How manyA/C Heater Blend Door Actuators are on a 89 Caprice?

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2004 Buick Century A/C Heater Blend Door Actuator

AutoZone https://www.autozone.com > buick > century > 2004

Dorman HVAC Door Actuator 604-107 · Part # 604-107 · SKU # 575021 · limited lifetime warranty Limited-Lifetime Warranty · 4.8. (17). 4.8 out of 5 stars. 17 ...

NOS 2004 BUICK CENTURY HEATER BLEND DOOR ...

eBay https://www.ebay.ca > ... > HVAC Vent Actuators

NOS 2004 BUICK CENTURY HEATER BLEND DOOR ACTUATOR 52404369 HVAC ; Breathe easy. Returns accepted. ; Fast and reliable. Ships from United States. ; Condition. New ...

Buick Century for HVAC Vent Actuators for 2004

eBay https://www.ebay.ca > ... > HVAC Vent Actuators
Dorman 604-107 HVAC Air Door Actuator fits Buick Century · C $42.80 ; 2 Heat Heater A/C Fan Air Vent Blend Door Actuator for Chevy GMC Pickup 15-72971 · C $46.84 ...

2004-2005 Buick Century Air Flap Actuator - DIY Solutions ...

Parts Geek https://www.partsgeek.com > Buick Parts > Century Parts
HVAC Heater Blend Door Actuator Set 2 Piece Set - 2004-2005 Buick Century - DIY Solutions 17810-02555053. Review Fitment Notes. Part Number: 17810-02555053.
US$47.95

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that is real easy , but the tests take skill sets.

1. the drive motor is bad, (actuator )
2. the wrong actuator used or installed wrong.
3. the controller to it is bad.
4. the blend door is jammed. (we turn it by hand to learn that)

stuck in heat mode, blocking AC. cool. sure.
a very common problem
some after marked actuators are junk, is common.
scan the OBD2 port for HVAC errors yet?
check all fuses first?



https://www.rockauto.com/en/catalog/ford,2010,fusion,3.5l+v6,1444313,heat+&+air+conditioning,heater+air+door+actuator,10721



Try motorcraft or SMP brands, on this car. SMP is what I use.

a JURYRIG:
now one skill lots of DIY guys do even all hot summer
they remove the blend door actuator and then hand spin it
to full closed ,casing max COOL to happen and does.
then keep it there somehow, if will not stay there until winter.
I call it the hillbilly fix. (with love )
motor craft says
(get door A closed) receirc
get B , bend set to block heater core
get C mode as you want, dash/vent/floor.
B can be forced on some cars easy,
the bend door has axle shaft and and adaptor cupling on some
that make it easy to hand turn the axle and to even bailing wire hold it if need be..
or dig my hack #2
take the old actuator and rip it all apart and jam it to cold.
then put it back in, with cold max, HACKED.
and last hint #1
some AC the Actuator must relearned. as the service manual so directs.

Not sure if this will help.
I have changed a couple blend door actuators, my newer cars were controlled electrical. My Safari was controlled with vacuum line. I could not find where yours is for sure but all that I have changed were behind the glove box and there were two actuators (one on left and the other to the right of the glove box) one was blend door. the last one I changed was a Chrysler 200 it was behind the glove box on the right. The video below FORD is behind glove and to the left side.
How To Install Replace Air Temperature Door Actuator Explorer Mountaineer 98-01 1AAuto.com
https://www.youtube.com/watch?v=g-36aM360V8

Could be the blend door is not opening/uncovering the heater core to let the heat in. Most likely is the problem. You need to be sure that actuator motor is working to open the main blend door. It's vacuum actuated so be sure your getting vacuum to all the connections and lines from the engine to the actuators.

How To Install Replace AC Heater Temperature Actuator ...

? 4:40
https://www.youtube.com/watch?v=mVP09M7hLB4
Jul 21, 2014 - Uploaded by 1A Auto Parts
http://www.1aauto.com/temperature-blend-door-actuator/i/ ... To Install Replace AC Heater Temperature Actuator 2000-05 ChevyMonte Carlo.

2006 Monte Carlo: Blend Door Actuator Replacement ...

? 2:19
https://www.youtube.com/watch?v=_B17o-Ljhfs
Mar 31, 2015 - Uploaded by Adam Strojny
In this video I will show you guys how to replace the actuators behind the glove compartment that where causing ...

Chevy Blend Door Actuator Replacement - Part 3 - YouTube

? 12:26
https://www.youtube.com/watch?v=1q9ugwlqDoo
May 14, 2013 - Uploaded by Dan Abbott
My final step to replacing the blend door actuator. ... Thanks for the video, need to do this on my 04 monte carlo ss, went to use the heat today .... 2003 Chevy Suburban AC-heater air direction problem.mov - Duration: 1:36. by ...

Blend air door actuator (temp)on left side of heater box near the gas pedal below it may be the mode door & passenger side has a temp door actuator for that side.

First check your coolant level. If the coolant system is full, then it is probably the passage doors inside the heater/AC case not operating properly. A door or its actuator has a malfunction. Most actuators are vacuum controls, although some are electric motor operated. Turn Heater on and set temp. control on high-this should cause the actuators to respond by opening some inner doors. So when you turn the blower on, air is forced across the heater core (the little coolant filled "radiator" in the case), and warm air comes out the vents. Watch or listen for the actuators to respond when you use the heater controls. There may be several actuators on the heater case, situated all around, but they are on the outside of the case, right near the inner door they operate.

I believe that on the climate controled cars, the heater core always has a supply of coolant, instead the car uses a blend door to keep air (A/C or heater depending on the setting you choose) from passing into the passenger compartment. If you have a problem, you should check to make sure that blend door is operating.