Jump to content

Rear window leak

Demon
 Share

Recommended Posts

econometrics Senior Enthusiast

econometrics

Posted
Posted
14 minutes ago, gemarsh said:

I understand the solid rear window. But according to some of these pictures with stained headliners, wouldn't the water be coming thru that cheezy gasket and then on thru that yellow tab or bolt?

Yeah, this is why I've never bought the theory that the spoiler was the leak culprit. If it was the spoiler, we would have a lot more reports of leaks from the solid window owners. 


Also, if that was the case, then GM wouldn't have decided to have their techs smear "sealant" all over the top of our windows as a first-step in the fix process. 

  • Replies 3.5k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

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.  

Posted Images

SPASierra Enthusiast

SPASierra

Posted
Posted

It's really two separate issues, and the TSB calls it out.  If the headliner is soaked, then it is the bolts/tabs/gaskets for the spoiler.  If it is just water dripping off of the rails, then it is getting in via the cracked frame or lack of sealant between the glass and frame.

 

I think that the best approach if you want to keep the slider would be:

  1. Remove spoiler and replace spoiler tabs/gaskets
  2. Remove and replace window, making sure that new window is fully sealed on the frame
  3. Seal top of window per TSB
  4. Reinstall Spoiler

The problem with that approach is that it is detail oriented, and requires a tech that gives a sH@t

  • Like 3
SilveradoRST Enthusiast

SilveradoRST

Posted
Posted

^^^^^^ Yup!

To add to an already perfect summary above.  
 

There is a high likelihood the gasket will get mangled when the tech first tries to remove the spoiler to fix the cracked plastic frame.  So now the situation is compounded by a bad gasket and maybe the sealant wasn’t done right by the tech as well.  Now you have 2 different leak points.  

RWTJR Enthusiast

RWTJR

Posted
Posted
1 hour ago, UGADawgs said:

There sadly appears to only be one way to fix these leaks.....  Sell it :(

And sadly, that's exactly what I will do if they can't fix my leak. I really like this truck but I won't stand for a leak they can't fix (or make worse). I'll give them the opportunity to make it right but if they can't, it's gone.

 

I am just hoping for a successful repair. I pick it up today and we have rain predicted for Friday, we'll see.

 

JMHO

No expertise implied or expressed

Transient Senior Enthusiast

Transient

Posted
Posted

Anything can be fixed with the right knowledge, tools, and enough money. It's the money part that GM is focused on. Therefore, the question becomes, "How much do you want to spend?"

 

Sent from my SM-N960U using Tapatalk

 

 

 

 

Jglew82 Enthusiast

Jglew82

Posted
Posted

2021 Sierra owner here, just a touch over 1,000 miles on the clock joining this godforsaken thread. Taking it in this week. Not happy.

  • Sad 1
f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted
1 hour ago, Jglew82 said:

2021 Sierra owner here, just a touch over 1,000 miles on the clock joining this godforsaken thread. Taking it in this week. Not happy.

:(

Blue5.3l Enthusiast

Blue5.3l

Posted
Posted
13 hours ago, Jglew82 said:

2021 Sierra owner here, just a touch over 1,000 miles on the clock joining this godforsaken thread. Taking it in this week. Not happy.

After seeing a few jobs that may dealer sent out and the time it too took to repair. I’m glad that I went to a solid right away for the piece of mind. Since I ordered my truck. I had my local glass guy source the GM solid window before hand. My 2021 had less then 200miles on it when the window was pulled. The glass guy did a wonderful job and can’t even tell it was ever changed out. I’m getting a cap so the slider wasn’t that important but knowing of the leaks I wasn’t going to have the dealers glass company touch my truck. I even asked my dealer if the truck leaks could they put a solid in and was told GM wouldn’t approve even thou it’s cheaper then the slider. 

SPASierra Enthusiast

SPASierra

Posted
Posted

Would you mind sharing the cost of the solid slider? I’m thinking about going this route within the next month.


Sent from my iPhone using Tapatalk

Blue5.3l Enthusiast

Blue5.3l

Posted
Posted
48 minutes ago, SPASierra said:

Would you mind sharing the cost of the solid slider? I’m thinking about going this route within the next month.


Sent from my iPhone using Tapatalk

In the end it cost $675 for the factory GM window. Could have gotten the aftermarket window but wasn’t much cheaper. Maybe $50 total difference and the good glass guy said just go GM factory looking with being so new. This guy has a good local following and can’t even tell it was changed. The chain glass place with a aftermarket window was just under $500. I wasn’t confident in the chain places. Went with you get what you pay for. 

SPASierra Enthusiast

SPASierra

Posted
Posted
34 minutes ago, Blue5.3l said:

In the end it cost $675 for the factory GM window. Could have gotten the aftermarket window but wasn’t much cheaper. Maybe $50 total difference and the good glass guy said just go GM factory looking with being so new. This guy has a good local following and can’t even tell it was changed. The chain glass place with a aftermarket window was just under $500. I wasn’t confident in the chain places. Went with you get what you pay for. 

Thanks for the info!  I had looked up the rear glass on GM Parts Direct, and they have it for $330.  I'm sure shipping will cost a pretty penny as well.  There is a local glass shop here that everyone recommends for windshields (vs Safelite), so I will give him a call.  If you happen to have the part number for the rear glass, can you tell me if this is what you got?  https://www.gmpartsdirect.com/oem-parts/gm-back-glass-84008420?c=Zz1ib2R5JnM9Z2xhc3MtYW5kLWhhcmR3YXJlLWJhY2smbD00Jm49QXNzZW1ibGllcyBQYWdlJmE9Z21jJm89c2llcnJhLTE1MDAmeT0yMDE5JnQ9c2x0JmU9NS0zbC12OC1nYXM%3D

Blue5.3l Enthusiast

Blue5.3l

Posted
Posted
17 minutes ago, SPASierra said:

Thanks for the info!  I had looked up the rear glass on GM Parts Direct, and they have it for $330.  I'm sure shipping will cost a pretty penny as well.  There is a local glass shop here that everyone recommends for windshields (vs Safelite), so I will give him a call.  If you happen to have the part number for the rear glass, can you tell me if this is what you got?  https://www.gmpartsdirect.com/oem-parts/gm-back-glass-84008420?c=Zz1ib2R5JnM9Z2xhc3MtYW5kLWhhcmR3YXJlLWJhY2smbD00Jm49QXNzZW1ibGllcyBQYWdlJmE9Z21jJm89c2llcnJhLTE1MDAmeT0yMDE5JnQ9c2x0JmU9NS0zbC12OC1nYXM%3D

I’ll have to look later to see if the receipt had the part number. I believe it had the cost for the window. My glass guy just ordered the window from the dealer. Here’s another window option. 
 

https://www.gmpartsdirect.com/oem-parts/gm-back-glass-84242469?c=Zz1ib2R5JnM9Z2xhc3MtYW5kLWhhcmR3YXJlLWJhY2smbD03Jm49QXNzZW1ibGllcyBQYWdlJmE9Z21jJm89c2llcnJhLTE1MDAmeT0yMDIwJnQ9c2x0JmU9Ni0ybC12OC1nYXM%3D

 

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted

Welp I am now a member of the exclusive club [emoji2959]

4e8266e8954e30d2f5267b672ba017b1.jpg


Sent from my iPhone using Tapatalk Pro

  • Sad 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • CamGTP
      Gas Prices

      By CamGTP · Posted

      Paid $2.72 for E85 today.
    • Atlas
      Gas Prices

      By Atlas · Posted

      Welcome back! No, it definitely doesn't pass the sniff test. Even "ceasefire" needs an alternative definition these days.    $5.29 at Kroger today
    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That makes sense, and I think you are describing the real product problem. Capturing data is the easy part. If the owner or technician has to manually dig through five minutes of millisecond-level logs, the product has already failed. The device would be at the ECM harness, not at the OBD port, so I agree that data retrieval and event marking need to be thought through carefully. The way I am thinking about the architecture is: The recorder itself should not depend on a phone, app, Bluetooth, Wi-Fi, or cloud connection to capture the event. It should always keep a local rolling buffer and lock the event locally. A button, phone app, or small cabin device would only act as an event marker. If the driver feels a stumble and presses the button 10–30 seconds later, the pre-buffer has to already contain the useful data. For data retrieval, the practical options would be a sealed service USB lead, Wi-Fi download, or a phone/cabin companion device. I would not expect the owner to remove the ECM-side module or work with raw files directly. The cloud or AI side would be for interpretation, not for capturing the event. The truck may have no connection when the issue happens, so the evidence has to be saved locally first. After that, cloud processing could help decode the data, compare it against baselines, and generate a readable report. For the first version, I would keep the automatic triggers conservative and objective: driver event marker bus-off error passive voltage drop / brownout device reset FIFO or queue overflow a normally periodic message disappearing side-to-side communication mismatch, if the topology supports that For “learning normal,” I agree with your point, but I would not want to overclaim it as automatic root-cause diagnosis at first. A realistic first step would be learned baseline comparison for that specific vehicle and operating condition. For example, a value would only be compared against similar conditions: RPM range load / MAP throttle position gear / vehicle speed coolant and oil temperature battery voltage AFM/DFM state, if decoded and validated Then the report could flag things like: this periodic message disappeared compared with its normal timing this value deviated from this vehicle’s normal range under similar conditions the same abnormal pattern repeated after the same type of event the anomaly occurred together with voltage, oil-pressure, misfire, or communication changes But I would still call that “abnormal pattern detected,” not “replace this part,” unless there is enough validated repair data behind it. So the intended product would not be “here is a huge log.” It would need to be an event package: what triggered the capture how much pre/post data was preserved what changed before and after the event whether the device itself reset, overflowed, or saw a bus error selected graphs around the event raw data only as supporting evidence From your perspective, what would make this kind of report useful instead of just another datalog? For example: What are the top 5 parameters or events you would want highlighted first? Would you trust a learned baseline for that specific vehicle, or would you prefer fixed thresholds? How much false-positive flagging would be acceptable before you stopped looking at the reports? What would a one-page report need to show for an independent shop to take it seriously? For misfire, AFM/DFM, oil pressure, or U-code complaints, what would you want the tool to flag automatically?
    • scotthvac.net
      2022-24 halogen - led grille swap

      By scotthvac.net · Posted

      2024 Silverado 2500 HD LTZ grille no camera Parts list   84603331 84913656 84913657 84913654 84913655 84911567 84911568 85646092 85646093 85797921 85797922   11570637  x10-15   grille/bumper bolts 11546500  x10      grille clips 11571006  x10      push/retainer clips 11546454  x6       nut retainers 11611609  x6       M5 bolts 11610700  x6       molding/trim retainers
    • davester
      Replacement Radiator

      By davester · Posted

      And use RA's 5% discount code if you buy from them.  google for the code, one is always available.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...