Tailgate Vent Delete?
- Thread starter JMT
- Start date
You'll pop the hardtop right off.
I'm pretty sure it doesn't create a vacuum.
I installed the Savvy tailgate cover on a previous Jeep and deleted the vent. With the soft top it only made a slight difference. With a hardtop I'd probably keep a window cracked. Even with the vent my full doors have a noticeable difference between the hard and soft top.
No, no. It stores the pressure inside so that when you open the doors again they blow open with so much force they blow off the hinges.
I used to tape over the inside grille on the tailgate so I could turn the fan up and build up internal with the soft top. It was noticeably quieter that way. But it only took a few times closing the door once the hard top went on to remember to take the tape off for the winter. It was noticeable both in effort and how uncomfortable it made my ears due to the pressure.
Found this info on jeepforum.
“The vents are there for if you have a hardtop and the airbags deploy. They vent the air pressure out of the Jeep, otherwise windows could blow from airbag deployment. On the older years the vents were built into the hardtop on the sides.”
“The vents are there for if you have a hardtop and the airbags deploy. They vent the air pressure out of the Jeep, otherwise windows could blow from airbag deployment. On the older years the vents were built into the hardtop on the sides.”
I'm suspicious of that. A lot of dumb things were said on Jeep Forum.
Clearly, they prevent the creation of a comparative vacuum outside the jeep.
I would like to know why the Jeep engineers always had a vent either in the hardtop or the tailgate.
I do know the doors close different with hardtop vs soft top vs no top.
Mention was also made of the efficiency of the A/C function
Opening and closing the doors with some low threshold of effort makes the most sense to me.
Airbags deploy with explosive force. Cabin pressure likely has little effect on their performance. And who really cares if the windows blow out in an accident bad enough up deploy the airbags.
AC works better in a closed environment. Vents to the outside don't help that.
TJs are a pretty drafty vehicle even under the best of circumstances.
Eardrums blow out way before glass does... The tailgate vent is likely to prevent lawsuits of hearing loss after someone installed a new snug fitting soft top, then get in an accident that deploys bags. Doors are harder to close with a soft top so likely the pressure builds up fast.
Just a theory
If you look at almost any modern production vehicle, they all have vents in the rear. They're usually concealed by the rear bumper fascia on a car or SUV or the bed on a pickup.
I don't think air is incompressible enough to have any impact on the way the doors open and close, but it probably is incomoressible enough that I doubt a vent would play much of a role in releasing the pressure during an airbag deployment.
However, I'd absolutely buy the HVAC thing. No impact on recirc but if you're in one of the modes that brings in air through the cowl, the air inside is gonna have to go somewhere or the fan will end up pressurizing the interior and airflow will suffer dramatically.
I don't think air is incompressible enough to have any impact on the way the doors open and close, but it probably is incomoressible enough that I doubt a vent would play much of a role in releasing the pressure during an airbag deployment.
However, I'd absolutely buy the HVAC thing. No impact on recirc but if you're in one of the modes that brings in air through the cowl, the air inside is gonna have to go somewhere or the fan will end up pressurizing the interior and airflow will suffer dramatically.
okay, experiment time... seal off your vents with cardboard and gorilla tape, close door like normal.... mind blown.
It might only cause 0.05 psi... but thats 0.05 pounds per square inch... but that door actually displaces a lot of square inches. it adds up. It will feel like someone is inside the jeep pushing back. Sure, you can slam the door and overcome the pressure. but its a pretty big difference.
And yes, absolutely yes it has a massive impact on HVAC. you can't blow cold air in, if the hot air doesn't have anywhere to escape. That little fan can't create a much of a high pressure zone.
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