[jimmartz]

Hello all,

I noticed some water in the trunk of my 2017 Impala.
Pulled back the covers and no obvious signs at the tail lights,
I think they fixed the tail light gasket problem by 2017...
Looking around I found an oval hole on the outside of the trunk
lid gasket, see photo below. That hole goes right into the trunk,
right above some computer module. I seen the same size hole
on the side behind the tail light. I can't seem to find the number
on this part to replace it, can someone tell me this part#?
I found part# 15259076 but from the photos this don't look right.
I need an oval plug. Anyone know what the correct plug is?

Thanks for any help,
Jim

 

[Stealth711]

That hole is outside of the trunk seals gaskets
..... have a 2018 Impala Premier.....had water in trunk Chevy replaced taillight seals, no more water....

Sent from my SM-N986U using Tapatalk

 

[1999 White C5 Coupe]

Hello all,

I noticed some water in the trunk of my 2017 Impala.
Pulled back the covers and no obvious signs at the tail lights,
I think they fixed the tail light gasket problem by 2017...
Looking around I found an oval hole on the outside of the trunk
lid gasket, see photo below. That hole goes right into the trunk,
right above some computer module. I seen the same size hole
on the side behind the tail light. I can't seem to find the number
on this part to replace it, can someone tell me this part#?
I found part# 15259076 but from the photos this don't look right.
I need an oval plug. Anyone know what the correct plug is?

Thanks for any help,
Jim
View attachment 163671

I have a 2014 Impala 2LTZ, purchased new.

It does not have the hole in the body as you have pictured. Did you buy the vehicle used? I believe someone has drilled the hole to run some type of cable (such as a temporary cable for a roof or glass mount antennae). You can see rust beginning to form on the edges of the hole.

There is no “correct’ factory body plug for this hole - as it was not drilled by the factory. You may find some plastic generic body plugs in auto parts stores.

You may want to file the rust off the edge of the hole, then apply some type of primer and/or paint to stop the rust. You could use silicone sealer with a body plug you find at an auto parts store to seal the hole.

Until then, you may want to cover the hole with high-quality duct tape to prevent water entry.

 

[jimmartz]

The hole does look like it was punched after it was painted. The hole is oval, so they would have had an oval punch, or drilled it and ground it oval.
I was not the first owner, so maybe someone put an antenna in before.
Anyway, I could not find the right size oval plug so I ordered some round ones and will just fill the gap silicone.

Thanks
Jim

 

[chevyallday]

I agree w/ the other guy's about the plug.....but the gaskets for the tail lights are...L 23211647 and R 23211648...

 

[jimmartz]

Update:

Plugged that hole up, but still getting wet.
Next I will replace the tail light gaskets.
The part# above I think are not for the newer models.
The 2017 Impala seems to be these part#:
left 84527173
right 84527174

Jim,


Hello all,

I noticed some water in the trunk of my 2017 Impala.
Pulled back the covers and no obvious signs at the tail lights,
I think they fixed the tail light gasket problem by 2017...
Looking around I found an oval hole on the outside of the trunk
lid gasket, see photo below. That hole goes right into the trunk,
right above some computer module. I seen the same size hole
on the side behind the tail light. I can't seem to find the number
on this part to replace it, can someone tell me this part#?
I found part# 15259076 but from the photos this don't look right.
I need an oval plug. Anyone know what the correct plug is?

Thanks for any help,
Jim

[/QUOTE]

 

[hisstory32]

Do you have a moon roof? Might check its drains if you still get water after replacing gaskets.

 

[jimmartz]

Update #2:

Replaced the tail light gaskets. The bolts seemed lose and it did look like the gaskets was leaking.
But, still leaking into the trunk...
So, I closed myself in the trunk with a flashlight and had my wife spray with a hose.
The seam that runs below the left tail light was leaking a little in 2 places.
Now in the Car Fax when I bought the car it did list rear end accident.
So, maybe even though it looks ok on the outside, maybe the seam seal got opened up.

I got to take the bumper cover off and seal this seam.
What is the correct thing to use to seal these seams?
Will a good silicon work good for this?

Thanks,
Jim

 

[sheila]

^ I would think so...

 

[skyking]

No need to remove the tail light assemblies. Remove the spare tire - find the low spot in the tire well base toward the back of the tire well and drill a 1/4" dia. hole.