Vented vs. Non-Vented doors

[618 Syndicate]

Can you be a little more specific? What do you mean by "the vent in the body itself?"

They're in the D pillars. You can hear them vent if you're standing outside the truck when the door is closed.

 

[yevgenievich]

Can you be a little more specific? What do you mean by "the vent in the body itself?"

Inside rear

 

[kennythewelder]

Ok, so there are vents on our trucks, there just in a different place. That makes sense. As mentioned, the pressure of closing the door, has to be released somehow.

 

[PlayingWithTBI]

So it seems like all the '95+ GMT400s had vents in the door panels. Not sure about '88-'94...

My 88 does too, here's the vent in the door panel. It has a rubber flap behind it to allow positive pressure out but seal it off when negative so you won't get so much dust/dirt inside. There's louvers in the bottom of the door itself.

You must be registered for see images attach

 

[df2x4]

Thanks guys. So the trucks don't have these vents in the pillars, just the SUVs?

If so then it seems like the conclusion is that trucks should have the vented door vent covers, and the SUVs should have the blank ones. Looks like I'm good.

 

[df2x4]

There's louvers in the bottom of the door itself.

Do you mean like this?

You must be registered for see images attach

I saw another member post that picture in a different thread, it looks like some early GMT400s got this instead of the big open hole/plastic covers.

 

[618 Syndicate]

Thanks guys. So the trucks don't have these vents in the pillars, just the SUVs?

If so then it seems like the conclusion is that trucks should have the vented door vent covers, and the SUVs should have the blank ones. Looks like I'm good.

Correct. A pillars are behind the windshield, B behind front doors, C behind rear doors, and D is the gate or barn door support.

 

[PlayingWithTBI]

Do you mean like this?

Yepper

 

[Wildblue19]

Would the water drain holes in be bottom of all the doors not vent pressure as well? Assuming the door panels themselves are vented as seen above

 

[PlayingWithTBI]

Would the water drain holes in be bottom of all the doors not vent pressure as well? Assuming the door panels themselves are vented as seen above

Could be but IMO .they alone, would be too small to help relieve the pressure built when closing a door.