Mazda MPV Air Filter Box noise

whitempvwhitempv Member Posts: 3
edited September 2014 in Mazda
Hi, Does anyone here had any experience with a noise coming from the air filter box, looks like the noise is only when the air temp. is below 40F. and when is below 2000 rpm.
I can not explain what type of noise that is, maybe like when you turn on a house vacuum.
Any ideas??/
Thank You
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Comments

  • subearusubearu Member Posts: 3,613
    IAC valve, an easy DIY replacement on '00-'01. The noise is commonly referred to "foghorn" but can vary and sound different to some.

    -Brian
  • whitempvwhitempv Member Posts: 3
    Tha's exactly how it sounds, even my neighbor told me that it sounds like an old horn.
    Do you know the exact location on this specific car?... I can only find the Map sensor and the Mass air flor sensor.
    Thank you,
  • subearusubearu Member Posts: 3,613
    i'd have to google it, I just know from reading mpvclub that the foghorn noise = bad IAC

    -Brian
  • whitempvwhitempv Member Posts: 3
    Thanks, I found a video in you tube....
    thanks for the info....helped me a lot.
  • bknydiybknydiy Member Posts: 1
    yes mine does that too,when its cold and i start it up if i put it in gear it starts honing sound,when its warm it doesn,t.
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