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2005 chevy impala passenger side blows heat out continuously, driver's side works fine with heater & AC

Hi, My 2005 Impala has the heat blowing constantly from the passenger side -- no matter which settings are turned on or off. The driver's side works fine for everything; although when the AC is on, and I turn up the fan, heat pours out faster on the passenger side.

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  • Elayna Torkelson Jul 18, 2013

    I will definitely try this! Thank you, Elayna

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  • Cars & Trucks Master
  • 3,287 Answers

You may find a reset will solve this annoying problem. The problem you have is the GM heater control unit has lost it's calibration, which can happen from time to time. The way to reset it is, start your car and turn your heater off, and shut off the car, pull out the keys. Then with vehicle off, disconnect the battery, (or batteries if it has two). Let sit for 10 minutes, then re-connect battery. Get in and start the engine, DON'T touch anything, let the heater control unit re-calibrate for at least 40 seconds, (by the clock), then try turning on the heater.
Good luck!

Posted on Jul 18, 2013

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Posted on Jan 02, 2017

  • 491 Answers

SOURCE: 2005 Chevy Impala driver's side heat blows cold.

First....buy a drivers side air flow actuator at a auto parts place for dual zone heating/cooling.
(NAPA etc will have it.....or the dealer)
Open the glove compartment.....all the way....you may have to take the screws out at the bottom......look in at the heater assembly....look over to the left....you will see the two air flow actuators.
Look at the part you have and match it to the part on the heater assembly.
The actuator that is closest to the engine is the drivers side control.
Replace it.
Try your controls and check for heat and cooling on both sides.
The stepper motor in these actuators goes bad on quite a few...but over look that.....you have a great car,good for many miles of trouble free driving.


Posted on Nov 03, 2009

  • 93 Answers

SOURCE: Impala has dual climate control. AC blows cold on

with a dual climate control system, it is imperative for a proper refrigerant charge to be maintained. the symptom you describe is a possible indicator of low charge on the system. the ac evaporator core is closest to the right side of vehicle thereby making air feel cooler on that side, on the left side of the vehicle the cooled air has farther to travel and warms up from cabin air before it discharged from the vents. this is the most probable issue for your vehicle...however if the charge is accurate, the issue would be more so in the air temperature doors which is located deep inside the dash...i hope this helps...good luck!

Posted on Jun 11, 2009

  • 491 Answers

SOURCE: I drive a 2005 chevy impala.. everytime i turn on

Do you have separate drivers side and passenger heat controls?
If you do have this system,the common problem is the control unit s on the heater/a/c assembly. Can you adjust heat and cooling on one side?
Then the other side control unit is most likely bad.

Posted on Oct 20, 2009

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My heater is not working except on one side in my 2007 impala driver side it blows warm passenger cold


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This will help.Thanks.

Feb 27, 2012 | 2007 Chevrolet Impala LS Sedan New Cars

1 Answer

Chevy 2005 impala


sounds like you have a bad actuator motor that make temp go hot to cold

Feb 18, 2010 | 2005 Chevrolet Impala

1 Answer

My 2005 chevy impala blows heat on the passenger side and cold air on the drivers side. Please help! I have tried disconnecting the power fuse for ten minutes to recalibrate and nothing.


I have the same issue with my 2005 chevrolet impala. I took it to the shop and its the dual module control out on the driver side which will cost anywhere from $300.00 to $500.00 to get fixed.

Nov 13, 2009 | 2005 Chevrolet Impala

1 Answer

2005 Chevy Impala driver's side heat blows cold, but works on passenger side. Was told a vent is probably not opening to allow for the heat to get to the driver's side? Where can I locate this vent?


First....buy a drivers side air flow actuator at a auto parts place for dual zone heating/cooling.
(NAPA etc will have it.....or the dealer)
Open the glove compartment.....all the way....you may have to take the screws out at the bottom......look in at the heater assembly....look over to the left....you will see the two air flow actuators.
Look at the part you have and match it to the part on the heater assembly.
The actuator that is closest to the engine is the drivers side control.
Replace it.
Try your controls and check for heat and cooling on both sides.
The stepper motor in these actuators goes bad on quite a few...but over look that.....you have a great car,good for many miles of trouble free driving.


Nov 03, 2009 | 2005 Chevrolet Impala

1 Answer

The heater is only working on the passenger side in my 2005 impala. the driver side is blowing cold air. please help


Do you have dual zone heat and cooling controls?
If so......the drivers side air flow control unit on the heater assembly is not working.
It is mounted on the heater assembly and can usually be accessed through the glove compartment to change it.
The stepper motor on these units fails often.
This should be the problem on your car 99%...if you have a separate heat/cooling control for driver and passenger areas.

Oct 29, 2009 | 2004 Chevrolet Impala

1 Answer

I drive a 2005 chevy impala.. everytime i turn on the heater and the driver's side blows out cold air and the passenger side blows out heat.. can you please tell me what is wrong


Do you have separate drivers side and passenger heat controls?
If you do have this system,the common problem is the control unit s on the heater/a/c assembly. Can you adjust heat and cooling on one side?
Then the other side control unit is most likely bad.

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1 Answer

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GM Yuck! I'm surprised you haven't had a bad anti-theft system yet!

No heat is due to a bad heater core. Or the flap that directs the air inside the venting gets stuck in one position and you have to tear apart the whole dang thing to get to it.

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What stuff did you put in it? You might need a freon recharge.

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