For several months I have been having a chirping noise in my 2011 Sentra that 7.....yes 7....shops, including the dealer, have not been able to track down. One thing that has never been mentioned by any of them is the CVT transmission. I have not heard of a chirp from these before, but I'm wondering if anyone has had any experience with this symptom. The transmission shifts as perfectly as day one.The chirp primarily occurs on acceleration and going up hill (in other words, under load). Also, the noise tends to disappear as soon as you take your foot off of the accelerator pedal.

 

I noticed the same thing with 2022 Sentra S.
Did you find any resolve for this?

 

That's interesting....but I wonder if it's the same noise. My car has 135,000 miles on it and didn't start doing this until about 5000 miles ago.

I just took it to a transmission shop yesterday and the mechanic there said he didn't think it was the CVT. I'm kind of at a loss.

 

Took my Sentra to a transmission shop last week....one that works on CVTs....and the guy there said that he didn't think my chirp was from the CVT. I guess that takes me back to square one as to trying to figure out what it is.