Drivers side AC vents blow hot?

I feel you are correct and it is the door. The blend doors are mounted on the heater box near the heater core under the dash. this guide will show you how it fix it.

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

Please run down this guide and report back.

The driver side air temperature control is located behind the dashboard and that is why they are charging so much because of the labor involved to pull back the dash.

No that would be a separate issue. Make sure both controls are switched off. The one you control up front and the rear one.

The front control will overide the rear controls.

If you mean installing the electric connector then no. If you apply power manually yes you can damage it.

Hey RICHARD,

Just move the door pivot manually and install the actuator. Here is a guide that can help.

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

Please let us know what you find so it will help others.

Best, Ken

You are going to have to see if temp actuator for that side is getting power if it is not then it will have to be scanned for codes to see if it is control head or actuator. A local garage will have to do that. A panel must be pulled down to access it see pics.

Hey Richard,

It sounds like you have one of two problems, either you have a rear temperature sensor that is bad or the controller is shorting out.

Glad you could get it fixed please use 2CarPros. Com anytime we are here to help

Best, Ken

Good afternoon,

It sounds like the blend door motor for the heat has failed.

I attached the procedure with some pictures for you to view. The console has to be removed to access the actuator.

Roy

Temperature Valve Actuator Replacement - Left Side

Removal Procedure Notice:In order to avoid actuator damage, do not apply power to the actuator when it is not installed in the HVAC module.

1. Remove the center console, if equipped. See: Console > Removal and Replacement
2. Remove the instrument panel (I/P) insulator panel. See: Dashboard / Instrument Panel > Removal and Replacement

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

Installation Procedure

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

Notice:Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the screws to the left air temperature actuator (2).

Tighten
- Tighten the screws to 2 Nm (18 lb in).

3. Install the electrical connector (1) to the left air temperature actuator (2).
4. Install the I/P insulator panel. See: Dashboard / Instrument Panel > Removal and Replacement
5. Install the center console if equipped See: Console > Removal and Replacement
6. Reprogram the left air temperature actuator. See: Heating and Air Conditioning > P

A common concern, that usually ends up being a faulty actuator. Remove the HVAC/ECAS fuse from the underhood fuse block for 10 seconds or so. Install the fuse, turn the key on without touching any controls for a minute or so. See if the function resumes to normal. There is also a reprogramming that can be done to address this concern. It is in a GM service bulletin, included below.

#06-01-38-003: Intermittent Ticking Noise from I/P, Poor A/C Performance, HVAC DTCs B0229, B0414, B0424, B3770, (Reprogram HVAC Control Module) - (Apr 27, 2006)

Subject:

Intermittent Ticking Noise from I/P, Poor A/C Performance, HVAC DTCs B0229, B0414, B0424, B3770 (Reprogram HVAC Control Module)

Models:

2004-2006 Cadillac Escalade Models

2004-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2004-2006 GMC Sierra Models, Yukon Models

with Air Conditioning (RPOs CJ2, CJ3)

Condition

Some customers may comment on one or more of the following concerns:

â€

Intermittent ticking/clicking noise from the instrument panel.

â€

Recirculation mode does not work or Air Conditioning (A/C) system performance is poor during high ambient temperatures.

â€

Unable to control the driver side temperature.

â€

Unable to control the passenger side temperature.

â€

Unable to change the front system modes.

Cause

This condition may be caused by the Heating, Ventilation and Air Conditioning (HVAC) actuators that may hunt for the correct commanded position. This cycling may cause a clicking or ticking noise.

An overtravel of the HVAC system control doors may cause one or more of the concerns listed above. If an overtravel occurs, a Diagnostic Trouble Code (DTC) will be set, and the door will go to a preset default position. When a system door defaults, that door will stay at the default position until the DTC is cleared. After the DTC is cleared, the door will operate properly until the overtravel condition re-occurs.

The following table lists the HVAC system doors and the DTC associated with it.

System Door

Overtravel DTC

Air inlet door (recirculation door)

B0229

Left temperature door

B0414

Right temperature door

B0424

Front system mode door

B3770

Correction

Technicians are to perform the normal diagnostic procedures in SI for these concerns. If diagnostics show that the HVAC system door(s) travel below 5 counts (out of the lower range) or above 250 counts (out of the upper range), then update the software calibrations in the HVAC control module. The new calibrations were made available to dealerships as part of TIS2000 incremental satellite update version 2.5, which was broadcast to dealers in February 2006.

The new calibrations have been updated to compensate for the actuator overtravel condition, the actuator hunting and the ticking/clicking noises. The new calibrations effectively eliminate the codes listed above, the default position of the doors associated with the DTCs and opens up the feedback position value. The new calibrations should not be used unless the vehicle has one or more of the customer concerns listed above or a DTC listed above has been set. The new calibrations will not correct any other DTC or A/C system performance concern.