Negative pressure when i turn the air up.

mojave5 said:

So i've been noticing a negative pressure inside the car when i turn on the air, especially turning it up to higher settings. It's noticeable and even makes your ears pop.

Today i had my car on trying to figure it out and when i open the door it makes a pop also like a pressure release.

Anyone have any ideas or do i just take it in?

Click to expand...

Ddays said:

Did you happen to block the rear vents on the tailgate with a tramp stamp or something?

Click to expand...

Jackal01 said:

What model car is it?

Click to expand...

Ddays said:

Did you happen to block the rear vents on the tailgate with a tramp stamp or something?

Click to expand...

cozdude said:

This^^ if those vents are blocked then the pressure will not release. Also if those vents on the inside of the tailgate are blocked then that will cause the same thing to happen

Click to expand...

GraniteCrystal said:

Drill a hole in it?

Click to expand...

mojave5 said:

Could drill a hole, but i live in the Northwest where it rains 9 months out of the year.

Click to expand...

mojave5 said:

Could drill a hole, but i live in the Northwest where it rains 9 months out of the year.

Click to expand...

GraniteCrystal said:

Drill a hole in it?

Click to expand...

Stotch said:

Maybe opening a drain plug in the cargo area would help?

Click to expand...

GraniteCrystal said:

You only need a really small one to equalize the pressure. I doubt any rain would get in whatsoever. I understand the hesitation to drill though.

Click to expand...

mojave5 said:

Yeah I'm going to try opening a drain plug first to seem if that solves it. If not then maybe drilling some new holes:yawn37:

Click to expand...

christov11 said:

what about drilling a smaller hole facing up.....

sortof like...

direction of hole / -------- |(plate)------------- jeeep facing ->

see what I mean?

I would want to try and get some paint in there to avoid rust but im sure you can get an angle going for the hole given the plate being thick enough.

plus ide rather have the chance of rust in that plate than in the body.

Click to expand...

notnalc68 said:

Is that what you meant?

View attachment 221635

Click to expand...

christov11 said:

what about drilling a smaller hole facing up.....

sortof like...

direction of hole / -------- |(plate)------------- jeeep facing ->

see what I mean?

I would want to try and get some paint in there to avoid rust but im sure you can get an angle going for the hole given the plate being thick enough.

plus ide rather have the chance of rust in that plate than in the body.

Click to expand...

Ddays said:

LOL - Nice when its an easy fix, 'aint it? There are a lot of those tramp stamps out there with vents in them if you don't want to drill

Click to expand...

mojave5 said:

2014 JK Rubi

Click to expand...

Stotch said:

Sweet ride, those 37s?

Click to expand...