Why are there vents behind the spare tire?

[OrangecrushBronco]

All vehicles have them, they just hide them from normal view. Sedan's have them from the cabin into the trunk area, always in the rear of the cabin wall. You force air from the HVAC into the cabin at the front of the cabin, it has to go somewhere. Also, temp changes, ever wonder how your windows don't blow out on a hot summer day? Or, how you can open/close your door?

Lol. Cars aren't air tight.

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[OrangecrushBronco]

Any body explain to me the why there are vents behind the spare tire. Thanks

Rodent door. Lol

 

[toymaster]

Lol. Cars aren't air tight.

You are right! They have vents built into the cabin, what this entire thread is about.

 

[OrangecrushBronco]

Ventless cars still aren't air tight. Windows, doors ect. are not air tight.

 

[JHenley01]

They are supposed to be for cabin pressure relief but they don't do a great job in my opinion. On my 2 door it takes significantly more force to close the doors when the windows are up. I can open the tailgate and they are almost effortless to close. Seems to be a common thing.

 

[redone17]

I was sort of wondering if those accessories (compressor mounts, M2M safe, etc) that are using that hump in the tailgate plus adding a table are blocking said airflow…

 

[BroncRocks]

They are supposed to be for cabin pressure relief but they don't do a great job in my opinion. On my 2 door it takes significantly more force to close the doors when the windows are up. I can open the tailgate and they are almost effortless to close. Seems to be a common thing.

Anyone find a “fix” for this?

thanks

if they are there for pressure relief, why don’t they work as they should? I drove several on test drives and there was still pressure buildup. Always felt like I needed to pop my ears. One caused a headache.

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