So last week my my engine started to make a whiny high pitched/high frequency sound when revving on accelerating. Today I had a chance to get under the car to take a closer look before taking it to the dealer for warranty repair. I listened closely with a stethoscope and found the culprit! It's the serpentine tensioner bearing. See how it's wobbly? Yup, this is it! Let's see what the dealer says when I take it in tomorrow

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very interesting.

 

will the dealer cover this? they will make an excuse about ur UR CRANK PULLEY.

 

We will wait and see. The UR Crank Pulley is factory size and is no way a contributing factor on a Tensioner bearing to wear out. Should be covered.

 

Good luck with the dealer. They will say just about anything not to fix it. How many miles do you have on it?

 

Interesting.

Definitely something to bring up to the dealer.

In for results.

 

Car dropped off this morning. Will post results as I receive them. Promise I wont keep you waiting

 

I just got a call from my service guy. He stated that it is the power steering pump that was making the noise, looks like it may have gone bad. Regardless, it will be covered under warranty.

I wonder then.. Is the tensioner bearing supposed to have play like noted in the video?

 

wait, so is this high pitched sound separate from the ecu high pitch noise that alot of us are experiencing?

 

How many miles does your car have?

 

Yes, this high pitched whine is not related and completely different.

32,000 miles

 

your tensioner may be wobbling from whatever is being relayed to it by the bad power steering pump.

 

I wonder.. Could someone take a look under their car to see if they Pulley does the same thing? Is this normal play?

 

Got the car back.. New Power steering pump. Covered under warranty.

 

^ great btw, do u like ur pulley? n who install it for u?