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Whistle in Recirculation AC Mode

dcarbs

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dcarbs Enthusiast

dcarbs

Posted
Posted

Highway speeds in recirculation mode I hear a whistle in my 2019 Silverado WT. Turn recirculation off and it goes away, turn it back on and the whistle is back. Anyone else?

  • 3 months later...
LtDreamy New Member

LtDreamy

Posted
Posted

Yes, had it at the dealer 3 times and they still can't find the issue. It starts around 65 and will stop if I turn off recirc.

HONDABBQ Enthusiast

HONDABBQ

Posted
Posted

I had this happen on my 2015 AT. I had some of the other vents closed. Opened them all up and it was gone. 

570590 Enthusiast

570590

Posted
Posted

I have the same thing also. Had it to a dealer. They tried to replace the windshield under warranty. I wouldn't let them because I'm pretty sure the windshield and recirculation aren't connected. 

redwngr Senior Enthusiast

redwngr

Posted
Posted

Similar to Hondabbq, I've had some vehicles that would whistle on recirc if to many/some vents were closed and fan speed was high. 

 

 

dcarbs Enthusiast

dcarbs

Posted
  • Author
Posted
On 10/23/2019 at 9:15 AM, LtDreamy said:

Yes, had it at the dealer 3 times and they still can't find the issue. It starts around 65 and will stop if I turn off recirc.

At least I’m not crazy. I was going to have them look but they wanted to take the dash apart. I didn’t want to risk a permanent rattle. 

Vicarod Enthusiast

Vicarod

Posted
Posted

I don't blame you.  I am waiting until they have a fix for it before I give the truck up for something fairly insignificant.  I don't feel like having my truck used for a research experiment.

I have told the dealership that it has the recirc problem.

I had a 2019 loaner truck that had it as well...

dcarbs Enthusiast

dcarbs

Posted
  • Author
Posted
17 hours ago, Vicarod said:

I don't blame you.  I am waiting until they have a fix for it before I give the truck up for something fairly insignificant.  I don't feel like having my truck used for a research experiment.

I have told the dealership that it has the recirc problem.

I had a 2019 loaner truck that had it as well...

Exactly my thoughts. From doing research, it sounds like this has been a problem since at least 2014 in GM vehicles. 

  • 3 weeks later...
2016 Sierra Owner Senior Enthusiast

2016 Sierra Owner

Posted
Posted
On 10/28/2019 at 12:10 AM, Derek Keith Carbonneau said:

Exactly my thoughts. From doing research, it sounds like this has been a problem since at least 2014 in GM vehicles. 

My 14 and 16 never had this problem.

  • 7 months later...

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