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Rear window leak

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OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

Most of the mules, even going back to August 2020 have had different color spoilers. There’s been too many of them assembled like that to just write off as coincidence. There has to be a reason.

 

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Part can look the same on the outside and be redesigned internally. Window could too.

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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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econometrics Senior Enthusiast

econometrics

Posted
Posted
4 minutes ago, OnTheReel said:

Part can look the same on the outside and be redesigned internally. Window could too.

That's basically what I am speculating, too... that possibly the framework UNDER/BEHIND the spoiler has finally changed. 

 

I just don't buy the "it's the window frame cracking" theory. We've all gone down that road with all the different window types in this thread, and every single new / replacement window seems to leak at some point. 


GM went all those years with a similar sliding back window frame/assembly without leaks. Ceteris paribus, the spoiler is the major design change from K2 to T1 as it relates to the rear window. Something is off with the engineering on it. 

Transient Senior Enthusiast

Transient

Posted
Posted

If there's a difference with the spoiler then there's likely a difference with the stamped steel that it bolts to. If that's the case, then a possible improvement may not work for us.

 

While we're at it, let's get giddy about the rear fenders and tailgate being covered, too. If there's a change there it'll only be the tail lights, but maybe it'll improve the body line alignment from the cab to the bed. See where this is going? GM has a long standing history of covering this up that aren't changed. Even the rear bumper is covered on the truck. Reality is, there's a mild refresh of the front bumper, grill, and headlights, and possibly the taillights, but that's about it. The rear spoiler on the truck just looks unpainted to me.

 

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econometrics Senior Enthusiast

econometrics

Posted
Posted
9 minutes ago, Transient said:

If there's a difference with the spoiler then there's likely a difference with the stamped steel that it bolts to. If that's the case, then a possible improvement may not work for us.

 

While we're at it, let's get giddy about the rear fenders and tailgate being covered, too. If there's a change there it'll only be the tail lights, but maybe it'll improve the body line alignment from the cab to the bed. See where this is going? GM has a long standing history of covering this up that aren't changed. Even the rear bumper is covered on the truck. Reality is, there's a mild refresh of the front bumper, grill, and headlights, and possibly the taillights, but that's about it. The rear spoiler on the truck just looks unpainted to me.

 

Sent from my SM-N960U using Tapatalk

 

 

 

 

 

 

There will definitely be no fix for 2019-2021 windows. They're gonna continue to leak, IMO. Color me jaded, but there's now 202 pages of this thread that span nearly 3 years... and no one has a definitive fix on theirs yet... just a hope and a prayer that their most recent fix will hold. 

 

I'm not sure we'll see a front quarter or rear quarter panel change. All the text trucks have the same body lines as the current trucks. It's hard to see how there would be a very material change to those panels that would still match the door panels. 

 

My guess is the grill will change to include DRL and turn signal integration - like the SUVs, and might have some different looks on the lower bumper and side air dams

 

The taillights on the test truck in the TFL video from over the weekend had the same Silverado LED signature taillights as the current models. You can see the outline of them through the wrapping. . 

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

My main fear is trading for a 22 next year and then having the same damn problem my 19 has. I really don’t think I can do it...

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econometrics Senior Enthusiast

econometrics

Posted
Posted
5 minutes ago, OnTheReel said:

My main fear is trading for a 22 next year and then having the same damn problem my 19 has. I really don’t think I can do it...

? agreed. And how are we going to know until at least 3-4 months into the 2022s being on the road, you know?

Transient Senior Enthusiast

Transient

Posted
Posted
There will definitely be no fix for 2019-2021 windows. They're gonna continue to leak, IMO. Color me jaded, but there's now 202 pages of this thread that span nearly 3 years... and no one has a definitive fix on theirs yet... just a hope and a prayer that their most recent fix will hold. 
 
I'm not sure we'll see a front quarter or rear quarter panel change. All the text trucks have the same body lines as the current trucks. It's hard to see how there would be a very material change to those panels that would still match the door panels. 
 
My guess is the grill will change to include DRL and turn signal integration - like the SUVs, and might have some different looks on the lower bumper and side air dams
 
The taillights on the test truck in the TFL video from over the weekend had the same Silverado LED signature taillights as the current models. You can see the outline of them through the wrapping. . 
I disagree that nobody found a real solution yet. Iirc, somebody used rubber cord and hasn't had a leak yet. They put it into the space between the spoiler and roof.

Btw, I now have 10,8xx miles on my truck, and no leaky rear window.

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econometrics Senior Enthusiast

econometrics

Posted
Posted
2 minutes ago, Transient said:

I disagree that nobody found a real solution yet. Iirc, somebody used rubber cord and hasn't had a leak yet. They put it into the space between the spoiler and roof.

Btw, I now have 10,8xx miles on my truck, and no leaky rear window.

Sent from my SM-N960U using Tapatalk
 

If the rubber cord between the spoiler and roof really does work long-term (which would be great news), then it does give credence to the view that the spoiler is the main culprit in the leaking. 

 

I'm glad you don't have leaks. How many months have you had the truck? Mine started leaking around 10 months after it was built. Knock on whatever wood you can. And keep parking in covered spaces. 

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted

If mine leaks again I’m gonna remove the spoiler and fill that area up with some gorilla glue [emoji16]. Or maybe just make the kids wear rain coats back there [emoji2373]

Wonder if flex seal could get a fix done [emoji2361]


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Transient Senior Enthusiast

Transient

Posted
Posted
If the rubber cord between the spoiler and roof really does work long-term (which would be great news), then it does give credence to the view that the spoiler is the main culprit in the leaking. 
 
I'm glad you don't have leaks. How many months have you had the truck? Mine started leaking around 10 months after it was built. Knock on whatever wood you can. And keep parking in covered spaces. 
6 months. Picked up from the dealer on 7/31.

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Transient Senior Enthusiast

Transient

Posted
Posted
If mine leaks again I’m gonna remove the spoiler and fill that area up with some gorilla glue [emoji16]. Or maybe just make the kids wear rain coats back there [emoji2373]

Wonder if flex seal could get a fix done [emoji2361]


Sent from my iPhone using Tapatalk Pro
I can see the parody commercial on YouTube already

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jnissen Enthusiast

jnissen

Posted
Posted

No leaks here in my 2020 but I’m looking closely at the spoiler mounting holes and the inadequately sealed mounting holes. I’m surprised GM allowed holes at all. The biggest eye opener has been GMs reluctance to properly address this design flaw.

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted
I can see the parody commercial on YouTube already

Sent from my SM-N960U using Tapatalk



I won’t get it in my hair [emoji16]

Might start a gofundme just for the he’ll of it [emoji23]

I bought my truck May 2019, started leaking around 16,500ish miles. Have about 17,500 and it’s at the dealer


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econometrics Senior Enthusiast

econometrics

Posted
Posted

I'll take a leaky rear window over a Ford or a Dodge, period. ? Just my personal preference, of course. 

 

The window leak is a PITA, for sure. But mine has been a slow dripper now for over a year. It's really not damaging anything, now that I have a towel between the rear seat and rear window to absorb the drops. My headliner was stained a little at first, but it seems like the re-seal from the dealer stopped that leaking, just not the window frame leaking. 

 

I still like this truck a lot more than the others. 

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