Question about 2002 Cadillac Eldorado

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Air flow thru defrost and floor vents,but not dash vents.

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It sounds like one of the flaps that control air flow is stuck, you have a vacuum line leaking or disconnected, or the vacuum actuator is defective. Look up under the dash to see if anything is out of the ordinary. Look for any hoses hanging down that might have gotten snagged by someone's foot and gotten pulled loose. Hope this helped you and good luck.

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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1 Answer

Heater blows air thru floor vents and dash vents but no air thru defrost windshield vent


Suspect a defective blend door actuator motor that controls airflow for the defrost. This electric motor may be defective and in some makes and models can be extremely difficult/expensive laborwise to replace

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Oct 13, 2017 | Cars & Trucks

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I cannot get any air, hot or cold, fresh or a/c, to come thru the vents in the dash. Floor vents and defrost are the only source of air flow. What now ???


Sounds like the lil motor on the bottom side vent is bad or else garbabe fell down defrost outlet and has the motor blocked from working..Take something like an screwdriver and work some of the junk out the bottom vent..Hope this helps...

Jul 23, 2010 | 1997 GMC Sierra

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What is a blender/ it is suposed to a part of the heater area


The "blender" would refer to the blend actuators that change the flow of air from floor to vent to defrost or combinations. Properly working blend doors will allow you to direct air to the dash vents, the floor, the defroster, the floor and defroster or the floor and dash vents. If it is not working the heater will still work but you will hae no control oer where the air flows.

Dec 19, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Air blows out thru the vents but just no hot air, aslo i have to hit the dash for the air to come out thru the dash vents at times.


sounds like bad acuator motor, this is what moves the door in heater box to set hot or cold air, and other motors to set air to blow thru defrost, vent or floor. good luck.

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Air flow to defrost or floor not switching stays on dash vents


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No air flow from defrost vent on my van.


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2 Answers

No dashboard heat output


The climate control was poorly designed on these cars.

There is only heat on the floor and defrost settings, due to the layout of the ductwork.

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