A/C blowing hot only on the passenger side

Good afternoon Chris,

Okay, so what I got out of this is that you replaced the right hand side blend door actuator and the Defrost/Panel/Floor blend door actuator (center of dash).

The clicking you refer to is a common thing when the potentiometers wear out on the blend door actuators. These tell the HVAC control unit what position the doors are in. Without them they are lost and try to keep moving the door past where it was intended to stop.

It sounds to me like you said the clicking went away after the units were replaced. Can you give me a rundown on what is happening now?

Lets start with the drivers position. Does all work normal there? Hot when expected, cold when expected?

Next is the Climate Control set to Dual or Single?

If it is set to dual, are you able to change the Passenger Temperature hotter/colder to make any difference at all?

Does your Defrost/Panel /Floor modes work or are they having problems as well?

Regards
Jon

Good afternoon,

The passenger side blend door actuator is on top of the heater box in the center of the dash.

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

I attached pictures and a procedure for you.

Make sure you follow the calibration sequence at the end.

Roy

Removal and Installation

Remove the Audio Front Control Module (ACM) . For additional information, refer to Section 415-00 .
While pushing the glove compartment door tab, position the glove compartment downward.
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Detach the 2 wire harness pin-type retainers and position the wire harness aside.
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NOTE: The forward Right Hand (RH) temperature blend door actuator screw can be removed with a combination wrench. With one hand working through the ACM opening, hold the top end of the combination wrench. With the other end of the combination wrench pointing away (toward the right front corner of the vehicle), and with the other hand working through the glove compartment opening, the combination wrench can be manipulated.

Remove the 2 RH temperature blend door actuator screws.
Detach the temperature blend door actuator.
Disconnect the temperature blend door actuator electrical connector.
Remove the temperature blend door actuator.
NOTICE: The ignition key must be off when replacing the actuator. Energizing the actuator before installation will cause the part to become positioned incorrectly and proper orientation will be lost. Incorrect actuator operation will result.

To install, reverse the removal procedure.
NOTE: The purpose of the module actuator position calibration is to allow the Heating Ventilation Air Conditioning (HVAC) module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove Body Control Module (BCM) fuse 46 for at least one minute.
NOTE: When the ignition switch is switched to the ON position, the HVAC module will initialize and calibrate the actuators. Calibration of the actuators will take approximately 30 seconds.

Reinstall BCM fuse 46. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct mode door actuator operation.

You are welcome.

Always glad to help.

Roy

The only thing you should notice is after you install the fuse and turn on the key, you should hear the mode doors move back and forth.

Roy

Okay, when you replaced the blend door actuator, did you move the door by hand and see if you had heat? You need to make sure the mode door itself moves.

Roy