Grinding felt in pedals when turning or accelerating?

Tiny
221PISCES
  • MEMBER
  • 2014 CHEVROLET IMPALA
  • 2.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 95,489 MILES
There's a scrape/grinding sound that first came only when turning right when accelerating, usually if pulling out of a parking space and feel it in the pedal. If I let go of the gas and then continued to accelerate again it would stop. I thought it was a transmission issue but after replacing it the sound came back 2 weeks later but now it does it when I turn either way or go over bumps and I have to press the gas extremely slow if I'm starting to drive from a complete stop because if I don't it will do it again. The closest thing I can say it sounds like is the sound a car makes when shifting wrong on a manual car. I've replaced the front struts but that didn't fix it, it's been getting worse, and it started maybe 3 months ago. I replaced the rotors, brake pads and tires 2 months ago and there were no issues reported to me after the diagnostics on that visit. Also, when the noise happens the car kind of shudders or jerks a little bit, kind of like something slipped and its trying to catch itself. I don't know if that helps but thank you in advance for any help. I tried recording the sound and learned my phone would only pick it up from the dash area not under by the pedals. I attached the audio.
Friday, March 8th, 2024 AT 7:32 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,389 POSTS
I don't see the video; can you please reload it? It takes a couple of seconds so please allow it to load. To me it sounds like the bearing hubs or CV axle needs to be replaced. To see if the CV axles are the problem they will need to be completely disassembled to inspect the cups for wear. Also, bearing hubs are a common repair as well. You should be able to raise the car up grasp the top and bottom of the wheel and try to move it to check for play (both sides).

This guide can help:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Here is how to remove the CV axles as well so you can see. Check out the images (below). Please upload pictures or videos in your response to the problem so we can see what's going on.
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Friday, March 8th, 2024 AT 10:19 AM

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