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2005 Yukon Denali Sunroof

Discussion in 'Interior' started by 05yukondenali, Jan 15, 2020.

  1. 05yukondenali

    05yukondenali TYF Newbie

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    My 2005 Denali's sunroof is in need of repair. It will work, but only one side will slide barely slide open before it stops sliding altogether. This is not the problem though, I was wanting to seal the sunroof because it is leaking into the cabin. Also, a good bit of water will come out of the drivers side rear vents if the Yukon is parked nose up after a rain storm, which I believe is being caused by clogged drains. My question is, if I silicone the sunroof shut would water still run down into the drains? If it would, I would first have to remove the sunroof glass because of the opening issue, blow the drains out, and then silicone the glass. Thanks
     
  2. Scottydoggs

    Scottydoggs Full Access Member

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    if you seal it to the trucks body it will stop leaking.

    could try blowing out the drains too. two in the front corners 2 towards the rear sides.

    you can open the roof up and pour a glass of water in each drain to see if they drain. back ones drain under the truck between the doors fronts behind the front wheels.
     
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  3. wjburken

    wjburken Supporting Member

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    Welcome to the forum.

    If you can’t get the glass back far enough to blow the drains out, might try taking some string trimmer line that is fairly stout .090” or so, and run it down the drain lines to clean them out. Personally, my OCD would want to know why my glass won’t go back and want to fix it. Of course, I’m also the guy that tore apart his 10 yr old son’s battery powered game last weekend and resoldered some broken wires instead of just getting a new one for $13.00.
     
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  4. adventurenali92

    adventurenali92 Full Access Member

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    Why buy a new one when you’re handy with a solder gun and can fix the one he has?! Lol I tore apart my sunroof to fix all the broken track pieces. And believe it was NOT a fun project. Not in the slightest bit. I wish I had let someone else do it. But then that would have cost me and arm AND a leg to the mechanic. On the upside I fixed it myself, it works, and only cost my the $110 repair kit and like 4 hours of my time to do it hahaha. And I love having a sunroof! So I wanted it fixed!
     
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  5. live2pull

    live2pull Full Access Member

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    I would try lubing the tracks and see if that helps. As far as sealing it goes, I would try calling some glass shops and see if they will sell you the seal for it as opposed to affixing to the body.
     
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  6. 05yukondenali

    05yukondenali TYF Newbie

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    Thanks for the suggestions. I forgot to mention that there is a piece of plastic that broke off of something on the side that opens slightly. I am not interested in fixing the mechanism or taking it somewhere to be fixed, I don't use it, never used them in any of my vehicles, and never will. I just want to get it sealed so I don't have to worry about water getting in. I will try the weedwacker string for the drains. Still, I see now that sealing it would prevent watter from coming into the cabin directly, but would this also prevent water from getting into the drains and then leaking into the cabin? Thanks.
     
  7. wjburken

    wjburken Supporting Member

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    Sealing the window where the existing seal is on the glass, should keep water from getting into the “gutter”. As long as the drains are clear, water getting to them should not be a problem. I would also double check any other roof top penetrations like roof rack rails or OnStar antenna.
     
  8. mijohnst

    mijohnst Full Access Member

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    Check those gutters. From lots of I've read from here, they're usually the problem. I didn't have an issue with leaks on mine, but I checked them anyway after reading about it in this forum and found mine were close to being clogged.
     
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  9. clandr1

    clandr1 Full Access Member

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    Pretty sure I know what's going on here, because it happened to me YEARS ago.

    When I bought my truck new in '06, my sunroof worked no problem. However, after the warranty ran out I started to hear an occasional rattling overhead, behind the sunroof. Long story short - the drip pan that spans across the rear portion of the sunroof opening had somehow come off track, and was binding up when I opened the sunroof.

    One day it bound up so bad, it broke part of the plastic pieces on either side that guide the glass down and away from the roof of the truck as it is retracted. I was able to remove the drip pan and I still have it sitting in my garage, waiting for the day I get the courage to have shop fix it for what will probably cost me $1,000.

    With the drip pan off track or missing altogether, that rain water is completely missing the rear drain holes and is settling way in the back of your truck. I have water lines in my headliner from where I parked, nose up, during a few rainstorms before I figured out what was happening. After the second time of getting doused with cold water from the headliner A/C vents, I started parking in my garage, or nose down if I knew rain was coming.

    Hope this helps.
     
  10. 05yukondenali

    05yukondenali TYF Newbie

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    Yes, this is exactly what is happenning. I am getting ready to pull the glass here soon since it won't open and check out the drains. So if I'm not mistaken, the drip pan came off track, which eventually caused the plastic on the rails to break, and now since your drip pan is gone you are just avoiding rain or parking with nose down? I bought the Yukon from my neighbor clear back in June with blown brake lines. When I went to pick it up to put it on my trailer, there had just been a heavy rain and it was also parked with nose up, and needless to say the water came pouring out of the rear drains when I started moving. Since it had been sitting for 2 months, I thought that water had just condensated up there and that it would be a one time thing. Until November, we barely had any rain at all, and of course there was no problems with water. Since it started to rain more frequently, the problem returned. Since then I have just been trying to put it in my garage and avoid parking with the nose up when it was going to rain, finally getting time to work on it now. Hopefully I can get to the rear drains without dropping the headliner today.
     

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