Noise from under dash (HVAC/heater), please help identify (video)
Thread Starter
Junior Member
Joined: Aug 2010
Posts: 74
Noise from under dash (HVAC/heater), please help identify (video)
Hello!
Please help identify the problem with my Maxima's HVAC unit.
The noise has persisted for several years, worsening each season.
NOTE: I have changed the actuator for the passenger side already to no avail. In the video, all functions performed worked as planned (heat/cool,modes all function normally). The issue seems to be with cabin vs fresh air.
Thank you!
Please help identify the problem with my Maxima's HVAC unit.
The noise has persisted for several years, worsening each season.
NOTE: I have changed the actuator for the passenger side already to no avail. In the video, all functions performed worked as planned (heat/cool,modes all function normally). The issue seems to be with cabin vs fresh air.
Thank you!
Junior Member
Joined: Jun 2011
Posts: 27
From: Quebec (QC) CANADA
I checked the ATC section of the service manual.
On page ATC-34 there is a schematic which tells you where are located the different motors.
What I will do is to access each motor to find the one which makes noise. If I found one I will unplug it to see if the noise goes away.
Because of the noise location on your video, I will first check 2 of them: the "air mix door motor" on the passenger side and the blower motor.
On page ATC-34 there is a schematic which tells you where are located the different motors.
What I will do is to access each motor to find the one which makes noise. If I found one I will unplug it to see if the noise goes away.
Because of the noise location on your video, I will first check 2 of them: the "air mix door motor" on the passenger side and the blower motor.
Member
Joined: Mar 2003
Posts: 285
From: Louisiana
Hello!
Please help identify the problem with my Maxima's HVAC unit.
The noise has persisted for several years, worsening each season.
NOTE: I have changed the actuator for the passenger side already to no avail. In the video, all functions performed worked as planned (heat/cool,modes all function normally). The issue seems to be with cabin vs fresh air.
https://youtu.be/lg24IeAepK0
Thank you!
Please help identify the problem with my Maxima's HVAC unit.
The noise has persisted for several years, worsening each season.
NOTE: I have changed the actuator for the passenger side already to no avail. In the video, all functions performed worked as planned (heat/cool,modes all function normally). The issue seems to be with cabin vs fresh air.
https://youtu.be/lg24IeAepK0
Thank you!
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