Question about 1999 Ford F150 Regular Cab

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1999 f150 A.C. problems

My A.C. will only blow out of the de-frost vent. I do get cold air. It just will not blow out of the panal vent or floor.

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There are vacumn motors that operate these doors, control by module in dash, motor could have bad diaphram, correctly or module is not directing vacum properly

Posted on Oct 05, 2008

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I have a 1999 Caddac DeVille . The AC works fine during the summer but in the winter it won't blow out hot air unless I'm driving. I've let the car run in the morning to warm up but the inside...


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My heater does not blow in floor in a dodgeram 1500


the heater vacuum motor and lines needs to be checked.Also get the blend door checked.

NO HEAT ON FLOOR VENTS

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As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

2000 Toyota Avalon: No heat on Passenger Side?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html


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http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html

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Temperature gauge does not move and no heat when heater is ON?

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold?

http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold?

http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html

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Ford F150 Ac only blows through defrost vents?

http://technoanswers.blogspot.com/2012/01/forf-f150-ac-only-blows-through-defrost.html

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http://technoanswers.blogspot.com/2012/01/dodge-ac-come-out-of-defrost-vents-only.html

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Ac vacuum line on dodge cummins?

http://technoanswers.blogspot.com/2012/01/ac-vacuum-line-on-dodge-cummins.html

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Ford ranger AC blows cold through defrost vents instead on cabin vents?

http://technoanswers.blogspot.com/2012/01/ford-ranger-ac-blows-cold-through.html

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2005 Chrysler PT Cruiser: A/C Blows Warm?

http://whoisbyme.blogspot.in/2012/06/2005-chrysler-p8t-cruiser-ac-blows-warm.html

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2009 Mercury Grand Marquis: A/C blows Cold From Defrost Vent Only?

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Passenger side temperature is warm air out of dash vents?

http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html

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These will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

2007 chrysler town and country a/c blows cold through floor and defrost vent but not dash vents


Often a sign of a blend door problem. The blend door or doors are in the heater a/c box behind the dash.

Jun 28, 2012 | Chrysler Town & Country Cars & Trucks

1 Answer

My 98' ford f150 v6 Has air but it only blows out the defrost and floor. Why won't it blow out the vents ? Please help I'm burnin up!


there are vent doors under the dash that are vacuum controlled by the switch, i am assuming the switch is bad , find the door for the vent an open it disconnect the vacuum line and plug it, worry about defrost when it gets cold

Aug 20, 2010 | Ford F-150 Cars & Trucks

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.

Oct 10, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

A/C only from center vent. Heat from side vents and floor vents.


sounds like the blend motor from hot to cold is stuck open half way allowing both temps to come into the car.

Aug 24, 2009 | 2003 Jaguar S-Type

1 Answer

My air conditioner blows out the defrost only


Sorry need more info,but if air works fine,and cold,but does not blow out of the vents,,look for a vent door actuator motor to be bad.any more help please text me,roniecon@gmail.com

Jul 20, 2009 | 2000 Lincoln Navigator

1 Answer

1995 Chevy Silverado 4X4 cold air blows through floor vent


none of the above, the vent door is stuck inthe open position most probable cause is vacum leak look closer to your fire wall and you will see a very thin vacum hose going into the vehice which seems to be unpluged!!

Nov 13, 2008 | 1999 Chevrolet Silverado 1500

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