2003 Hyundai Elantra Q&A
2003 Hyundai Elantra Question: Heater vent.
Hello, Your Elantra has small electric motors that control the airflow to all the different dashboard vents. These motors are controlled by the A/C Control Panel, so there may be an issue with the A/C panel, electrical wiring or one of the motors themselves. A shop should check for any diagnostic trouble codes and diagnose accordingly, and also have them check for any technical service bulletins from Hyundai related to this issue. Good Luck, let us know what you find out. - Bret Bodas
Replaced AC/Heater control unit and cabin filter. AC blows strong out of defroster vents. I get low volume of air out of dashboard vents.
My 2003 Hyundai Elantra's blower started making a "rattling" noise, but heat worked fine, that was 3-4 weeks ago. Next, the heat would blow hot, then cold, then hot, 2-3 weeks ago. Now, I can't cha...