Question about 1999 Ford Taurus

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Heater only blows heat when the car is moving

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  • yadayada
    yadayada May 11, 2010

    what happens when not moving? are u saying the AC is inop in a round about way?

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Did thermostat and air vent actuator door was good so it has to be the heater core?

Posted on Sep 19, 2016

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U need a new thermostat and check your heater core and water pumps for leaks but thermostat will fix

Posted on Nov 23, 2009

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These had a problem with getting air pockets in the heater core, because it sits lower than the engine. if the cooling system is rusty, and hasn't been serviced regular, the core might be part-pluged or pluged.

Posted on Oct 07, 2009

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When I put the heat on in my car it blows warm air for a few seconds then goes to blowing out cold air.


The lack of heat in the car has little to do with the car's cooling system, other than the hot coolant is the heat source. 95% of all "no-heat" issues are related to heater controls and/or the heater core itself. Since you get some heat, and then it goes away, this indicates a probable vacuum leak in the heater controls. When you select heat, vacuum is directed to a vacuum motor. This motor operates a vacuum actuator that moves a linkage that moves a door inside the heater box to direct the interior air through the heater core. If this actuator has a leak, it will activate, then as the vacuum leaks off, deactivate. You probably need to have a part replaced in the heater actuator mechanism.

Jan 20, 2015 | 2005 Nissan Altima

1 Answer

Ask.com


Look under the hood behind the engine while someone moves the heat control knob. This thing moving is the heater control. Move it manually to free it. Or adjust or replace.

Mar 14, 2014 | 1999 Acura TL

2 Answers

95 buick lesabre heater problems


speedometer works intermitenly

Dec 16, 2013 | Cars & Trucks

1 Answer

My heater won't blow warm air if i am parked only when the car is moving


If your engine temp reads warm then your heater core is clogged. Try flushing the system. If it reads cold then u need a new thermostat

Mar 04, 2013 | Cars & Trucks

1 Answer

The heater kicks on but only blows cold air


Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

Jan 03, 2013 | Cars & Trucks

1 Answer

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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No heat on Oldsmobile Silhouette?


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

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Heater blows cold?

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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Hot air on the driver's side vents only?

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?

http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

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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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Dodge A/C come out of defrost vents only?

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?

http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html

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AC not blowing through Vents on 2007 Chevy Trailblazer?

http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html

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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

Heater blows cold air


Air Temperature Control Blend Door Failure No Heat

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Nov 01, 2012 | Pontiac Cars & Trucks

2 Answers

The heater blows cold looking for heater fuse or selenoid to try to fix


if the heater is blowing cold then it is not a fuse
it is probably your thermostat or heater core
but i will change the thermostat first
and bleed the heating system also

Dec 05, 2010 | 1983 Chevrolet S-10

1 Answer

My heater only blows hot air when the car is moving and cool air when I sit at idle. Also the inside window fog up if I try to use the defroster mode 1st thing.


Hi:
Your heating system is dependent on hot coolant to be circulated through your heater core, which a fan blows across, and you get heat. If you only get heat when you are moving, that means that either your engine is low on coolant, or the engine's water pump is not working well. Check your coolant level when your engine is cold.

Nov 23, 2009 | 2004 Dodge Stratus

1 Answer

Heat problems


There is a valve located on one of the heater hoses that when you select heat moves to allow heated water to flow through the heater core. Yours is probably just stuck, with heat selected on the dash try to move valve by hand.

Dec 23, 2008 | 1998 Dodge Stratus

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