D-pillar replacement vent (not the cover)

[oneradride]

Can't find the correct name for these anywhere. I'm not looking for the exterior cover, I'm looking for the piece that goes under them.

Black plastic thing with little rubber flaps to release cabin pressure or something. Mine are missing several of the flaps and I occasionally have to travel on gravel. The entire truck fills up with dust because these stupid things obviously don't seal correctly with missing parts/rubber flaps. Anyone know a part number or the correct name for them?

Thanks!!

 

[Doubeleive]

curious as to how it came to be missing pieces? but you could just tape off that one side if you really need to, it just releases the pressure when you shut the doors, one side open should be fine, you might feel a little more air pressure inside when shutting the doors, if you have a dealer nearby you could go in the parts department with your vin number and see if they can look it up on the computer, otherwise a premium junk yard.

 

[oneradride]

Just like I thought... out of 9 holes/ports whatever, TWO of them were covered and both of those fell off as soon as I touched it. Of course there's no part number to be found anywhere on it either... ugh

 

[oneradride]

#15816854 $37.18 EACH from the stealer. Guess I'll find another way to close them off.

Apparently it s problem for a lot of people and trucks...
http://www.duramaxforum.com/forum/2001-2007-gmt800-non-powertrain/814186-leaking-cab-vents.html

 

[Rocket Man]

#15816854 $37.18 EACH from the stealer. Guess I'll find another way to close them off.

Apparently it s problem for a lot of people and trucks...
http://www.duramaxforum.com/forum/2001-2007-gmt800-non-powertrain/814186-leaking-cab-vents.html

I just checked EBay and there's a used one for $20 shipped. Just search GM followed by that part #.

 

[oneradride]

Thanks Mark! I need both sides, my fear is used ones will do exactly the same thing in a very short period of time. I ended up getting 2 new ones from gmpartsgiant.com. Even with shipping it was almost 30 bucks less than the dealer (who would have also had to order them).

 

[Malii Denali]

Just like I thought... out of 9 holes/ports whatever, TWO of them were covered and both of those fell off as soon as I touched it. Of course there's no part number to be found anywhere on it either... ugh

View attachment 197165 View attachment 197166

Hopefully someone can help me in this thread… I have a similar issue but with exhaust fumes getting into the cabin when I’m idling. Do you just pull them off to remove them or are they fastened with any screws or hardware? I tried to take mine off to bring it with me to the dealer but mine seemed fixed on there pretty good.

 

[crosstalk]

Hopefully someone can help me in this thread… I have a similar issue but with exhaust fumes getting into the cabin when I’m idling. Do you just pull them off to remove them or are they fastened with any screws or hardware? I tried to take mine off to bring it with me to the dealer but mine seemed fixed on there pretty good.

So they are not exhaust vents?

I have a 2004 Tahoe where a previous owner had the tailpipe extended to make sure the exhaust fumes escaped the body when idling.

 

[B-train]

They are cabin air pressure vents for when a door is closed, windows open, blower on, etc. They must flap fairly rapidly sometimes during their life and just fall apart. I had the same issue of dust intrusion while overlanding my 2008 Denali. Traced it back to the rear hatch area and found what OP did. I just used masking tape to seal it at the time. It worked, but you'll get an ear pop when you have pressure changes in the cabin while driving. Also cured the low speed exhaust smell issue too.

I'd just put in new OEM for $80 and be done with it.

 

[Grady_Wilson]

Some great info here with the part numbers for an item that is a common problem.
Responding mainly as a marker so I can come back to it when my Denali has these issues.

 

[89Suburban]

I need these too. I popped off my accents to clean underneath of them and I have one of the flaps missing on my drivers side. Glad this got bumped, thanks.

 

[tooleyondeck]

Yet another item I have not considered on my Denali. I will have to pop my covers off and check them. Solid info!

 

[opfor2]

Can't find the correct name for these anywhere. I'm not looking for the exterior cover, I'm looking for the piece that goes under them.

Black plastic thing with little rubber flaps to release cabin pressure or something. Mine are missing several of the flaps and I occasionally have to travel on gravel. The entire truck fills up with dust because these stupid things obviously don't seal correctly with missing parts/rubber flaps. Anyone know a part number or the correct name for them?

Thanks!!

View attachment 197150

2000-2014 GM Body Pressure Relief Valve 15816854 GM | GMPartsDirect.com

2000-2014 GM part # 15816854 - Body Pressure Relief Valve

www.gmpartsdirect.com

I need to replace the drivers side also and ordered two used OEM ones from eBay for $ 14.00 but they are called "Pressure Relief Valves"


New Part # GM 15816854

Old Part # GM 15756444

 

[opfor2]

Good morning, all, so I received my two "body Pressure relief" valves from a seller on eBay yesterday (GM 15756444) and went to replace the old ones and noticed that the ones that were presently installed in my 2011 be very different (see picture old on the left and new on the right) The old ones have NO rubber valve flaps installed while the new ones did. Just kind of weird and this would explain my dust intrusion into the rear of the truck.