Hey Guys,
I've got an 07 AV 3LT with the 5.3L, 4x4. I've got this weird whining sound at 45mph and 70 mph when the engine is around 2k RPM. My mechanic originally thought it was the pinion bearing but that's not it because he did it 2x already (at no charge). I'm going to bring it back in at some point but it doesn't seem to affect the truck. It's just getting to the point where it's annoying. I've had the truck since April of 2010 and 33k miles. It now has about 130k.
Has anyone had anything like this happen to theirs?
Thanks,
Drew
I've got an 07 AV 3LT with the 5.3L, 4x4. I've got this weird whining sound at 45mph and 70 mph when the engine is around 2k RPM. My mechanic originally thought it was the pinion bearing but that's not it because he did it 2x already (at no charge). I'm going to bring it back in at some point but it doesn't seem to affect the truck. It's just getting to the point where it's annoying. I've had the truck since April of 2010 and 33k miles. It now has about 130k.
Has anyone had anything like this happen to theirs?
Thanks,
Drew