2015 Yukon headliner rattle fix

[YukonJohn]

The rattle we had was coming from headliner behind the passenger seat, and was typically worse at medium to highway speeds. It is noticeably louder with the sunroof cover slid back(open). My fix: Open rear passenger door and stand on running board to access the roof rack. If you wiggle the crossbar of the rack it has the slightest of slack, but just enough to make a clanking sound. I wedged some thin flexible magnet pieces(no the rack isn't magnetic, just what I had handy) in between the crossbar and the roof brace in front of and back of the bar(see pic). Viola...no noise. If these come loose I will come up with something more robust(maybe some two part epoxy).

 

I'm not familiar with the inside of the 2015-2019 Suburban, Tahoe, and regular Yukon's, but the ultra quiet cabin of the Denali amplifies ANY little rattle or strange noise. I was used to the road noise and rattles of my 2007 Suburban(288K). They went kind of hand in hand. This one will take some getting used to. I know, suck it up buttercup.

 

Now...back to the "other" issue... front end clank, clank, clank-clank after medium to hard braking, but occasionally during acceleration, and less occasionally steady speeds. No specific rhythm, almost like it's swinging in the wind, and then it suddenly stops after a few seconds. Please help if you know anything! I WILL fix this too! There is a video from another in a different thread on here that has the EXACT same issue/sound as mine.