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Hissing sound by A/C vent

Tiny
PCULQUI
  • MEMBER
  • 2005 TOYOTA SIENNA
  • 3.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 106,000 MILES
There is a hissing sound by the passenger side A/C vent. Could that be the blower motor or the A/C actuator?
Thursday, July 9th, 2020 AT 3:42 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Does it stop when the blower motor is turned off? Or does it stop when the vehicle is not moving?

Normally this type of noise is an HVAC housing door that is not sealing causing a hissing noise.

Can you get a recording of the noise which will help identify it?

Let us know about the questions above and we can go from there. Thanks
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Thursday, July 9th, 2020 AT 4:07 PM
Tiny
PCULQUI
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  • 354 POSTS
Okay, I will see if I can catch it when it makes that noise. Thanks.
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Thursday, July 9th, 2020 AT 4:11 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You are welcome. We will wait to hear back. Just make sure you take notice if it only does it when the blower is on or if the vehicle is moving. Thanks
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Thursday, July 9th, 2020 AT 7:22 PM

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