Question about 1993 Pontiac Grand Prix

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No Air at Dash Vents

I have a 2003 Jeep Laredo, I have replaced the climate panel in the dash, but the air only comes out the defrost vents, not out of the dash vents.....any thoughts?

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There is a hose that looks like a dryer vent only black that connects the vents that may be unhooked

Posted on Mar 11, 2009

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2 Answers

Air only comes out defrost in all settings


I just fixed mine. The lever that opens and closes a door that directs the air flow to the defroster was broken. To be more specific, the plastic lever the actuator attaches to was broken. The actuator and the vacuum system were operating properly. It is simple to see but hard to get to. Remove the glove box and look up and to the left for a silver vacuum controlled actuator. I was able to fabricate another lever and attach it to what was left of the OEM lever.

Sep 20, 2012 | 2005 Cadillac Escalade Ext

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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

AIr always comes out of the dash vents no matter where the controls are set.


Sounds like a vacuum motor problem which controls the blend door and its position inside the dash board area where the flapper directs air from the heater core to the defrost vents or the vents, or the floor, as directed by climate controllers on the dash. Good luck on this repair.

Jan 27, 2011 | 2003 Chevrolet Blazer

2 Answers

My 2003 Jeep Liberty heater is blowing cold air when idling. Warms up when you hit the accelerator. I also hear a water rolling sound upon take off after idling. Water pump? Heater Core?


Water level perhaps. When you hit the accelerator the water volume increases. Check your water level and make sure that your thermostat is opening and closing properly. Water level I'm thinking

Jan 21, 2011 | 2003 Jeep Liberty

1 Answer

Air only blows from the dash vents and will not change to the defrost or floor, and I have no heat - only cold air. Air conditioning seems to work. 1994 jeep grand cherokee v8 with climate control.


the damper or flapper ibside the heater box is not moving. If they are vaccum actuated could be lack of vaccum or bad diafram in the actuator...replace

Sep 09, 2010 | 1994 Jeep Grand Cherokee

1 Answer

I have a 2001 jeep grand cherokee laredo, my airflow comes out of the defrost vent on top of dash only. it does not come out of any other vents. please help


inspect your vacuum lines running from the passenger
firewall to the motor for cracks or breaks .
vacuum from the motor controls air flow.

Aug 13, 2010 | 2001 Jeep Grand Cherokee

1 Answer

Auto climate controll only blows through defrost & floor,not the


it either has a vacuum line on the back of the unit off or the control unit is bad

Mar 19, 2009 | 2005 Ford Crown Victoria

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.

Oct 22, 2008 | 1989 Ford Festiva

4 Answers

Air conditioning and heating


The vacuum line on the drivers side of the intake manifold just below the throttle body fell off.

May 26, 2008 | 2003 Jeep Grand Cherokee

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