Question about 2006 Nissan Sentra

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Cannot adjust temperature,

Ac blows hot. heater always on.

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That is your blend door motor is stuck

Posted on Dec 07, 2012

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SOURCE: ac blows hot air

Before doing anything I would have the freon level in your AC system checked, freon leaks are quite common and easily repairable by a specialist.

Posted on May 31, 2009

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97 Dakota 3.9 Vents let hot air into the cab like the heat is on even when the heat is set to off and the temps turned to cool.


There are flaps called blend doors, they can be ether electronic or manual ( cable operated) and sometimes vacuum, they are the ones responsible for making the HV/AC blow cold or hot air. Just go under dash and adjust the temperature cold/hot and listen carefully for the blend door to move and or an actuator to close or open.. Best thing is just to take out actuator and adjust it manually...
And you probably have a bad thermostat thats why the truck wont reach operating temperature. Previous owner may have taken it out to try to hide and overheating problem. Good luck ??

Jul 31, 2016 | 1997 Dodge Dakota

1 Answer

Heat problem. Heater only works sometimes. Blows out almost AC temperature majority of the time. No engine overheating problems. May or may not be related to actuator issue (vent always open)


Check to see if your heating system is properly filled. Air in system can often prevent the proper flow of hot coolant into the radiator core resulting in your issue.

Oct 20, 2015 | 2002 Chevrolet S-10

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


------------

No heat on Oldsmobile Silhouette?


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

------------

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

--------------

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

-----------

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

--------------

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

---------

Ac vacuum line on dodge cummins?

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

---------

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

----------

2005 Chrysler PT Cruiser: A/C Blows Warm?

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

-------------

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

-----------

AC not blowing through Vents on 2007 Chevy Trailblazer?

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

----------

Passenger side temperature is warm air out of dash vents?

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

----------


These will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

No heat from vents


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

------------

No heat on Oldsmobile Silhouette?


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

------------

Heater blows cold?

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

-----------

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

----------

Hot air on the driver's side vents only?

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

--------------

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

-----------

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

--------------


No heat, blower blows only cold?

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

Ford F150 Ac only blows through defrost vents?

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

----------

Dodge A/C come out of defrost vents only?

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

---------

Ac vacuum line on dodge cummins?

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

---------

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

----------

2005 Chrysler PT Cruiser: A/C Blows Warm?

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


-------------

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

-----------

AC not blowing through Vents on 2007 Chevy Trailblazer?

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

----------

Passenger side temperature is warm air out of dash vents?

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

----------


These will help.

Thanks.

Nov 28, 2012 | 2006 Ford Taurus

1 Answer

My AC works but heater blows cold on my 99 Plymouth voyager


I used to install AC in those, so I might be able to help. It is either the temp adjustment linkage, or it is the accessory selector. When you go from AC to heater does the air move from the vents to blowing on the floor? If so then it is possible that the linkage to the temp controller has probably slipped off one of the levers that controls the incoming air, from cold to hot. It is an easy fix. It would have to be that, because if you couldn't switch from AC to heat, you can always make the AC hot with the temp control lever.

Feb 20, 2012 | 1999 Plymouth Voyager

1 Answer

Ll2001 suburban, when the AC is on, the front AC blows hot, warmer than ambient temperature while the rear AC blows cold air as expected. The flapper door seems to be working and both air box filters are...


possible heater hot water control valve. if equipped would be found on one of the heater hoses under the hood. also try cafeully pinching the heater hoses to stop water flow.

Aug 04, 2011 | 1993 Chevrolet Suburban

1 Answer

Ac blows hot air comp is running


Make sure that the tubing around the accumulator is getting cold.
If not, the refrigerant may not be charged up.
Otherwise, the vacuum motor for selecting cold air may be not working correctly causing heated air from the heater core to be routed to the interior of the car.

Do you hear the vacuum motors working when adjusting the heat to cold selector? or changing the thermostat temperature if so equipped?

Jul 03, 2010 | 2004 Ford F150

1 Answer

2005 Lincoln LS. It blows extremely hot air all the time, and is unresponsive to temperature inputs from either side of the car. It always blows hot air.


There is a very good chance the Dual Coolant Control Valve has failed. This is located at the botton right side of the engine fan shroud and has 3 heater hoses connected to it. This valve controls heater or AC temperature inside the car.

Jan 05, 2010 | 2002 Lincoln LS

1 Answer

Temperature Control not working on 1999 Ford Explorer


Sounds like your temperature actuator is not moving or your temp door is broken. On max a-c ,coolant is shut off to your heater core allowing only cold air in.

Jan 16, 2009 | 1999 Ford Explorer

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