Tailgate Vent Delete?

[jjvw]

can you blow out eardrums? IDK how much additional pressure is added to the cabin when the airbag

....

Can you imagine all the people Jeep needed to crash in test hardtop Wranglers with and without cabin vents to find out?

 

[someguysjeep]

Is it not 90 degrees in cincy? It is here...HOT!!!

cleveland............ya hot today.......trucks readin 92. just seems like winters delayed a month and so is spring/summer for the last several yrs.

 

[mrblaine]

All I can find on the vent issues is:

1) all modern cars have them (older cars don't)
2) some claim it will make the doors harder to close, but hardly anyone can really tell
3) may increase strain on the HVAC system when it is in any mode except re-circulation because the air brought in has to have somewhere to go, but all cars have air leaks. Just drive your car into a pond and see how much water comes in. Air can come in those same spaces.
4) you'll blow your eardrums out of the airbag inflates, but never heard of this happening to anyone. More commonly the 160+dB noise damages people's eardrums, but it is still better to have an airbag than not.
5) they probably don't really matter but have been built into the engineering of modern cars

I think my logic on the eardrums is flawed given that I overlooked the cab vents that I'm guessing my truck had. I'd not like to test that theory to find out if I was wrong.

 

[mrblaine]

Can you imagine all the people Jeep needed to crash in test hardtop Wranglers with and without cabin vents to find out?

Pretty sure that you can use the blast pressure test diaphragms like Myth Busters used in the right rating. I'll even bet that the calculations the engineers did on the increase in cabin pressure was pretty darn close. Some of them fuckers are actually pretty good at stuff like that.

 

[JMT]

I think my logic on the eardrums is flawed given that I overlooked the cab vents that I'm guessing my truck had. I'd not like to test that theory to find out if I was wrong.

Since these vents are apparently on all modern vehicles, I suspect we'd have to go pretty far back in history to find out if there were any legal cases that involved airbags causing eardrum damage. Still seems more likely to me that the dB would cause more damage than air movement, particularly when there are always air escapes in a vehicle.

p.s. I'm not willing to test it either, but this is the loudest most silent forum I've ever been on. LOL

 

[JMT]

Oh, forgot this one.

6) to allow Carbon Monoxide to escape if there's an exhaust leak. Even with the blower off you will notice there is airflow into the cab (and through the vent out the cab). If this is the case it would be a different type of safety feature.

Moral of this story: tape up your vent before trying to kill yourself by carbon monoxide poisoning in your Jeep.

 

[psrivats]

All I can find on the vent issues is:

1) all modern cars have them (older cars don't)
2) some claim it will make the doors harder to close, but hardly anyone can really tell
3) may increase strain on the HVAC system when it is in any mode except re-circulation because the air brought in has to have somewhere to go, but all cars have air leaks. Just drive your car into a pond and see how much water comes in. Air can come in those same spaces.
4) you'll blow your eardrums out of the airbag inflates, but never heard of this happening to anyone. More commonly the 160+dB noise damages people's eardrums, but it is still better to have an airbag than not.
5) they probably don't really matter but have been built into the engineering of modern cars

EDIT: I forgot to add this one I found

6) to allow Carbon Monoxide to escape if there's an exhaust leak. Even with the blower off you will notice there is airflow into the cab (and through the vent out the cab). If this is the case it would be a different type of safety feature.

FWIW, I have the bedrug. There is a rug panel that covers the rear tailgate. After I installed it, the hard doors with hardtop definitely felt harder to shut. I don't have any problems with the soft top. It was a distinct difference. I removed the tailgate rug panel actually.

 

[psrivats]

p.s. I'm not willing to test it either, but this is the loudest most silent forum I've ever been on. LOL

Loud for all the silly things and mostly silent on the good technical stuff. LOL indeed.

 

[jjvw]

Pretty sure that you can use the blast pressure test diaphragms like Myth Busters used in the right rating. I'll even bet that the calculations the engineers did on the increase in cabin pressure was pretty darn close. Some of them fuckers are actually pretty good at stuff like that.

We could also use pigs and yell at them afterwards.

 

[Gollywomper]

I know the tailgate vent is functional to relieve the vacuum created when shutting the doors. How cumbersome is shutting the doors if you delete the vent?

I have an older style TJ without the tailgate vent but a new top with out the built in vent. It’s not the ends of the world but the doors don’t close as well.

 

[JMT]

FWIW, I have the bedrug. There is a rug panel that covers the rear tailgate. After I installed it, the hard doors with hardtop definitely felt harder to shut. I don't have any problems with the soft top. It was a distinct difference. I removed the tailgate rug panel actually.

When we slammed the door with the vent covered we did notice the hardtop rear glass try to open. We slammed it several times and watched. We couldn't get it to open, but I can see the possibility in a really airtight Jeep of it opening if the seal on the lower glass was not positioned correctly to be held in by the tailgate. The rear glass does have some adjustability to it, so if someone has this problem they might try loosening the two screws and seeing if they can adjust it a bit lower.

 

[Gollywomper]

When we slammed the door with the vent covered we did notice the hardtop rear glass try to open. We slammed it several times and watched. We couldn't get it to open, but I can see the possibility in a really airtight Jeep of it opening if the seal on the lower glass was not positioned correctly to be held in by the tailgate. The rear glass does have some adjustability to it, so if someone has this problem they might try loosening the two screws and seeing if they can adjust it a bit lower.

I have tried. Glass is adjusted down all the way. I did read about some molding for the tailgate to help with this. But I’m not overly concerned with the issue.

 

[someguysjeep]

close the door slow with 1 finger and there is no effect.
the pressure against the door cannot fit inside... it has to escape as the action occurs. if the action is to fast it creates a cushion or dam, if there is enough to force the closure the trapped extra has to find a way out or you have created a pressure increase.
it's all about the quality of the seal of the tub and top.