Check the connections from the HVAC controls to the airbox blend and diverter doors.
Our reference only shows vehicles available in the U.S. I can't find anything on a 180SX.
December, 28, 2011 AT 8:51 PM
I'm sorry. My Sentra is a GXE, not a 180SX. Does that make a difference in how to fix the airflow problem?
December, 28, 2011 AT 9:10 PM
Probably not, but it sure does in what information I have available in my reference. See the image. Make sure the arm attached to the cable is moving when the mode control (defrost/vent/heater) is moved. If the lever is moving correctly, it's probably broken inside the airbox.