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Whining sound with acceleration

Old July 8th, 2018, 5:48 AM
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Default Any answers?

Iíve been having the same sound with my vw Jetta gli. Thought rain made it more noticeable to hear. My car had been idling just a tiny bit higher when I start her and if I press on the gas and release her, is when the sound starts. No engine light and I do take proper care of the maintenance.
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Old January 11th, 2019, 6:12 PM
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Originally Posted by 73shark View Post
Welcome to the forum.

Possibly differentials or wheel bearings.
Originally Posted by LARIDERS View Post
could check the pullys to make sure they are all good. if you rev it up not moving is the noise still there?
rear differential
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Old February 27th, 2019, 11:11 AM
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Iím new here, how can I post. I have a 2015 LTZ whining at 63000 miles when I accelerate?
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Old February 28th, 2019, 5:22 AM
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Does the sound seem to come from the rear differential? If it is only on acceleration, I'd suspect the pinion bearings.
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Old April 30th, 2019, 11:59 AM
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Default Whistling noise

Did you find the solution to your problem I have an 03 Chevy Silverado doing the same thing I changed the carrier bearing and that wasn't it.
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Old June 20th, 2019, 9:32 PM
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Default Had same issue on 03 avalanche

Originally Posted by belving6 View Post
I have a 99 with 170k miles. I'm hearing this whining sound that starts around 40 mph. It's faint and only happens when on the accelerator. Goes away when letting off the gas and comes back when on the gas. Its constant while cruising. Sounds like it is coming from the front but not sure. After taking it to 3 mechanics, diagnosis was trany pump was going out and i needed new transmission. Took it to have the trany rebuilt and there was nothing wrong with trany. So far I have replaced differential fluids in front and rear, front differential gear and bearing, pitman arm, trany diagnosed, U joints, front and rear brakes. Unfortunately after lots of money and mechanics, I still have no idea what is causing the noise. Anyone ever experience this before? Any information would be greatly appreciated.
This drove me crazy had the same issue thought transmission at first but fluid was clean and it shifted pretty good for the mileage. So I started checking pulleys. Bearing was grinding on alternator so I changed it but that didnít fix it. Took a stethoscope after that listened to trans in gear and in park at idle and torqued. Nothing out of ordinary so checked pulleys noticed a small whine while idling on power steering pump but it didnít match the sound. Checked the tensioner and heard the bearing grinding at idle so had my wife come out and hold it between 1500-2000 rpms where I noticed the sound the most while driving put the stethoscope on the tensioner and heard the same whining I was getting going down the road. Changed the tensioner and idler and belt and whine is gone. Never had a bad tensioner sound like this before they usually just make the belt squeal but that was my issue check pulleys first way less expensive than tearing into the transmission if thatís not the problem. Not saying it canít be a transmission issue but luckily mine was an easy fix. Good luck hope this helps someone else searching for this noise.
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