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2001 impala 3800 eng. heater blows hot but i cant get the vent control to switch from vent to defrost or feet vent. Does the blend door actuator control this issue? If not what is the fix? Thanks Scott

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  • Contributor
  • 46 Answers

Check your control lever to make sure its connected at both ends.

Posted on Nov 03, 2012

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Blend door not working.

The bleed door controls air temp not where it comes out, dash, floor, defroster, this is most likely a mode control switch problem, that switch is on the ac control head.

Posted on Sep 23, 2008

aaangie220
  • 202 Answers

SOURCE: 2004 suburban rear a/c only blows hot air

ase mechanic:
there are separate actuators for the blend doors. one for heat and one for cool. they work opposite and in conjuction with each other, if that makes any sense. ones open, ones close, for each different climate. sounds like the the cold one isn't opening in the rear.

Posted on Jan 29, 2009

honeymokey
  • 3113 Answers

SOURCE: air blend door

Replace the broken actuator.

Posted on Apr 15, 2009

moparownr
  • 667 Answers

SOURCE: 2004 Ford Expedition XLT, front blend door actuator

Hope I was avle to help, glad you up and going.

Posted on May 27, 2009

SOURCE: 1995 Chevy k1500 heater problems.

For a 95 Chevy Silverado....I replaced the Blend Door Actuator on the passenger side. Just behind the slide out cup holder. Yo ucan acces easily by removing the ash tray piece and the glove box....Or just the glove box and work like hell to get a socket in a tight place.

There are 2 actuators....one controlling the (Mode and Temp 89018681) and the other the (Air Inlet 89018367). I called the dealer and the parts were 85-125. I got it From TBA Auto (local store) for 39.00. A 20 min job at most.

Posted on May 28, 2009

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1 Answer

04 impala heat stopped working but fan works


Are the heater hose hot to the touch ? Two hose's from the engine that go to the firewall an into the heater core ! Manual or automatic temp. control ? Do you feel air blowing out of the vent's ? cold ? Temp blend door actuator could be bad !

Dec 01, 2016 | 2004 Chevrolet Impala

1 Answer

No air blowing through vents


with they key switch on eng off turn on the a/c blower on can you hear it? if not you would have to check power at your blower motor if its getting power you have a bad motor if its working and there isnt air comming through theres another motor/actuator for a blend door maybe its stuck and blowing the air to your feet only or to the defrost vent...

Oct 06, 2013 | 2006 Ford Explorer

1 Answer

Heater blows out of defroster and floor vents no where else no matter where switch is set


Three things come to mind.
Defective door actuator.
Broken door.
Faulty switch.

Have someone operate the controls while you look up at the motors(at least three) blend, recirculation, and vent control.
observe the motors inaction you might be able to see the axles on them move. if all of them move, the door is at fault. Requiring dash and vent assy removal for repairs.

Oct 28, 2012 | 2001 Dodge Ram 2500 Truck

2 Answers

A/C will only blow through defrost vents


Common question on this site. On late model cars, the vents are controlled by blend door motors. Small electric motors open and close doors to direct air flow.
Chances are you have a blend door that is stuck or a failed motor.
The default position is the defrost to make sure the windshield is always clear.
Someone will need to look behind the dash to see if all of the doors will move on demand.

Jun 27, 2012 | 2006 Acura TSX

1 Answer

I have a 2007 ford explorer, all of a sudden, the ac blows only through the defroster,and at my feet. It will not blow through the front vents. The ac blows cold.


the blend door actuator is bad. there about 70 dollars at ford. make sure you hook up the actuator and put the control on defrost before you bolt it on the air box or you will brake the blend door.

Jul 19, 2010 | 2007 Ford Explorer Eddie Bauer

1 Answer

My heater will only blow hot air out of the rear vents from the rear controls. The front vents only blow cold air. Is there a simple fix?


blend door or temp contrl switch is bad.

Section 12-02: Heating and Defrosting 1998 Windstar Workshop Manual
REMOVAL AND INSTALLATION Actuator Motors, Electric Temperature Blend Door
Removal
  1. Remove cassette storage box or center shelf unit, if equipped.
  1. Remove instrument panel ash receptacle (04810) by depressing service lever.
  1. Disconnect electrical harness connector from electric blend door actuator.


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  1. Remove three retaining screws.


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  1. Carefully pull electric blend door actuator outward and off A/C evaporator housing (19850) assembly.
Installation
  1. Follow removal procedure in reverse order.
  1. Air temperature control door shaft is keyed. Move door to properly insert electronic actuator shaft. Make sure the shaft is completely in and properly seated.

Jan 14, 2010 | Ford Windstar Cars & Trucks

1 Answer

2001 Aurora - blows only 'warm' air


Your problem is either a clogged heater core, or the air temp control blend door actuator, in order to check for a clogged core feel the heater core hoses in the eng compartment, they should both be hot, one a little hotter than the other, if they are the core is ok and the blend door actuator needs to be replaced.

Dec 28, 2008 | 1997 Oldsmobile Aurora

2 Answers

Heating system only blows out hot air through the vents


I would look at the air blend doors first, it sound like they are not working or your control in the dash is not working send a signal to them. they work by changing the air from hot to cold or in between.

Avalanche, Sierra And Silverado
  1. Remove the floor air outlet duct extension (1) from the floor duct (2). 0900c152801c9c8a.jpgRemove the floor air outlet duct extension (1) from the floor duct (2)
  2. Disconnect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  3. Remove the blend door actuator mounting screws from the HVAC module.
  4. Remove the blend door actuator as an assembly with the actuator cam. 0900c152801c9c8c.jpgRemove the blend door actuator mounting screws from the HVAC module
To install:
  1. Install the blend door actuator as an assembly with the actuator cam.
    1. Line up the heater/defroster valve lever with the blend door actuator cam slot.
    2. Line up the A/C valve lever with the blend door actuator cam
  2. Install the blend door actuator mounting screw to the HVAC module.
    1. Tighten the blend door actuator mounting screw to 14 inch lbs. (1.6 Nm).
  3. Connect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  4. Install the floor air outlet duct extension (1) to the floor air duct (2).
C/K Series
  1. Disconnect the electrical connector to the mode actuator that is located on the left side of the air distribution case.
  2. Remove the screws.
  3. Remove the adjuster links from the control lever.
  4. Remove the mode actuator.
  5. Adjust the mode actuator by completing the following steps:
    1. Connect the electrical connector to the actuator.
    2. Turn the ignition switch to the RUN position. Allow the self-positioning of the actuator.
    3. Turn the ignition switch to the OFF position.
    4. Remove the actuator from the electrical connection. 0900c152801c9c8d.jpgBlend door actuator-C/K Series
To install:
  1. Install the mode actuator.
  2. Install the screws.
  3. Install the adjuster links to the control lever.
  4. Connect the electrical connector.
  5. Test the circuit operation

Nov 27, 2008 | 2001 Chevrolet Silverado

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