Jump to content

Intermittent Whirring Dashboard Noise


TARPON

Recommended Posts


It is usually the HVAC system's servo motors hunting for position. Most folks describe it as a "bubbling" sound. Search this forum using "servo motor noise" as your key phrase and you'll find plenty of information on it....

Link to comment
Share on other sites

It's the little geribles in the cage up under the dash. They get restless after a while... least that's what it sounds like. It is indeed likely the servo motor(s) going bad. What I discovered is the motor on the lowest 1 gets weak and can't get the "over-center spring" over center. It doesn't do it in any of the other positions because it only has to try and "over-center" that spring in one mode position. You can get rid of the noise if you want to, but it may not blow out of the center dash position, or you can put it in the position you want and unplug it. Neither are ideal choices but they WILL get rid of the noise.

Link to comment
Share on other sites

It's the little geribles in the cage up under the dash. They get restless after a while... least that's what it sounds like. It is indeed likely the servo motor(s) going bad. What I discovered is the motor on the lowest 1 gets weak and can't get the "over-center spring" over center. It doesn't do it in any of the other positions because it only has to try and "over-center" that spring in one mode position. You can get rid of the noise if you want to, but it may not blow out of the center dash position, or you can put it in the position you want and unplug it. Neither are ideal choices but they WILL get rid of the noise.

thanks for your response

Link to comment
Share on other sites

It is usually the HVAC system's servo motors hunting for position. Most folks describe it as a "bubbling" sound. Search this forum using "servo motor noise" as your key phrase and you'll find plenty of information on it....

thanks for your response.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Forums


News


Membership