I have an 05 and ordered an evaporator core when my mechanic said that was the issue. I have a great mechanic. Can fix anything on a car. Cost for labor was quoted at $300. We shall see. Big job I'm told.
Denso 476-0040 A/C Evaporator Core
My Air Conditioner sounds like it's breathing
- Thread starter chaoticlife
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I have an 05 and ordered an evaporator core when my mechanic said that was the issue. I have a great mechanic. Can fix anything on a car. Cost for labor was quoted at $300. We shall see. Big job I'm told.
Denso 476-0040 A/C Evaporator Core
Same boat
Just noticed it this evening while waiting outside a publix for the family.
I dont too much about the trucks history so I dont know whats been changed. Mine happens when the compressor engages as well then I hear a faint hiss/whistle. Like my truck is telling someone to come hither lol.
Was freaking me out for a sec because I just dropped a good dime on the friggen head gasket. I pray for a long life for this AC while my wallet recuperates.
Just noticed it this evening while waiting outside a publix for the family.
I dont too much about the trucks history so I dont know whats been changed. Mine happens when the compressor engages as well then I hear a faint hiss/whistle. Like my truck is telling someone to come hither lol.
Was freaking me out for a sec because I just dropped a good dime on the friggen head gasket. I pray for a long life for this AC while my wallet recuperates.
Mine has done this since I got it about a year ago. I'm convinced it's the sound of the freon passing through the expansion valve into the evaporator core. I have a real simple fix for it though: turn up the radio. 
But seriously, as common as this seems to be I'm gonna treat it like it's normal. It's not hurting anything and the A/C blows plenty cold so I just ignore it.
But seriously, as common as this seems to be I'm gonna treat it like it's normal. It's not hurting anything and the A/C blows plenty cold so I just ignore it.chaoticlife
New member
It's been about 7 years since I posted this thread. My 4Runner still makes the noise, but it seems less noticeable than it used to be. I don't think it's just that I've learned to ignore it.
The original compressor (that a couple of mechanics suggested replacing because of this noise) is still going strong after 225k+ total miles and 17 years of Georgia summers.
I am long past worrying about the noise at this point. It's just part of the truck, which I still love.
The original compressor (that a couple of mechanics suggested replacing because of this noise) is still going strong after 225k+ total miles and 17 years of Georgia summers.
I am long past worrying about the noise at this point. It's just part of the truck, which I still love.
