# Help ID Knocking Noise From Rear Right Wheel **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** escape, ford\ **Created:** [December 23, 2021, 7:21pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423 "2021-12-23T19:21:54Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![toobadforbones](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/toobadforbones/32/27530_2.png) [@toobadforbones](https://community.cartalk.com/u/toobadforbones)\ **Post date:** [December 23, 2021, 7:21pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/1 "2021-12-23T19:21:54Z")
For a 2012 Ford Escape. A couple of weeks ago, I started to notice a fairly loud knocking noise from my rear right wheel. What’s unusual about it is that it only happens when actively accelerating (it completely stops when I remove my foot from the gas. I don’t need to apply the brakes.) and it seems to start up at around 20MPH and then speeds up with acceleration until it stops at around 30MPH. I have noticed no other symptoms such as vibrations, loss of power, difficulty steering, whining, pulling, or grinding. I also haven’t noticed anything leaking from that area, either. Any help pointing me in the right direction would be greatly appreciated! ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [December 23, 2021, 7:26pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/2 "2021-12-23T19:26:52Z")
Have someone inspect the brake shoes and hardware for that wheel. Tester ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [December 23, 2021, 7:34pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/3 "2021-12-23T19:34:19Z")
I believe that Escapes of that vintage had a problem with the strut mounting area of the body rusting out. ---
**Author:** ![toobadforbones](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/toobadforbones/32/27530_2.png) [@toobadforbones](https://community.cartalk.com/u/toobadforbones)\ **Post date:** [December 23, 2021, 8:37pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/4 "2021-12-23T20:37:22Z")
I had the brakes worked on not too long ago. Could that have caused the issue? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [December 23, 2021, 8:39pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/5 "2021-12-23T20:39:59Z")
Have someone check the work. Tester ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 23, 2021, 10:47pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/6 "2021-12-23T22:47:25Z")
Could just be a rock or pebble has found its way into that wheel. If so moving that tire to a different location will cause the sound to follow. ---
**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\ **Post date:** [December 24, 2021, 7:24am UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/7 "2021-12-24T07:24:01Z")
Could also be an exhaust pipe hitting something as you decelerate, especially if you have bad motor mounts. ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [December 24, 2021, 3:48pm UTC](https://community.cartalk.com/t/help-id-knocking-noise-from-rear-right-wheel/181423/8 "2021-12-24T15:48:41Z")
To follow up on my previous comment: [Ford Escape Frame Rust Problems - part 1](https://www.carproblemzoo.com/ford/escape/frame-rust-problems.php#:~:text=The%20rear%20shock%20upper%20mounting%20tower%20and%20support,this%20is%20a%20very%20common%20issue.%20Manufacturing%20defect).