Hi rolex69,

I just started to get the same whirring/whining noise while accelerating in my 09 Patriot Sport. I have about 32,000 miles on it.

Just wondering how yours worked out?

 

Transmission fluid change is usually what does the trick. you might be low or it might be old. but the cvt is sensitive to its fluid as it sprays it on the belt. Too low or to worn out, and it foams and what you hear is the pump sucking bubbles/air and not fluid. at least that's the issue/fix I've seen most common on this site.

 

I think I may need to get mine serviced. Mine sounds like a tiny turbo spooling. I kind of like it though.

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aroundincircles,

Thanks for the insight! Getting the fluid (and I think there is a filter too) changed will be my immediate move on this.

For further detail on my particular issue for others who may be experiencing it, my whirring sounds only happens after the vehicle has been running for a while and is warmed up, it is rather quiet and the whirring sound volume is in unison with accelerating especially when accelerating up hills or passing someone. And as Creation stated it does sound like a tiny turbo.

It also occurs when I am in park and depress the accelerator after the engine has been running for a while and turning the steering wheel does not affect the sound at all, so I did rule out the power steering pump.

Thanks again roundincircles, I'll be calling my Jeep Dealer today.

 

Update,

I had the transmission service completed on Tuesday January 21st. The whirring noise hasn't happened again, but I haven't been on any real long drives yet. Regardless the transmission checked out and I have new fluid, filter etc so that feels good since I'm the second owner.

It the noise comes back it is no worry to me now, wasn't much of one to begin with, but I'm just paranoid...

 

How much did it run you taking it to the dealer JC

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I'm taking mine to the dealer today for a flash, and a cvt flush for $350.

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