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Old 02-27-2018, 05:37 AM   #1
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Join Date: Feb 2018
Location: Clovis, California
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03 Yukon Xl Denali 6.0 Clunk/Growl/Whine Front End

Hi, 03 Yukon Xl Denali 6.0, 225,000mi, bought it at 222,000mi. Has a growl/whine noise in the front end after a long stretch of highway speed, while slowing down decelerating/braking right before coming to a stop. It also makes a clunk sound as I accelerate out of a low speed turn in the front end. A slight delay in engaging and clunk. Have been reading on several forums. Front differential or transfer case? Possible rebuild or replacement? Low fluid, shavings, bearings, etc.? Iím unfamiliar with AWD. I do have records of a rear differential replacement less than 10k ago. Doesnít sound like itís coming from the rear.

This stuff may be unrelated but want to give as much info. possible. it does clunk putting it in reverse from park. If Iím in cruise at highway speed, coast to reduce speed and re-engage cruise, I hear the similar clunk as accelerating out of low speed turn. I also disengage the traction control before I leave because it can be set off from acceleration while turning from a stop sign.

Any information, links to info, or questions are appreciated. Thank you guys.
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