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Old 03-31-2021, 05:13 PM #1
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Leak in cab when raining

Anyone tell me what’s happening here water pouring in when raining and I back up ? The molding looks good no cracks, really strange. Thanks


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Old 03-31-2021, 06:11 PM #2
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I've got the same issue. After a heavy rain and I get into the car and back up a rush of water comes pouring out the top of the windshield and pours onto the steering wheel and my lap. I'm thinking that heavy rain causes a build-up in the sides of the sunroof area and seemingly can't drain fast enough (drain lines are as clear as I can get them). I think it's from the sunroof surround (the fuzzy part outside of the plastic) contracting/wearing down over time and letting more rain get into the area than would have when it was newer. It also seems to leak down the driver side B pillar and soak the rear passenger footwell area pretty thoroughly. I'm trying to come up with a fix that doesn't involve sealing the sunroof shut or replacing it outright since it's $$$$$$$ as hell. This wasn't a problem in Colorado, but since moving back to the South the rain is sufficient to cause this little headache. Let me know if you find a solution.
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Old 03-31-2021, 06:20 PM #3
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If you have a sunroof, check the drains.

If you don't, check your roof rack. The bolts that hold the tracks MUST be sealed with silicone when they are put in.
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Old 03-31-2021, 06:55 PM #4
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Another vote for roof rack bolts.
Back em out, pump a bit of silicone in there and install again.
For the rails bolted directly to the roof.
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Old 03-31-2021, 07:04 PM #5
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Quote:
Originally Posted by rickmum View Post
Another vote for roof rack bolts.
Back em out, pump a bit of silicone in there and install again.
For the rails bolted directly to the roof.
I'll give this a try tomorrow when it stops raining. I'm also going to make sure the drain plugs are clear.... recommendations for cleaning them out? I'm thinking some Dawn water, can of air, and some dressing (like Armor All, not ranch).
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Old 03-31-2021, 10:24 PM #6
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Leak in cab when raining

Quote:
Originally Posted by 99problems View Post
I'll give this a try tomorrow when it stops raining. I'm also going to make sure the drain plugs are clear.... recommendations for cleaning them out? I'm thinking some Dawn water, can of air, and some dressing (like Armor All, not ranch).

I think you can snake the sunroof drains with something like weed whacker / string trimmer wire?
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Old 03-31-2021, 10:37 PM #7
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Add me to this list also. Last week it was the by the drivers door(almost the same spot the photo shows) and this week it was by the rear hatch.
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Old 03-31-2021, 10:38 PM #8
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Quote:
Originally Posted by 99problems View Post
I'll give this a try tomorrow when it stops raining. I'm also going to make sure the drain plugs are clear.... recommendations for cleaning them out? I'm thinking some Dawn water, can of air, and some dressing (like Armor All, not ranch).
Drain plugs... is there a "write up" anywhere on this? or is it that simple to fix
Thanks.
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Old 03-31-2021, 10:41 PM #9
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Wouldn’t the head liner be soaked if it was the sunroof? Are you sure it’s not coming in around the door moulding? The top most rubber is a drain channel, maybe it’s full of dirt and causing a backup there?
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Old 03-31-2021, 11:42 PM #10
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It could be the door molding if it's torn at the top. It would be pretty obvious though.
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Old 04-01-2021, 10:53 AM #11
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Well I think I found the culprit on my end and it turned out to be a much easier fix than I imagined. I opened the sunroof and used a pump sprayer with some hot water and Dawn to test the drains. Front two drains were perfect and immediately ran free and clear out behind the front tires. Passenger side rear drain also ran a nice stream out behind the rear tire so no problems there. Driver side rear drain..... just a tiny drip between the seams in front of the rear tire. Luckily Dawn is amazing so I let it power through whatever crud was stuck in there and after a couple minutes I sprayed more hot Dawn water in the sunroof drain channel; repeat until ~10 minutes later and everything appears to be draining well. I even bought some weed whacker trim line that I won't be needing now. I'm still going to go ahead and back out the roof rack screws and add some silicone and re-tighten them down per the advice of rickmum, but this looks like it was an easy fix that I should have done a month ago.
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Old 04-01-2021, 01:39 PM #12
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Unscrewed the roof rack (5 torx bolts on each side) and pulled it off to reveal the nastiest bit of paint I've seen in quite a while. Got it cleaned up and ceramic coated (also cleaned and silicone sprayed the bottom of the roof rack rails) before applying a dab of silicone goop into each exposed hole and reattaching the roof rack. Picture of the grossness:
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Old 04-01-2021, 01:55 PM #13
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Quote:
Originally Posted by giguchan View Post
Drain plugs... is there a "write up" anywhere on this? or is it that simple to fix
Thanks.
I found something even better than a write-up. Turns out Timmy made a whole how-to video on clearing the drains (and removing the headliner if you need to do that): https://www.youtube.com/watch?v=MVJW...ture=emb_title
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Old 04-02-2021, 12:39 AM #14
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Quote:
Originally Posted by 99problems View Post
Well I think I found the culprit on my end and it turned out to be a much easier fix than I imagined. I opened the sunroof and used a pump sprayer with some hot water and Dawn to test the drains. Front two drains were perfect and immediately ran free and clear out behind the front tires. Passenger side rear drain also ran a nice stream out behind the rear tire so no problems there. Driver side rear drain..... just a tiny drip between the seams in front of the rear tire. Luckily Dawn is amazing so I let it power through whatever crud was stuck in there and after a couple minutes I sprayed more hot Dawn water in the sunroof drain channel; repeat until ~10 minutes later and everything appears to be draining well. I even bought some weed whacker trim line that I won't be needing now. I'm still going to go ahead and back out the roof rack screws and add some silicone and re-tighten them down per the advice of rickmum, but this looks like it was an easy fix that I should have done a month ago.
Didn't know the drains were IN the Sunroof..
There's a lot i don't know about my Runner it seams... I'm going to try this..
Thanks.
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Old 04-02-2021, 12:40 AM #15
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Thank you.. i'm going to have a look.!
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