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Rear window leak

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lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted (edited)
1 hour ago, ShamrockShooter said:

I thinking this has to be a freeze thaw issue.
 

Bingo.  If the truck didn't leak for a while and then starts all of the sudden, it is being acted on by outside factors.  It's either sealed or it's not.  

 

Let's take a poll to verify this theory...where are all these leaking trucks located geographically? 

Edited by lapoolboy
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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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ShamrockShooter Senior Enthusiast

ShamrockShooter

Posted
Posted
Out of curiosity,
 
Since this issue seems to affect all build dates. Has anyone noticed if this is happening to both US and Mexico assembled trucks? Majority I've seen here seem to be the Ft Wayne builds.
Both of my trucks were 1Vin ft Wayne

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ShamrockShooter Senior Enthusiast

ShamrockShooter

Posted
Posted
Bingo.  If the truck didn't leak for a while and then starts all of the sudden, it is being acted on by outside factors.  It's either sealed or it's not.  
 
Let's take a poll to verify this theory...where are all these leaking trucks located geographically? 
Or the plastic frame of the rear slider cracked from hitting a pot hole or the truck flexing pulling in or out of my steep driveway

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lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted
Just now, ShamrockShooter said:

Or the plastic frame of the rear slider cracked from hitting a pot hole or the truck flexing pulling in or out of my steep driveway

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Both possibilities I suppose but they are still outside forces.  Do you notice any cracking?

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

I dunno. Mine was fine throughout all of last winter. Didn’t leak until August. Just completely out of the blue. Definitely wasn’t any freezing or major temperature swings going on. 
 

If I were to hazard a guess, the truck just ain’t stiff enough. The roof area flexes over time and eventually breaks the seal and/or cracks the window channel.
 

Still can’t think of any explanation for why the issue is still happening though. The window was allegedly redesigned and suppliers changed. All I know is that the “first year of a new redesign” card is expired. 100% unacceptable that a thread created in November of 2018 is still claiming victims 13 months later, on the next model year!

f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

Big time rain in so cal tonight. Well see how the new fix goes GM just did on my rear leak. I’m overseas , call the wife tomorrow to check k on my truck.  Cmon GM I hope you fixed it right. 

JohnCasey Enthusiast

JohnCasey

Posted
Posted (edited)
7 hours ago, Tomtom87 said:

Out of curiosity,

 

Since this issue seems to affect all build dates. Has anyone noticed if this is happening to both US and Mexico assembled trucks? Majority I've seen here seem to be the Ft Wayne builds.

Mine is a Mexican build and I’m in Easten NC. 

Edited by JohnCasey
Centrebaseball Enthusiast

Centrebaseball

Posted
Posted
7 hours ago, lapoolboy said:

Bingo.  If the truck didn't leak for a while and then starts all of the sudden, it is being acted on by outside factors.  It's either sealed or it's not.  

 

Let's take a poll to verify this theory...where are all these leaking trucks located geographically? 

Ft Wayne build. 
kentucky

leaked November 1 - still hadn’t had any freezes or temp changes.  And it is garage kept at night

ShamrockShooter Senior Enthusiast

ShamrockShooter

Posted
Posted

That makes me think pulling in and out of my steep driveway every day which causes quite a bit of flex in the truck might be what broke the seal or plastic frame on my back window. Just the morning fog/dew on the truck today was enough to make it start dripping in so must be a big opening.

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JohnCasey Enthusiast

JohnCasey

Posted
Posted

I'm inclined to think its a flexing issue with the body too.  We've had a similar issue with a Jet Vac truck of ours with the frame flexing and ripping the radiator apart. We crossed braced the radiator with 1/4" steel and haven't had an issue with that one since.  The dealership is swearing they are testing it the day after they fix it but it leaks after I drive it 10-15 miles and cross over two railroad tracks. 

econometrics Senior Enthusiast

econometrics

Posted
Posted

Well, just dropped my RST off for the leak. It was dripping when I dropped it off, so that was an easy explanation. 
 

Largest volume Chevy dealer in America, and “dealer of the year” in 2018, and my service advisor said this is the first leaking window he has seen. Oh, boy. ??‍♂️

Brileavi Enthusiast

Brileavi

Posted
Posted
1 hour ago, econometrics said:

Well, just dropped my RST off for the leak. It was dripping when I dropped it off, so that was an easy explanation. 
 

Largest volume Chevy dealer in America, and “dealer of the year” in 2018, and my service advisor said this is the first leaking window he has seen. Oh, boy. ??‍♂️

Just dropped mine off dealer said they have done 4 already   

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econometrics Senior Enthusiast

econometrics

Posted
Posted
2 hours ago, Brileavi said:

Just dropped mine off dealer said they have done 4 already   

I'm 100% sure the dealer has done many of these repairs, so maybe my service advisor himself is new or had not seen one yet. 

ShamrockShooter Senior Enthusiast

ShamrockShooter

Posted
Posted
Well, just dropped my RST off for the leak. It was dripping when I dropped it off, so that was an easy explanation. 
 
Largest volume Chevy dealer in America, and “dealer of the year” in 2018, and my service advisor said this is the first leaking window he has seen. Oh, boy. [emoji2359]
Please tell me you didn't take it to Bob Johnson Chevy in Rochester.

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econometrics Senior Enthusiast

econometrics

Posted
Posted
1 minute ago, ShamrockShooter said:

Please tell me you didn't take it to Bob Johnson Chevy in Rochester.

Sent from my Pixel 4 using Tapatalk
 

Ha, no. I'm in DFW. It's at Classic Chevrolet in Grapevine, TX. 

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