Cabin pressure
#1
Cabin pressure
I know there have been countless threads through the years about how hard it is to close the doors after installing new weatherstripping, but I don't think the weatherstripping is my issue at all. I have adjusted my windows properly so that they're not pushing hard against the weatherstripping, but if both windows are all the way up I have to slam the doors. If I crack the window, the doors shut like a brand new car. Even with the driver window all the way up, it still shuts just fine if the passenger window is cracked, and vice versa.
So this leads me to believe it's a pressure issue inside the car. Where is the vent supposed to be, or is there one at all? And I'm sure I'm wrong, but I swear I read something years ago saying the rear hatch is supposed to raise slightly when the doors are opened, and then snug back down when they are closed. Maybe I'm getting that confused with another kind of car, I'm not sure. It just seems like there's nowhere for the air to escape.
So this leads me to believe it's a pressure issue inside the car. Where is the vent supposed to be, or is there one at all? And I'm sure I'm wrong, but I swear I read something years ago saying the rear hatch is supposed to raise slightly when the doors are opened, and then snug back down when they are closed. Maybe I'm getting that confused with another kind of car, I'm not sure. It just seems like there's nowhere for the air to escape.
#4
Re: Cabin pressure
Just realized I asked this question 12 years ago. Not much has changed. Lol
https://www.thirdgen.org/forums/body...-pressure.html
https://www.thirdgen.org/forums/body...-pressure.html
#6
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Car: 1969 Z/28, 1983 Z/28
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Re: Cabin pressure
Yes, there are two vents in the door striker area. This size and style have been used since the Camaro was born. I would suppose they are designed to be big enough for normal ventilation but shutting a door might be over powering them. It seems I can remember the hatch on mine would jump up a little if it wasn't latched when the door was shut.
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Tom 400 CFI (07-11-2024)
#7
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Re: Cabin pressure
Aren;t the vents those little vents inside the door jambs below (?? Or was it above???)...The strikers?
try pop the hatch and close the doors with the hatch open
try pop the hatch and close the doors with the hatch open
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#8
Re: Cabin pressure
I may pull one of those vents and just see what's on the backside. Seems like those vents would be on the wrong side of the weatherstripping though to relieve any pressure from closing the doors.
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1989karr (07-11-2024)
#10
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Car: 1969 Z/28, 1983 Z/28
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Re: Cabin pressure
You're absolutely right! But, I remember seeing a ventilation diagram and IIRC, those vents were actually the outlet end of the system. If that's the case, however, I don't know why there are rubber flaps acting as check valves to keep air from going in that direction...
I'll try to find that diagram.
I'll try to find that diagram.
Last edited by 69-er; 07-11-2024 at 06:17 PM.
#11
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Car: 1969 Z/28, 1983 Z/28
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Re: Cabin pressure
I can't find it but I remember the flow starting inside the cabin, through the trunk and then out the vents. See what happens you remove one of the vents and then shut a door. With no check valve, air might flow easier.
#12
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Car: 1969 Z/28, 1983 Z/28
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Re: Cabin pressure
I just don't understand the purpose of the check valves. If air is supposed to flow in that direction, especially when shutting the doors, they would impede flow.
Maybe I saw that diagram in my body service manual...
Maybe I saw that diagram in my body service manual...
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Re: Cabin pressure
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