Rear window leak

[brandonleg]

Mine's a leaker now, too.  2020 ltz built 8/19 in Ft. Wayne.  Took delivery on 1/11, 2000 miles ago.

Glass is a Fuyao E4, M1235, 43R 000072.

I caught it early, no headliner damage or rust.  I'm gonna try the permatex fix, maybe buy some time until GM actually fixes the issue.  Love the truck, wish it could be driven in the rain. 

[BIGDOGx]

1 hour ago, brandonleg said:

Mine's a leaker now, too.  2020 ltz built 8/19 in Ft. Wayne.  Took delivery on 1/11, 2000 miles ago.

Glass is a Fuyao E4, M1235, 43R 000072.

I caught it early, no headliner damage or rust.  I'm gonna try the permatex fix, maybe buy some time until GM actually fixes the issue.  Love the truck, wish it could be driven in the rain. 

I would bring it in to at least have a record of them seeing it leaking, you start messing around with this stuff yourself your going to most likely own it if you know what i mean.

[SilveradoRST]

So after getting my window goop with Kent sealant, it’s leaking again.  But this time it only leaks after a long rain.  Survives a touch-less car wash however.   Wondering if anyone has a copy of the official instructions to lower the headliner?  
 

I’d like to see maybe if I can spot the breach point add some more sealant.  I’d rather delay having to go back to the dealer until GM comes up with a more permanent fix. 

[anthony2558]

mine not leaking after it got replaced, but a co worker with a 19 LT was telling me that he had some smoking/burning smell and noticed it was coming from the rear defroster electrical, and that's when he realized his was leaking also

 

 

[brandonleg]

7 hours ago, SilveradoRST said:

Wondering if anyone has a copy of the official instructions to lower the headliner?  

Headliner.pdf

 

[brandonleg]

Some of the linked procedures in the pdf above...

 

 

Center Pillar Lower Trim.pdfFront Belt Anchor Plate.pdfRear Seat Belt Retractor.pdfBody side rear garnish.pdfcenter pillar upper.pdfRoof Console.pdfSIR enable disable.pdf

[hotrodz37]

So after getting my window goop with Kent sealant, it’s leaking again.  But this time it only leaks after a long rain.  Survives a touch-less car wash however.   Wondering if anyone has a copy of the official instructions to lower the headliner?  
 
I’d like to see maybe if I can spot the breach point add some more sealant.  I’d rather delay having to go back to the dealer until GM comes up with a more permanent fix. 

My thought is almost every leak can be fixed with the Kent sealant (other than a cracked window frame) but it’s the incompetence of the techs that is leading to them leaking after this. If a proper bead was placed on the top seam of the window and then leveled out with a finger or dowel or something to make sure it spreads evenly and goes into any void it would probably work. The sloppy job by the techs with it just arbitrarily gooped along the window isn’t doing us any favors.

Like previously stated, I fixed mine myself with the permatex window and glass sealant which is a lot more viscous and goes into every nook and cranny - this is after I had the Kent sealant done by the dealer the first time.


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[Fizzery6]

Does anyone know if you have to drop the entire headliner, or can you just lower the back side to remove the roof spoiler and seal the rear window?  The GM TSB pics seem to show just lowering the back of the headliner. But it wants to hang up on rear window slide channel and I don’t want to crease the headliner. 

[OnTheReel]

17 minutes ago, Fizzery6 said:

Does anyone know if you have to drop the entire headliner, or can you just lower the back side to remove the roof spoiler and seal the rear window?  The GM TSB pics seem to show just lowering the back of the headliner. But it wants to hang up on rear window slide channel and I don’t want to crease the headliner. 

Dealer said they couldn’t just drop the back of my headliner, wasn’t enough room to work without creasing it. So they took the whole thing down. Take that for what it is.

[hotrodz37]

Headliner.pdf
 

These are awesome, thanks Brandon. Do you happen to have any of these on the sunroof? After mine was repaired, assuming they dropped the rear of the headliner, the sunroof shade is scraping in the dome light area. Would love to see a diagram to see if it’s off the track. I have a borescope I am going to drop the dome light and see what’s going on in there.


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[Josef]

While everyone is self quarantining they should watch “American Factory” on Netflix. It’s about fuyao glass company.  

[Mike_F]

 

Quote

My thought is almost every leak can be fixed with the Kent sealant (other than a cracked window frame) but it’s the incompetence of the techs that is leading to them leaking after this. If a proper bead was placed on the top seam of the window and then leveled out with a finger or dowel or something to make sure it spreads evenly and goes into any void it would probably work. The sloppy job by the techs with it just arbitrarily gooped along the window isn’t doing us any favors.

Like previously stated, I fixed mine myself with the permatex window and glass sealant which is a lot more viscous and goes into every nook and cranny - this is after I had the Kent sealant done by the dealer the first time.

Just picked up my ordered 2020 LTZ crew cab.

Going to add a camper cap.

The question is to all those who have endured this leaking problem.

Would you add the flowable sealant to a new truck without a leak as added insurance for future problems?

Really don't want to have to pull the cap back off for a repair and with the cap installed you probably won"t see any extra sealant anyway.

After 125 pages, I am just trying to be proactive for a potential problem that truly seems be "Rocket Science " for GM engineers to solve.

 

Thanks 

Mike

[hotrodz37]

 

My thought is almost every leak can be fixed with the Kent sealant (other than a cracked window frame) but it’s the incompetence of the techs that is leading to them leaking after this. If a proper bead was placed on the top seam of the window and then leveled out with a finger or dowel or something to make sure it spreads evenly and goes into any void it would probably work. The sloppy job by the techs with it just arbitrarily gooped along the window isn’t doing us any favors.

Like previously stated, I fixed mine myself with the permatex window and glass sealant which is a lot more viscous and goes into every nook and cranny - this is after I had the Kent sealant done by the dealer the first time.

Just picked up my ordered 2020 LTZ crew cab.
Going to add a camper cap.
The question is to all those who have endured this leaking problem.
Would you add the flowable sealant to a new truck without a leak as added insurance for future problems?
Really don't want to have to pull the cap back off for a repair and with the cap installed you probably won"t see any extra sealant anyway.
After 125 pages, I am just trying to be proactive for a potential problem that truly seems be "Rocket Science " for GM engineers to solve.
 
Thanks 
Mike

I honestly wouldn’t touch it until it actually started leaking. There are a lot of leakers out there but it’s a small sample size of the hundreds of thousands of trucks out there. Who knows, you might get lucky and get a dry one!


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[Mike_F]

hotrodz37

 

Thanks for your fast reply.

 

Guess I will let it roll as is and lean on my Irish heritage a bit.

Hopefully this is my last post on this subject. LOL

 

Good Luck to all.

[ShamrockShooter]

Just picked up my ordered 2020 LTZ crew cab.
Going to add a camper cap.
The question is to all those who have endured this leaking problem.
Would you add the flowable sealant to a new truck without a leak as added insurance for future problems?
Really don't want to have to pull the cap back off for a repair and with the cap installed you probably won"t see any extra sealant anyway.
After 125 pages, I am just trying to be proactive for a potential problem that truly seems be "Rocket Science " for GM engineers to solve.
 
Thanks 
Mike

I honestly wouldn’t touch it until it actually started leaking. There are a lot of leakers out there but it’s a small sample size of the hundreds of thousands of trucks out there. Who knows, you might get lucky and get a dry one!


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FYI if your truck has the camera in the rear brake light it won't work with the truck cap.

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