Growling/whiring/humming noise while driving, 2002 silverado 1500 4x4 4.8L
Ok guys I have an issue thats driving me nuts. Im a diesel technician as a regular but this time im stumped and could use some assistance. My truck makes a growling/whiring/humming noise while driving, Its best heard between 25-45 mph and can be heard best when off the accelerator, radio has to be off to hear it well and it goes away when making a left hand turn. Ive already replaced the L/f wheel bearing/ hub assembly and that did not correct the issue. Im curious if anyone else is or has expirienced this issue and if they have any solutions.