side blows heat and the passenger side blows ice cold....even with the air cond. turned...


the temperature door inside (there is two one for each side of car) is possibly broken if you turn the blower on low turn the temp on the passenger side from full hot to full cold or vise versa and listen closely for a clicking or snapping sound if this is heard you have a broken door in side then the dash has to come out the air conditioning has to be discharged of refrigerant which has to be done by a facility with a license. if no noise is heard it could be a control head or a motor but the most likely cause is a broken door.

Dec 15, 2010 | 1999 Cadillac Eldorado

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Cadillac 2000 el dorado heater blows cold air on driver side even when the ac is off


those controlers are vacume controled you either have a hose with a hole in it or the heater control valve is stuck or bad look under the dash by the control and see if it is moving when switched from hot to cold if not their is a line off or a hole if all lines ok then the valve is bad probley 75.00-100.00 bucks for part or so

Apr 15, 2010 | 2000 Cadillac Eldorado

1 Answer

Heater blows cold


Does temp gauge on dash show normal temp? If so problem is with the controls. If sytem cycles through normal controls IE, defroster, floor,bi-level and redirects air properly check to make sure door control is functional for heater core. If door is not opening then you will never get hot air

Feb 11, 2010 | 2000 Volkswagen Passat 4Motion

1 Answer

2000 gmc sierra 1500 5.3 v8. a/c heater control problem


your heat/cool and vent selection options are controlled by engine vacuum through small clear tubes attached to the rear of your climate control interface. Other vehicles have small steel pull wires that operate the desired changes. You might try removing the trim and any fasteners affiliated with the interface/console. GENTLY pull outward and look to see if any of these tubes are pulled off or cut/damaged. Did anyone recently install a new stereo in the vehicle? If so, the vacuum tubing and or pull wires that change your outlets could have been damaged when the stereo unit was pushed into place. Hope this helps

Sep 09, 2009 | 2000 GMC Sierra

1 Answer

This car has the automatic temperature control system


The hot/cold switch is probably bad.you have a blend door box that opens to let the cold air in and closes to let the hot air in.From what you are saying this part is no responding to the switch movement.Make sure power is at the switch and power should go through the switch when put on cold air this moves the blend door.Some times the blend door goes bad and has to be replaced its under the dash on the right side.

Aug 10, 2009 | 1999 Mercury Grand Marquis

1 Answer

Air doesn't come out front vents


look under your hood for any vaccuum leaks. check all rubber hoses under the hood. they should be roughly the size of your pinky.

Aug 08, 2009 | 2005 Ford Crown Victoria

1 Answer

Why is all the air blowing through the defrost vent only


Either the door that controls the flap that either sends the air through the defrost or the regular outlet is stuck or not working. Some of them work off of a cable and others work from vacuum. Not sure which the ford escort uses but usually you are able to hear the flap move when you go from defrost to regular cabin vent. Or possibly the air duct hose has come off that sends the air through the cabin. Good Luck and hope this helped a little.

Jun 21, 2009 | 2000 Ford Escort

1 Answer

A/c problem


You either have a bad control, or motor running the air direction door in the front HVAC unit, or a door that is stuck.

The front and rear units are totally separate.

The door directs where the air, cold or hot, should come out, whether it is panel vents, floor, defrost, or any combination of those.

This door and motor are located inside the heater box which usually requires a lot of the vehicle dash assembly to be taken apart to get to these parts.

Aug 28, 2008 | 2000 Ford Expedition

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