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Discussion Starter #1
So I detailed the trunk this weekend and when I lifted the spare tire, there was about an inch of water inside. Odd thing is, the trunk carpet or items inside are not wet. Any insight to this??


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What year is your Impala?
There are earlier threads on this problem. Generally have been a bad rear taillight gasket in early model years. Or maybe trunk weatherstrip. Or if you have a sunroof, possible problem with drain hoses..good luck
 

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So I detailed the trunk this weekend and when I lifted the spare tire, there was about an inch of water inside. Odd thing is, the trunk carpet or items inside are not wet. Any insight to this??


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Here you go: https://gm.oemdtc.com/5418/14047-water-leak-in-trunk-2014-chevrolet-impala

I own a 2014 Impala 2LTZ - purchased new. The taillight gaskets were replaced before we took delivery of the car. An example of poor quality by GM in a new car that caused a lot of damage and frustration for owners.
 

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Discussion Starter #5
What year is your Impala?
There are earlier threads on this problem. Generally have been a bad rear taillight gasket in early model years. Or maybe trunk weatherstrip. Or if you have a sunroof, possible problem with drain hoses..good luck


2014. Ltz


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Link doesn’t work


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The link worked a moment ago - but loaded slow.

Here is the link again: https://gm.oemdtc.com/5418/14047-water-leak-in-trunk-2014-chevrolet-impala

When you change the tail light gaskets, you must partially remove the rear bumper cover (fascia). You remove fasteners at the rear of the rear wheel well openings (where the fascia is attached), then gently pull the cover away from below the quarter panels and tail lights. There are “push” tabs at the quarter-panel seams, and just below the tail lights that fit into moulded openings. The fascia tabs are about 1 - 1 1/2 inches wide.

Then, remove the taillight fasteners and remove the tail lights. The lamp assemblies must be placed faced down on a bench with a towel to change the gaskets, which have self-advisive backings.

Then, replace the lamp assemblies - and gently push-in the tabs for the fascia and replace the fasteners inside the wheel well.
 

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I had this issue in my 2016 ltz. After taking them off it was obvious from the dirt on one of them it was the cause. Replaced both, completely dry since. I think mine had only just started recently leaking,or maybe leaked a bit from the car wash. Hardest part was not really having the proper tool to take out the torx screws on the bumper, not much room.

I used that service doc and a couple of videos

bumper

leak

and a note from another thread:

"The improved parts are 23211647 LH and 23211648 RH - I think they are special order and cost less then $10 each.

If your parts dept looks up the part by car and year it still lists the original parts 23453698 and 99"

23211647 SEAL, RR BODY STRUCTURE STOP LP (LH) 1
23211648 SEAL, RR BODY STRUCTURE STOP LP (RH) 1
 

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Very common as said above taillight gaskets
 

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Discussion Starter #10
I had this issue in my 2016 ltz. After taking them off it was obvious from the dirt on one of them it was the cause. Replaced both, completely dry since. I think mine had only just started recently leaking,or maybe leaked a bit from the car wash. Hardest part was not really having the proper tool to take out the torx screws on the bumper, not much room.

I used that service doc and a couple of videos

bumper
https://www.youtube.com/watch?v=CknXP9T7ejA&list=LLEykDXs80vomes7T8jAZshA&index=2&t=0s
https://www.youtube.com/watch?v=FPFBzXE3llU&list=LLEykDXs80vomes7T8jAZshA&index=5&t=0s

leak
https://www.youtube.com/watch?v=yVFwrT_mAr4&list=LLEykDXs80vomes7T8jAZshA&index=3&t=0s
https://www.youtube.com/watch?v=4FlmtKynhVc&list=LLEykDXs80vomes7T8jAZshA&index=4&t=0s

and a note from another thread:

"The improved parts are 23211647 LH and 23211648 RH - I think they are special order and cost less then $10 each.

If your parts dept looks up the part by car and year it still lists the original parts 23453698 and 99"

23211647 SEAL, RR BODY STRUCTURE STOP LP (LH) 1
23211648 SEAL, RR BODY STRUCTURE STOP LP (RH) 1


Thank you all. Just ordered both of them.


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Discussion Starter #11
I had this issue in my 2016 ltz. After taking them off it was obvious from the dirt on one of them it was the cause. Replaced both, completely dry since. I think mine had only just started recently leaking,or maybe leaked a bit from the car wash. Hardest part was not really having the proper tool to take out the torx screws on the bumper, not much room.

I used that service doc and a couple of videos

bumper
https://www.youtube.com/watch?v=CknXP9T7ejA&list=LLEykDXs80vomes7T8jAZshA&index=2&t=0s
https://www.youtube.com/watch?v=FPFBzXE3llU&list=LLEykDXs80vomes7T8jAZshA&index=5&t=0s

leak
https://www.youtube.com/watch?v=yVFwrT_mAr4&list=LLEykDXs80vomes7T8jAZshA&index=3&t=0s
https://www.youtube.com/watch?v=4FlmtKynhVc&list=LLEykDXs80vomes7T8jAZshA&index=4&t=0s

and a note from another thread:

"The improved parts are 23211647 LH and 23211648 RH - I think they are special order and cost less then $10 each.

If your parts dept looks up the part by car and year it still lists the original parts 23453698 and 99"

23211647 SEAL, RR BODY STRUCTURE STOP LP (LH) 1
23211648 SEAL, RR BODY STRUCTURE STOP LP (RH) 1


Thank you all. Just ordered both of them.


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So I detailed the trunk this weekend and when I lifted the spare tire, there was about an inch of water inside. Odd thing is, the trunk carpet or items inside are not wet. Any insight to this??


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You are not alone....I purchased my 2014 Impala LT January 5, 2018 and left for Florida in a snowstorm the next day. When we arrived in Florida 5 days late and opened the trunk (for the first time since we left NY) not only was the floor of the trunk wet but the spare tire well was half full of water. To make a long story short the right tail light was replaced (after waiting a week for a complete taillight unit). I left the trunk open in the sun for the week, finally dry, no more leaks....yea...
 

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Discussion Starter #13
"The improved parts are 23211647 LH and 23211648 RH - I think they are special order and cost less then $10 each.

If your parts dept looks up the part by car and year it still lists the original parts 23453698 and 99"

23211647 SEAL, RR BODY STRUCTURE STOP LP (LH) 1
23211648 SEAL, RR BODY STRUCTURE STOP LP (RH) 1

Thank you! There certainly is a big difference with the improved gaskets. Pretty easy job. First one took about 25 minutes. The second only 15.





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Holy crap that is a huge difference!

How hard was it to unsnap and then snap the bumper back together?
 
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What year is your Impala?
There are earlier threads on this problem. Generally have been a bad rear taillight gasket in early model years. Or maybe trunk weatherstrip. Or if you have a sunroof, possible problem with drain hoses..good luck
I have water in my trunk 2015 Impala. The water is coming in through the gasket on the rear lights. I was quoted $410 to repair it. It cost me $140 to find the leak as well. It took me only 60 seconds on google to see it. The car only has 47,000 km on it.
 

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I replaced both of mine litterally a week ago, i love how thick the new ones are compared to the factory, also remember to clean any adhesive really good from the body panel and the lamp housing with a nylon tip brush so paint doesnt get scratched!. ontop of all the lil rust spots I sprayed some rust inhibitor cause that lil orange color was already popping out. Going to have to get that sandblasted, over all I think whoever does this fix wont see any water ever again. ?
 

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I’m kind of slow, where is a solid online site to buy the replacement parts? I’m new to fixing my car myself, but this trunk leak seems like an easy fix. Way cheaper that what the dealership is charging me. Thanks in advance.
 
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