2018 Yukon Denali grinding/knocking noise

[Engineered]

Thank you, will check them asap.

 

[ivin74]

Yes coasting down hill. It is not a humming/gear noise. I would equate it to a badly warped rotor noise.

The exhaust flange is right below the driver floor board, it wouldn't hurt to check and see if the gasket blew out.

 

[ivin74]

One thing I neglected to mention is the front diff mounts. Bushings should be checked.

^x2