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2012 Forester
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3 Posts
Discussion Starter · #1 ·
Good morning,

A few months ago, my 2012 Forester began making an intermittent hissing/whistling noise. It's loud enough to hear over the radio and heat/AC and the best way I can describe it is that it sounds as if air is escaping from somewhere/something under the hood.

The noise starts only after the car has been driven at highway speeds for at least 20-30 minutes. I don't hear it driving around town at all. Once the noise starts, I can hear it at all speeds. It only stops when the car itself comes to a stop. The noise doesn't seem to correlate or change based on speed, acceleration, deceleration, shifting, temperature, etc. It's either there or its not.

As I said, it is frustratingly intermittent, which has made it difficult to get to a shop and have someone listen to it. On a camping trip last weekend I heard it all the time. Today I drove to the dealer and back (2 hrs round trip) for a recall repair and of course didn't hear it at all.

Whatever the source of this is, it doesn't seem to be affecting performance at all. No leaks, warning lights, etc, but it is frustrating. Has anyone had a similar experience of have ideas for things I could check to narrow this down?
 

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2011 Forester
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93 Posts
What’s the history on the car? Has it been in a wreck? How many miles are on it? Does it have the 4eat? Also did your short block need replaced for oil consumption?
 

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Registered
2012 Forester
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3 Posts
Discussion Starter · #5 ·
No wrecks. 4-speed automatic transmission. Sitting at about 118,000 miles right now. Short block replaced about a year and a half ago under warranty. No oil consumption issues since then.
 
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