Blend door actuator

[Big shot tazzo]

May be a silly question . where is the blend door actuator located ? I have a 09' sedan 4.6 and my A/C is blowing hot on one side

 

[Ducatislave]

2009 Hyundai Genesis 4.6 V8 - 4.6L 4627cc GAS MFI Vin F - 4 Valve DOHC

HVAC Components

A/C Control Module, Field Effect Transistor, M07-A, M07-B, M07-C, M24, M66, Passenger Temperature Actuator
Body Components

2009 Hyundai Genesis 4.6 V8 - 4.6L 4627cc GAS MFI Vin F - 4 Valve DOHC

Instrument Panel Components

Console Temperature Actuator, Driver Temperature Actuator, M15, M16, M46, M65, Mode Actuator
Body Components

 

[Big shot tazzo]

Much appreciated !!

 

[DSXMachina]

Is it actually blowing "hot" or just ambient air temperature? If ambient, and it's the driver's side that's warm, then the problem may be that you are low on refrigerant.

 

[Big shot tazzo]

Is it actually blowing "hot" or just ambient air temperature? If ambient, and it's the driver's side that's warm, then the problem may be that you are low on refrigerant.

It’s blowing hot on the drivers side

 

[Buck Turgidson]

My 2012 Genesis sedan (3.8L) blows ambient air for the first couple minutes after startup (Arizona ambient temp: 100-110F). After a while, it cools normally and keeps the cabin good and cold. I'm not concerned about the refrigerant system. If it were an older car, I would diagnose a vacuum reservoir for the blend door that was leaking down overnight. However, I'm pretty sure there is no such reservoir. So why won't the blend door move to the "full AC position" for 2-3 minutes after a "cold" startup?

 

[EdP]

My 2012 Genesis sedan (3.8L) blows ambient air for the first couple minutes after startup (Arizona ambient temp: 100-110F). After a while, it cools normally and keeps the cabin good and cold. I'm not concerned about the refrigerant system. If it were an older car, I would diagnose a vacuum reservoir for the blend door that was leaking down overnight. However, I'm pretty sure there is no such reservoir. So why won't the blend door move to the "full AC position" for 2-3 minutes after a "cold" startup?

More information may help. Did it always do this or just start recently? When you say "cold" startup, how long has it been off? Minutes? Hours? Once the system is off it does take some time to get the refrigerant flowing and blowing cool air.

If you set the system to blow out the bottom vents are they hot also?

 

[Buck Turgidson]

It happens after the car has been parked for several hours. It has ALWAYS done this because I have owned the car for 60 days. I understand this is a common Hyundai problem 2012 Hyundai Genesis A/C Not Cold For Several Minutes

Every car I have owned - EVERY car - blows cold immediately upon startup. The compressor clutch is engaged, the cabin blower fan is operating normally, it just doesn't blow cold.

 

[joegr]

I have seen several report that the solution to slow cooling at startup is to replace the solenoid valve in the AC compressor, or the compressor itself (new compressor comes with new valve). This does require refrigerant recovery, evacuation, and recharge.

 

[carls22]

May be a silly question . where is the blend door actuator located ? I have a 09' sedan 4.6 and my A/C is blowing hot on one side

I had that problem with my 2012 Genesis rspec i changed the blend door actuator on the driver side but didnt solve the problem So checked the freon it was low I added one can solved the problem blowing cold on both sides hope this help.

______________________________

Help support this site so it can continue supporting you!

 

[shahhere]

I had that problem with my 2012 Genesis rspec i changed the blend door actuator on the driver side but didnt solve the problem So checked the freon it was low I added one can solved the problem blowing cold on both sides hope this help.

Not sure if you or anyone is around as I think this forum is dying but I am not getting any air in front to defog and when set to front the center 2 vents blow nothing, but the sides are blowing air and nothing on the windshield......not sure what I need to troubleshoot.

The air coming out is whistling so I am assuming a flap is blocked or one of these servos but no idea where it is or how to tackle this?

Shahhere

 

[taber]

Not sure if you or anyone is around as I think this forum is dying but I am not getting any air in front to defog and when set to front the center 2 vents blow nothing, but the sides are blowing air and nothing on the windshield......not sure what I need to troubleshoot.

The air coming out is whistling so I am assuming a flap is blocked or one of these servos but no idea where it is or how to tackle this?

Shahhere

Hi did you ever figure this out? I have the same problem.

 

[thenewguyy]

Not sure if you or anyone is around as I think this forum is dying but I am not getting any air in front to defog and when set to front the center 2 vents blow nothing, but the sides are blowing air and nothing on the windshield......not sure what I need to troubleshoot.

The air coming out is whistling so I am assuming a flap is blocked or one of these servos but no idea where it is or how to tackle this?

Shahhere

Hi did you ever figure this out? I have the same problem.

Did you guys ever resolve this? I have this exact issue happening, the whistling when i put the front defrost on, all the other vents work fine, temperature works fine as well, just the front barely has any air coming out

 

[jep604]

Please see a new post coming in a few minutes on "Hot air on pax side and cold air on driver's side"

 

[rmoody]

Please see a new post coming in a few minutes on "Hot air on pax side and cold air on driver's side"

Where was this post at? I’m currently having issues with hot air blowing on drivers side but cold ac working on passengers side. I noticed that the actuator was working on the passengers side but I got a little lost when I noticed there were two actuators on the drivers side. The one that was lower and right next to the gas pedal was working. However, I pulled it out to open it up and see. Rookie mistake because when I installed it back on the motor and everything is working but I don’t think I put the arm back in correctly. Anyone know of what I may have done? I can hear the motor trying to work but now the arm isn’t moving when I reinstalled it.

I did notice however, that the actuator that sits up higher (right behind the steering wheel), isn’t turning. Want to get this fixed but need to make sure I reinstall the lower actuator properly. Would my improper reinstallation of the lower actuator affect the actuator up top or should it be having movement regardless? When I change ac temp there’s no movement on the actuator that’s higher up.

 

[jep604]

Where was this post at? I’m currently having issues with hot air blowing on drivers side but cold ac working on passengers side. I noticed that the actuator was working on the passengers side but I got a little lost when I noticed there were two actuators on the drivers side. The one that was lower and right next to the gas pedal was working. However, I pulled it out to open it up and see. Rookie mistake because when I installed it back on the motor and everything is working but I don’t think I put the arm back in correctly. Anyone know of what I may have done? I can hear the motor trying to work but now the arm isn’t moving when I reinstalled it.

I did notice however, that the actuator that sits up higher (right behind the steering wheel), isn’t turning. Want to get this fixed but need to make sure I reinstall the lower actuator properly. Would my improper reinstallation of the lower actuator affect the actuator up top or should it be having movement regardless? When I change ac temp there’s no movement on the actuator that’s higher up.

See Page 9 dated Jan 8, 2023. Might help? 3 actuators on driver's side.