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-   -   Whatís this sound? Heater A/C related (https://67-72chevytrucks.com/vboard/showthread.php?t=826203)

1974StepSide 09-24-2021 10:22 PM

Whatís this sound? Heater A/C related
 
https://twitter.com/biggmoe/status/1...923069955?s=21https://twitter.com/biggmoe/status/1441587117923069955?s=21

1996 Tahoe just started making this sound this morning. Itís coming from the passenger side under dash area. I posted a video on the link above. Initially thought it could be a blend door actuator, but itís so loud.
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Palf70Step 09-27-2021 06:15 AM

Re: Whatís this sound? Heater A/C related
 
Probably a heater vent door actuator (or whatever it is called) thing. Check this thread.

https://67-72chevytrucks.com/vboard/...d.php?t=257463

1974StepSide 10-01-2021 11:23 PM

Quote:

Originally Posted by Palf70Step (Post 8976784)
Probably a heater vent door actuator (or whatever it is called) thing. Check this thread.

https://67-72chevytrucks.com/vboard/...d.php?t=257463

Thank you, Iíll check it out.
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special-K 10-09-2021 09:23 AM

Re: Whatís this sound? Heater A/C related
 
I've heard odd noises coming from that area before in my '95. Not that loud or as repetitive or rapid. I figured it was some issue with a flapper actuator. I never figured it out. I don't think I've heard it in a while but this thread made me think of it.

hatzie 10-11-2021 02:46 PM

Re: Whatís this sound? Heater A/C related
 
Sounds like the blend door actuator on my Impala when it failed.
The plastic gears strip out and then it sits there and clatters.


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