2004 GMC Yukon Denali XL Base 8 Cyl 6.0L
Transmissions & Drivetrains
what is wrong when i hear an intermittent knocking sound while driving?
the noise is not constant. the noise does not occur when the car is not moving.
Need more information - is the sound localized; from either front or rear, either left or right sides? At waht speeds does the noise occur? Under what road conditions; smooth or rough roads?