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Yukon Denali, XL Denali, Sierra DenaliTop

Full-time all wheel drive system with free differentials.

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There are 2 comments
Chris
December 01, 2016 - 23:58

I have a 2004 Yukon XL that is AWD (button selections are 4lo, awd, stability). Recently it has started having an issue. At low speed turns, parking stalls etc, it acts like it is in 4wd. This is my first awd, so describing the issue can only be related to driving a 4wd on concrete. The tires screetch and seem to "roll over" themselves. I have read a lot of possible scenarios. What type of AWD is the Yukon? Shop wants to replace the transfer case. The vehicle also has what i see to be a common issue with the wheel speed sensors where the abs wants to kick in for now reason, usually when starting from a dead stop. I am replacing the front hubs and speed sensors now, hoping to resolve the ABS issue and possibly the transfer case issue? What tells the transfer case to allow the front wheels to spin at low speeds?

V Payne
September 20, 2016 - 22:32

Are the brake line system the same with all wheel drive GMC Sierra and 4 wheel drive? When I look up brake lines I have a choice of 2 wheel or 4 wheel drive. never all wheel drive.