Question about 2003 Ford Crown Victoria

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A/c comes out the defrost and floor but not the vents

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  • Ford Master
  • 4,340 Answers

Look for missing, loose or dislodged vacuum hoses, the heater is designed to fail in the defrost mode.

Posted on Sep 13, 2010

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Posted on Jan 02, 2017

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SOURCE: Dash vents will not blow air. Defroster and floor vents blow fine.

Is it a new vehicle? I had a new vehicle that had the same problem. Answer was that the holes weren't punched out of the vent.

Posted on May 23, 2009

  • 37 Answers

SOURCE: PROBLEM WHEN SELECTING THE DIRECTION FOR THE AIR

Sounds like you have a supply vacuum problem. When you lose supply vacuum to the control head it defaults to defrost.

Posted on Mar 13, 2009

emissionwiz
  • 76164 Answers

SOURCE: Air won't come out of vents, but will from defrost and floor.

if it switches function even only a few then the problem is not the vacuum source (if u had no vacuum it would default to defrost mode) the problem is the dash control head vacuum mode control switch, i don't think u can just replace the switch, u have to buy the whole climate control module.

Posted on May 21, 2009

  • 432 Answers

SOURCE: All Air Conditioning blows our the defrost vents

Some thing you could look at would be this. The control is usually fed by a vacuum line or small hose thats is connected to your intake manifold.
With a cold engine,look for a skinny vacuum hose that runs from the intake toward the fire wall . It should be going inside the cab and connecting to the A/C vent control.Some times the hose becomes disconnected or splits or cracks due to heat under the hood.
Thats usually the trouble.
I hope this helps you.

Posted on Oct 06, 2009

roniecon
  • 6826 Answers

SOURCE: A/C not blowing thru vents just defroster and floor

It is a vent door actuator motor on top of the blower box,the dash has to be removed and set in the seats to replace the actuator motor.Cost for the part is about 50.00 dollars

Posted on May 23, 2010

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1 Answer

Does the Erg vacuum solenoid cause the ac switching from vents to defrost


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If I am reading correctly you are hearing the vent doors moving to redirect the airflow to the vents you choose. This is normal and can be more noticeable if the blower fan is on, putting air pressure against the doors.

Jan 09, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

A/C blows from defrost and floor vents, nothing from dash vents.


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1 Answer

Problem with air not coming out of vents.


Check for a vacum leak from the engine to the a/c.The color of the hose is black. Also check if the heater control valve hose is unplugged. If you have vacuum the it sounds like the door for the vent/floor/defrost is broken.

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