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Rear window leak

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Duramaxsky Enthusiast

Duramaxsky

Posted
Posted

It rained all day here. Sometimes really hard rain. I looked it over real careful and it's dry. I hope it won't leak. As for the headliner I think either the windshield or the rear window has to come out to get it out of the truck. At least that was the case on my 03 Duramax. Well not mine as it's an extended cab but if it was a crew cab it would.

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Rocz3cqg
Rocz3cqg

Sliding Glass or / and Stop Light Module reported Leaking Situation             Contacts

ShamrockShooter
ShamrockShooter

Well my 2019 early build leaker was replaced with 2020 hopefully not leaker. No signs of an leaks on the window or headliner of the 2020 so fingers crossed. Very impressed with the 10 speed after th

Thomcat
Thomcat

No leaker here so can't do a 100% verification, but the problem seems to be with the spoiler design, regardless of weather the sealer leaks or not, and any cracks in the trim make it worse.  

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Blade8971 Enthusiast

Blade8971

Posted
Posted

My 2020 TB went to the dealer a few days ago for the leak issue on the rear window - got it back yesterday.

It rained last night through to this morning...checked the rear seats and window....so far no leaks.

My dealer arranged to have an auto glass company remove the window and reinstall it as they determined the original seal was defective.

 

 

  • Like 1
econometrics Senior Enthusiast

econometrics

Posted
Posted

Well... winter is arriving in North Texas today/tomorrow. Cold, windy, and slow and steady rain. Had to put a new dry towel behind my rear seat to get ready for all the leaking. ? ??‍♂️ 

 

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JWOutdoors29 Enthusiast

JWOutdoors29

Posted
Posted

Steady, all day rain here too.  My window will be getting it's first test since being repaired last week.

mrskiff Enthusiast

mrskiff

Posted
Posted

Well my second reseal failed so back to the dealer for a 3rd time i go. Love the truck but this is getting old quickly

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Jrodpic Enthusiast

Jrodpic

Posted
Posted (edited)
On 10/20/2020 at 10:53 AM, Jrodpic said:

https://static.nhtsa.gov/odi/tsbs/2020/MC-10171889-9999.pdf

 

Looking at the pictures from the service bulletin I am convinced it is caused by water running down the top gap of the spoiler. It is either getting in the holes or cracks on top of the window. I am willing to bet that if a gasket/weather stripping was put in to prevent water from getting in that gap it would fix the problem. Someone with a leak should try to measure the gap and use something like this. That’s one of the first things I am going to do once ours if finally delivered.

 

1/16”? 1/8”? 1/4”?

 

https://www.zoro.com/e-james-rubber-cord-neoprene-18-in-dia-10-ft-csneo-18-10/i/G7615781/?recommended=true

Got the truck. Measured the gap. 1/4”. I ordered a couple different rubber cords to try to seal it. Will report back how it fits. 

Edited by Jrodpic
UGADawgs Enthusiast

UGADawgs

Posted
Posted
8 hours ago, Jrodpic said:

Got the truck. Measured the gap. 1/4”. I ordered a couple different rubber cords to try to seal it. Will report back how it fits. 

I like this idea. Let us know how it goes.

  • Like 1
Loner88 Enthusiast

Loner88

Posted
Posted

When they did mine last week, they ordered  new nuts for the spoiler. Said they were some kind of updated ones to help the leak issue.

paui4m Enthusiast

paui4m

Posted
Posted

Mine is getting worse quickly. It was barely raining here today, and it was a pretty steady drip. The towel was surprisingly wet .

With over an inch in the forecast, and given it won't fit in the garage, I reluctantly called a dealer today and it's going in tomorrow morning. 

 

More to come. 

 

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted
7 minutes ago, paui4m said:

Mine is getting worse quickly. It was barely raining here today, and it was a pretty steady drip. The towel was surprisingly wet .

With over an inch in the forecast, and given it won't fit in the garage, I reluctantly called a dealer today and it's going in tomorrow morning. 

 

More to come. 

 

“Barely raining” is usually the worst for some reason.

paui4m Enthusiast

paui4m

Posted
Posted
8 minutes ago, OnTheReel said:

“Barely raining” is usually the worst for some reason.

This is a weird one. I've owned a lot of Jeeps with countless issues through the years. 

I'm in IT, and not Engineering, so maybe this is easy for me to say but....

I can't believe they haven't figure this one out on vehicles that cost this much.

 

My 1978 Pontiac Phoenix even stayed dry in the rain. 

 

All that said, I really do love the vehicle, and hope they can find a resolution. 

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