Cabin Pressure Relief Vents

[Davidloveshishemi]

I just ordered new vents. I have never taken the rear seats out. Is that a complicated process or is it simple? i would appreciate it if someone could walk me through it real quick.

Thank You!

 

[caulk04]

I see you're in Tennessee, likely no rust on your seat bolts. They go through the cab floor and are exposed below.

Just a few bolts, simple enough. https://www.ramforum.com/threads/qu...ding-back-seat-mod.121085/page-2#post-1769526

Make sure those new vents fit tight to the cab, use a paint stir stick or such between the cab and vent clips if needed to pull them tight.

 

[GTyankee]

good video on cab vents

2009-2018 RAM Cab vents replacement - Easy Install process - part 68323649AB

I had a small leak on my 2017 RAM Sport quad cab that was accumulating in the storage bin under the driver's side rear seat. I narrowed it down to a few pos...

www.youtube.com

 

[mrack]

Easy peasy, especially on a quad cab. 4 bolts and lift up, one more bolt for the middle seatbelt and you can pull it out of the truck. 1/2” impact will make it much faster breaking the bolts lose

 

[Dave Haddon]

So you are replacing the vents why?..I blocked mine off totally with 2nd Skin Mega Zorb & mass load vinyl coupled with sound deadener on 5/8 plywood with 1/2 foam backed vinyl as a back seat wall for my dog area..works great no leaks no dust no noise!

 

[GTyankee]

But when one or both cab vents seal around the edges start allowing water in, you have two choices move the rear seat out of the way, then do the same with the insulation.
At that point, you can take water & run it between the bed & the rear of the cab, find out where the water intrusion is.
Then you can replace the vent(s) or at least take a Paint Stick & wedge the stick between the cab & the top of the vent Tabs, that pulls the top of the vent tight against sheet metal




Not much thought was put into placement of the RF Hub, that is exposed to water that enters through the cab vent

 

[04fxdwgi]

I believe the primary purpose of those vents is for pressure relief when closing doors (have seen windows blow out of pressurized truck cabs when door(s) was/were closed hard) and when the ventilation (AC or heat) takes in outside air, cab needs excess air to be relieved.

But, hey, that's just me

 

[Cmz2800]

I just ordered new vents. I have never taken the rear seats out. Is that a complicated process or is it simple? i would appreciate it if someone could walk me through it real quick.

Thank You!

I did it last week. It’s a total of like 8-10 screws. Not difficult at all. For ME it was getting the new filter into the hole that was a real pain. I also put sealant around the filter to make sure I don’t have any leaking for the next 15 yrs

 

[Davidloveshishemi]

I did it last week. It’s a total of like 8-10 screws. Not difficult at all. For ME it was getting the new filter into the hole that was a real pain. I also put sealant around the filter to make sure I don’t have any leaking for the next 15 yrs

Do you have the bench seat in the back? And I was thinking sealant around the inside of the vents to keep it from happening again. How did you remove the piece that covers the vents? Looks like there are some plastic grommets holding it on. Did they come off easy? Should I get a few replacements in case?

Thank you for your help!

 

[Dave Haddon]

Great idea on paint stick...I always have a small 1/2 window down in the front in case of a key thing..just a long time habit so no worries about pressure window blowout..good point however....also the silicone around the edges of the new vents..another thought on the RF hub is my sound deadener MLV and or the Mega Zorb while you have the back rest off...added water repellant/protection.

 

[Cmz2800]

Do you have the bench seat in the back? And I was thinking sealant around the inside of the vents to keep it from happening again. How did you remove the piece that covers the vents? Looks like there are some plastic grommets holding it on. Did they come off easy? Should I get a few replacements in case?

Thank you for your help!

I have double seats. The driver side is a single seat whereas the other is a double seat. They both go up tho. And the vents are held in by clips. You have to push them up with your finger. They clip right off.

 

[Fishhaggis]

I just replaced mine a couple of weeks ago. No more water getting in. I followed YouTube videos and removed the back seats. Tying a string to the new vents really helped seat them in and also made sure I didn’t lose them when I popped them through the openings. Fairly easy job if you are able to get the seat bolts out, as they are torqued right in there and some bolts are hard to reach. The new replacement vents were a lot different from the original ones, as the new ones look like they should handle the job better.

 

[1 MEAN66]

Pressure release ANYTIME. They make a/c and Heating work " much more better". How to test! put a straw in your mouth and blow. then put your finger over the end. Without the vents air can not flow thru! In fact, when I was at dealers working that is how we looked for interior leaks. Tape up the vents (sealing them), turn the blower motor on high, Get out, and close the doors. Start spraying a soap & water mixture on the outside and look for bubbles. Pressure escaping (bubbles) is where water can get in!

 

[rpr]

I’m getting a lot of water in the storage compartment under the driver side rear seat and I’m thinking it’s likely from the pressure vent since the 3rd brake light and gasket were previously replaced.

Where are you guys getting these new pressure vents. Dealer or aftermarket?

 

[Dusty]

I believe the primary purpose of those vents is for pressure relief when closing doors (have seen windows blow out of pressurized truck cabs when door(s) was/were closed hard) and when the ventilation (AC or heat) takes in outside air, cab needs excess air to be relieved.

But, hey, that's just me

The other reason is to prevent moisture build-up in the cab and interior side of body panels to prevent odor and premature rusting.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33-gallon fuel tank, 18” wheels. Build Date: 3 June 2018. Now at 105545 miles.

 

[G Allen]

So you are replacing the vents why?..I blocked mine off totally with 2nd Skin Mega Zorb & mass load vinyl coupled with sound deadener on 5/8 plywood with 1/2 foam backed vinyl as a back seat wall for my dog area..works great no leaks no dust no noise!

I've read about rear window blowing out when multiple doors close at the same time.
Just sayin'

 

[G Allen]

Where are you guys getting these new pressure vents. Dealer or aftermarket?

Mopar Dot Com is where I got mine.

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www.mopar.com

 

[Jas34]

I’m getting a lot of water in the storage compartment under the driver side rear seat and I’m thinking it’s likely from the pressure vent since the 3rd brake light and gasket were previously replaced.

Where are you guys getting these new pressure vents. Dealer or aftermarket?

This thread may help:

Updated cabin vent (exhauster)

It's been mentioned in a previous thread, but thought I'd put up a couple of pics of the newest version of the cabin vents behind the rear seat that tend to leak and leave water in the floor of the under seat storage. First pic is the outside. The new one has a rigid plastic flange outside of...

www.ramforum.com

Also, you may want to take a look at the drains in your sliding window track. They should drain outside. If plugged they will back up inside and into the storage trays under the seat.

Another trick for anyone chasing these leaks. If you have your back seat out, tape the vents over from the inside with masking tape so they don't vent. Close up the truck with the blower on high (and not on recirc). Soap up the outside with soapy water where you want to check for leaks. It will blow bubbles where any are. This way, you can verify if the 3rd brake light is leaking. You'll likely see some bubbles around the sliding window. That's not an issue unless the track drains are plugged. This might work also without taping off the vents depending on how much pressure they allow the blower to build up inside.

 

[rpr]

Thanks for the info guys.

 

[Davidloveshishemi]

Mopar Dot Com is where I got mine.

Genuine Mopar® Parts | Official Mopar® Site

Welcome to the official store of genuine Mopar parts and accessories. With Mopar, you'll get the right part for your Chrysler, Dodge, Jeep, Ram or FIAT vehicle. Shop for a Pacifica Hybrid Battery Charger or Charging station and other Mopar parts.

www.mopar.com

Parts.allmoparparts.com