Drivers or passengers side of the vents are not working for AC or heater?

There are three one for temp and one for each side. Prior to replacing the actuators pull the hvac fuse inside truck with key on for 60 seconds it may reset them and get it working. It should be scanned for codes as well to see if heater control is sending power to the actuators. #4 in pic is for right side 6 is mode like defrost vent etc.

Actually no that is the way it sits in the truck. The view in this pic is the bottom an dthe actuator pointed to is for the drivers side for temp.

Hi and thanks for using 2CarPros.

If you still get air flow through the left but no heat, I have a feeling the mouse chewed the wiring to the blend air door actuator on that side. That is the first thing I would check.

Here are general directions for replacing the actuator:

https://www.2carpros.com/articles/replace-blend-door-motor

Here are the specific directions for the left side blend door actuator. Picture 1 shows location.

AIR TEMPERATURE DOOR REPLACEMENT - LEFT (DELPHI)

REMOVAL PROCEDURE

Picture 1

1. Remove the HVAC module.
2. If equipped remove the heat stakes (1) from the HVAC module (2) with a screw driver and a hammer.

Picture 2

3. If equipped remove the HVAC module assembly screws.
4. Remove the upper HVAC module case (3) from the lower HVAC module case (10).
5. Remove the air temperature separator plate (5) from the lower HVAC module case (10).
6. Remove the left temperature door (11) from the lower HVAC module case (10).

INSTALLATION PROCEDURE

Picture 2

1. Install the left temperature door (11) to the lower HVAC module case (10).
2. Install the air temperature separator plate (5) to the lower HVAC module case (10).
3. Install the upper HVAC module case (3) to the lower HVAC module case (10).

NOTE: Refer to Fastener Notice in Service Precautions.

IMPORTANT: For every heat stake removed ensure that you install a screw.

4. Install the screws to the HVAC module assembly.

Tighten
Tighten the screws to 1.6 N.m (14 lb in).

5. Install the HVAC module.8

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This is the first thing I would check. Let me know if this helps or if you have other questions. If you need additional information, please let me know if this has automatic or manual temperature control and dual climate control. I am basing you problem on a mechanical dual climate system, which most are.

Take care,
Joe

That is an interesting one. The blend air door actuator is electric, so it shouldn't matter if the engine is already running.

Does the vehicle have duel climate control? If so, does it happen to both sides of the vehicle?

What I suggest is this. You may have a weak or bad blend air door actuator. I would remove the actuator and see if it responds when normally it wouldn't. At least that way we can determine if the actuator is working and if not, if it is getting power.

Let me know about that. Also, here is a link that shows in general how a blend air door actuator is replaced:

https://www.2carpros.com/articles/replace-blend-door-motor

Here are directions specific to your vehicle. The attached pictures correlate with the directions.

REMOVAL PROCEDURE
1. Remove the IP insulator.

2. Disconnect the electrical connector (8) from the air temperature actuator (9).
3. Remove the air temperature actuator retaining screws.
4. Remove the air temperature actuator.

INSTALLATION PROCEDURE

1. Install the air temperature actuator.
2. Install the air temperature actuator retaining screws.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the screws to 1.6 N.m (14 lb in).
3. Connect the electrical connector (8) to the air temperature actuator (9).
4. Install the IP insulator.

Check out the diagrams (Below). Please let us know what happens.

Hi and thanks for using 2CarPros.

Here are the directions for removal of the instrument panel removal and replacement. Picture 1 correlates with these directions.

Instrument Panel (I/P) Assembly Replacement

Removal Procedure

Caution: Refer to Battery Disconnect Caution in Service Precautions.

Caution: Refer to Restraint System Service Precautions in Service Precautions.

1. Remove the instrument panel (I/P) trim panel.
2. Remove the center console, if equipped.
3. Disconnect the negative battery cable.
4. Remove the driver side knee bolster.
5. Remove the lower I/P trim panel.
6. Remove the passenger side airbag module.
7. Remove the radio.
8. Remove the HVAC control.
9. Remove the accessory switch housing.
10. Remove the left air louver housing.
11. Remove the steering column.
12. Remove the communication interface module (CIM), if equipped.
13. Remove the remote control door lock receiver module, if equipped.
14. Remove the data link connector from the I/P.
15. Remove the park brake release lever from the I/P.
16. Remove the instrument panel cluster (IPC).
17. Remove both front window air ducts from the I/P assembly.
18. Remove the harness from the I/P.

Picture 1
19. Remove the I/P assembly retaining bolts (3) and nuts (4).
20. Remove all harness hold down retainers from the I/P assembly.
21. Remove the I/P assembly from the vehicle.

Installation Procedure

1. Install the I/P assembly to the vehicle.
2. Install the harness hold down retainers to the I/P assembly.

Picture 1
3. Install the I/P assembly retaining bolts (3) and nuts (4).
Ensure the wire harness is routed to all of the openings.
4. Install the harness to the I/P.
5. Install both front window air duct to the I/P assembly.
6. Install the IPC assembly.
7. Install the park brake release lever to the I/P.
8. Install the data link connector to the I/P.
9. Install the remote control door lock receiver module, if equipped.
10. Install the CIM, if equipped.
11. Install the steering column.
12. Install the left air louver housing.
13. Install the accessory switch housing.
14. Install the HVAC control.
15. Install the radio.
16. Install the passenger side airbag module.
17. Install the lower trim panel.
18. Install the driver side knee bolster.
19. Connect the negative battery cable.
20. Install the center console, if equipped.
21. Install the I/P trim panel.

_________________________

Here are the directions for the left actuator replacement.

AIR TEMPERATURE ACTUATOR REPLACEMENT - LEFT

REMOVAL PROCEDURE
1. Remove the I/P insulator panel.

Picture 2
2. Disconnect the electrical connector (1) from the left air temperature actuator (2).
3. Remove the screws from the left air temperature actuator (2).
4. Remove the left air temperature actuator (2) from the HVAC module assembly (3).

INSTALLATION PROCEDURE

Picture 2
1. Install the left air temperature actuator (2) to the HVAC module assembly (3).
2. Install the screws to the left air temperature actuator (2).

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the screws to 2 N.M (18 lb ft).

3. Install the electrical connector (1) to the left air temperature actuator (2).
4. Install the I/P insulator panel.
5. Reprogram the left air temperature actuator. Refer to Re-Calibrating Actuators.

____________________________________________________________

Let me know if this helps or if you need additional information.

Take care,
Joe

Good evening,

It is under the dash, left side. I attached a picture for you and the procedure below.

You can call a parts store for the part number.

Roy

AIR TEMPERATURE ACTUATOR REPLACEMENT - LEFT

REMOVAL PROCEDURE
1. Remove the I/P insulator panel.

ImageOpen In New TabZoom/Print

2. Disconnect the electrical connector (1) from the left air temperature actuator (2).
3. Remove the screws from the left air temperature actuator (2).
4. Remove the left air temperature actuator (2) from the HVAC module assembly (3).

Hi,

If the change only happens on the driver's side, chances are the is an issue with what is called a blend air door actuator. There is one for the left side of the vehicle and one for the right side. It sounds like the left is failing.

Here is a link that shows in general how one is replaced:

https://www.2carpros.com/articles/replace-blend-door-motor

____________________________

Here are directions specific to this vehicle. Note that these directions are specific to a manual AC system and not automatic climate control. If you have the automatic system, let me know.

____________________________

2005 Chevy Truck Silverado 1500 2WD V6-4.3L VIN X
Air Temperature Actuator - Left
Vehicle Heating and Air Conditioning Air Door Actuator / Motor Service and Repair Procedures HVAC System - Manual Air Temperature Actuator - Left
AIR TEMPERATURE ACTUATOR - LEFT
AIR TEMPERATURE ACTUATOR REPLACEMENT - LEFT

REMOVAL PROCEDURE
1. Remove the I/P insulator panel.

pic 1

2. Disconnect the electrical connector (1) from the left air temperature actuator (2).
3. Remove the screws from the left air temperature actuator (2).
4. Remove the left air temperature actuator (2) from the HVAC module assembly (3).

INSTALLATION PROCEDURE

pic 2

1. Install the left air temperature actuator (2) to the HVAC module assembly (3).
2. Install the screws to the left air temperature actuator (2).

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the screws to 2 N.m (18 lb ft).

3. Install the electrical connector (1) to the left air temperature actuator (2).
4. Install the I/P insulator panel.
5. Reprogram the left air temperature actuator. Refer to Re-Calibrating Actuators.

____________________________________

Please note that I am basing this on the idea that the AC continues to work on the passenger side. What I would suggest is to remove the actuator and see if it responds when the temperature is changed. Also, make sure nothing is loose or damaged causing it to move.

Let me know if this helps or if you have other questions.

Take care,
Joe

Hello,

We have an excellent guide for this.

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know what happens.

Cheers, Ken

The passengers side is the bottom one.

Please let us know what happens.

Cheers, Ken

Do not forget to pull HVAC fuse inside truck once it is replaced so it will reset.

The fuse for HVAC inside the truck resets the actuators and must be done after an install.