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Registered
2012 2.5 CVT Limited/MR
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16 Posts
Discussion Starter · #1 ·
I noticed a high pitched whistle (like a high freq tone noise) with the car idling at

a red light or in park. It can be heard inside the car and outside. I even tried

turning off the radio and still does it. Any ideas?
 

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Premium Member
(formerly) 03 H6 OBW , (presently) 06 WRX Sportwagon & 2021 Honda CR-V
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18,665 Posts
any work, mods, wrecks lately?

is it a squeal, buzz or true whistle?

Is it from under the hood? under the middle of the car?
 

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Registered
2012 2.5 CVT Limited/MR
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16 Posts
Discussion Starter · #3 ·
No mods, no wrecks, 5k miles. Where its coming from is hard to pinpoint. Dont really heard it around engine, maybe cause of engine noise.
 

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'13 XV Crosstrek Premium CVT
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380 Posts
I'd guess maybe the fuel pump? They can make a sound similar to what you describe...the noise is actually constant, but if it can be heard at all, it's usually only heard at idle because other noise drowns it out when moving or revving the engine.
 

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2011 Outback 2.5i 6MT Ruby Red Pearl
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413 Posts
My air conditioner makes a noise like you describe. On mine (MY2011, base 2.5i), it's probably harmonic ringing in the compressor walls. I only notice it when idling.

If your AC is on, try turning it off and see if the noise goes away.

Try turning off the fan, as well, if it's not the AC.

Andrew
 

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Premium Member
2012 Subaru Outback 2.5i Limited
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961 Posts
My AM radio makes that noise whenever I listen to talk radio. But when music is played thru USB or FM, I don't hear it.
 
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