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Dave Nova
Dave Nova, ASE Certified Tech
Category: Car
Satisfied Customers: 19452
Experience:  ASE Master Certification. GM World Class Certification
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203 ascenders: air flow sensor/module problem

Customer Question

203 Ascender
A/C only blowes air out defrost and floor....not vents facing driver or passenger. Is this an air flow sensor/module problem?
Submitted: 6 years ago.
Category: Car
Expert:  Dave Nova replied 6 years ago.
Hello and thank you for using justanswer.

The problem you are experiencing is due to a failed a/c mode actuator. This is an electric actuator that is on the side of the heater case. This actuator moves the blend doors to direct the airflow throught eh defrost, floor, and dash vents. Replacing the actuator will fix your problem. This actuator can be accessed from under the drivers side of the dash.

Remove the floor outlet duct coming out of the left side of the heater case, then remove the two screws securing the mode actuator (3).

Dave Nova and 5 other Car Specialists are ready to help you
Customer: replied 6 years ago.
A couple of weeks ago, I asked for help in solving a problem concerning an '03 Isuzu Ascender. I was advised to replace the air flap acuator. The instructions to do this were incomplete. Once panel and air duct were removed from below steeing wheel there was very limited space to work with I could see the actuator however I could not access it. There was a metal pate ubder the steering wheel a s well as the forward metal part if console inthe way. Do you have directions with pictures concerning how to do this?
Thank you,
Lint Holsey
Expert:  Dave Nova replied 6 years ago.
The metal plate below the steering column can be removed by removing the nuts securing it.

Normally we do not remove the center console, you just use an extension with a swivel end and the correct size socket to remove the one hard screw.