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2024 Mazda3 A/C Making a Sputtering Noise

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Old Apr 8, 2026 | 03:58 PM
  #1  
kaleenb's Avatar
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Question 2024 Mazda3 A/C Making a Sputtering Noise

Hi! I'm new to this forum and joined because I have a question about my Mazda3 that nobody can seem to figure out.

For about 2 months now, my car's climate control has been making a sputtering noise, almost like a sprinkler. It started when I was driving back to GA from FL and we stopped for gas. It made no noise before I shut the car off and the noise started when I turned the car back on. This noise does not seem to have affected the cooling or heating abilities of the car. It is just very irritating to listen to and can get so loud that I can hear it over my music.

I have taken it to a mechanic who claims to have fixed the problem, but when I picked my car up it was still making the noise. I went back inside and told them and one of them came back out to sit in the car to try to hear it, but of course it stopped making the noise. I drove the car around the block and heard it again so I went back to the shop and had a different guy ride with me and of course it stopped again. As I was driving home (10 minutes tops) I heard the noise again and this time very prominent. I have taken many videos of this noise but I feel like the one I got today is the best one.

Before I took it to the shop, I already tried taking out the cabin filter and cleaning out the filter and blower motor of leaves and debris. There was some present, but even with the filter off and the ac running it still made the noise. I even stuck my hand all the way down into the blower motor and cleaned out what I could, to no avail. I'll attach the video I took of the sound.
 
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Old Apr 8, 2026 | 05:39 PM
  #2  
Callisto's Avatar
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From: Northern California
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Welcome to the forum

You need to either go to Mazda or find a service shop that specializes in HVAC systems or find an ASE certified service shop in your area if you are in the USA. .

Your video like most is useless as diagnostic example of what you hear. Sorry
The other thing you may get many DIY suggestions but if you are not experienced with the AC and heating system on your Mazda of any vehcle manufactured from about 2012 I would suggest not to attempt any DIY service.
 
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