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Old 07-20-2015, 04:16 PM
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2012 gc ltd 5.7

Hi, new here.

Recently bought this Jeep and have noticed a humming sound when the ECO appears in the message center.

Stepping on the gas pedal slightly to increase speed, the sounds goes away and ECO also goes

I'm assuming it's the motor dropping off cylinders creating that sound

Advise to ease the concern appreciated

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Old 07-20-2015, 06:28 PM
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Re: 2012 gc ltd 5.7

Yep, since I bought the car (new) I've had this low whistle sound at low speed when backing off the gas. Happens whether I'm in gear or in neutral so it's the engine and not the tranny. Others have mentioned it in the way past on the forum. I've got about 50K trouble free miles, so I don't think it is any real problem.
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