Climate control

Tiny
DSFDSF
  • MEMBER
  • 2010 FORD FUSION
  • 2WD
  • AUTOMATIC
  • 116,000 MILES
When I turn on the heater/defroster, it blows warm air on the driver side but cold air on the passenger side.
Saturday, February 2nd, 2019 AT 11:19 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi and thanks for using 2CarPros.

If you have dual climate control, it sounds like the blend air door for the passenger side has failed. These doors (one for left and one for right with dual climate) control the air temperature entering the passenger compartment.

What you will need to do is check the actuator for the right side. See if it is moving when you change the temperature for the passenger side.

If you determine it is bad, here is a link that shows in general how one is replaced:

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

Here are the directions specific to your vehicle's right side actuator replacement. The attached pictures correlate with these directions.

___________________________________

Temperature Blend Door Actuator - RH, Dual-Zone EATC

See Picture 1

See Picture 2

Removal and Installation

1. Remove the passenger air bag module. For additional information, refer to Restraint Systems. See: Air Bag > Service and Repair

2. Disconnect the RH temperature blend door actuator electrical connector.

3. Remove the 2 RH temperature blend door actuator bracket screws.

4. Detach the wire harness from the RH temperature blend door actuator bracket.

5. Remove the RH temperature blend door actuator.

6. To install, reverse the removal procedure.

7. NOTE: The purpose of the module actuator position calibration is to allow the HVAC module to reinitialize and calibrate the actuator stop points. To carry out calibration, carry out the following steps.

Remove the Smart Junction Box (SJB) fuse 15 for at least one minute. See: Power and Ground Distribution > Electrical > Power Distribution Diagrams

8. 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 SJB fuse 15. Turn the ignition switch to the ON position and wait 30 seconds before verifying correct DEFROST/PANEL/FLOOR operation.

______________________________________________

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

Take care,
Joe
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Saturday, February 2nd, 2019 AT 9:27 PM
Tiny
DSFDSF
  • MEMBER
  • 1 POST
I have a single control unit. Driver sides blows warm but not hot like it use to and passenger sides blows nothing but cold air. The two vents in the middle above the radio left one blows warm, right one blows cold.
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Friday, February 15th, 2019 AT 6:44 PM

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