High pitched whining noise - Jeep Wrangler Forum

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Old 06-01-2012, 11:06 AM   #1
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High pitched whining noise

I've noticed lately a weird noise only at 1000-2500 RPM or so, sounds like a high pitched whining noise almost like a turbo or something. It doesn't happen all the time either, just sometimes.

I started to think it could be the K&N filter I put on a month or so ago, since I suppose it could be some kind of air sucking making that noise.

I'm going to put the stock filter back in when I get home, anyone have any other ideas?

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Old 06-01-2012, 11:10 AM   #2
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I have the 3.8 but hear something similar.

Almost like I'm running a CAI. A whistle during acceleration around 1500-2000 rpm

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Old 06-01-2012, 11:16 AM   #3
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Same sound here, but I attribute it to the radiator cooling fan. Especially when I don't have a female companion in the passenger seat...
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