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What causes a whistle sound on a new A/C system in a 2003 CRV?

Tiny
PLEEAZS
  • MEMBER
  • 2003 HONDA CRV
  • 67,600 MILES
On a 2003 CRV with a New a/c system, I hear a whistle sound with the a/c on, fan on low, recirculate on, the the vents on the top/main selection. It happens on local roads or on the highway.
Wednesday, September 26th, 2012 AT 8:26 PM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
It could be just air noise. You'll have to pinpoint exactly where it is originating from. All the actuators are electric so it's not a vacuum leak.
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Wednesday, September 26th, 2012 AT 8:33 PM
Tiny
PLEEAZS
  • MEMBER
  • 2 POSTS
It sounds like it comes from behind the dash, passenger side, in the area of the glove box.
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Wednesday, September 26th, 2012 AT 9:01 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You're going to have to inspect it yourself. It could be just the sound of air being drawn in or you may have even sicked a plastic bag up into the air intake. Looking and listening is the only way you are going to find out. You may have to remove the glove box for clear access.
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Wednesday, September 26th, 2012 AT 10:05 PM

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