User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-30-2022, 01:11 PM #1
Something_Awesome's Avatar
Something_Awesome Something_Awesome is offline
Member
 
Join Date: Dec 2021
Location: Los Angeles, CA
Posts: 170
Something_Awesome will become famous soon enough
Something_Awesome Something_Awesome is offline
Member
Something_Awesome's Avatar
 
Join Date: Dec 2021
Location: Los Angeles, CA
Posts: 170
Something_Awesome will become famous soon enough
PSA for anyone that drives with their rear window down

For those of you that do not know, when you have your rear trunk window down a tornado effect occurs that sucks air in to your cabin from the rear. This is also the case even if you roll down your front windows in conjunction with the rear trunk window.

This phenomenon is actually very easy to prove. Drive over a small puddle and sprinkles of water will get sucked in to the cabin from the rear. However, it never occurred to me that this creates a carbon monoxide hazard (thanks to AutomotivePress for pointing this out). I have a child car seat in the back for a 1.5 year old. Luckily, I have only rolled the rear window down with him in the vehicle twice, and for short drives. I also have the TRD Exhaust which would reduce how much carbon monoxide gets sucked in since it has a side outlet. But still, the reduction is likely not enough of an amount that would make me comfortable. And for what it's worth, I think you'd really need a lot of exposure in this manner to lose any brain cells. Could be wrong though.

I love this feature, and is one reason out of many that I did not want a 6th gen. But I'd not roll down the rear window anymore if there is someone in the back seat while driving. The front passengers should be fine though. On a hot day, I'd rather roll down the front windows and the rear trunk window. Having that rear window down automatically makes it feel like 10 degrees cooler. It's incredible.
Something_Awesome is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 01:42 PM #2
tokyo rebuilt's Avatar
tokyo rebuilt tokyo rebuilt is offline
Junior Member
 
Join Date: Feb 2016
Location: las vegas, nv
Posts: 22
tokyo rebuilt is on a distinguished road
tokyo rebuilt tokyo rebuilt is offline
Junior Member
tokyo rebuilt's Avatar
 
Join Date: Feb 2016
Location: las vegas, nv
Posts: 22
tokyo rebuilt is on a distinguished road
Seems a little tin-foil hat to me honestly. Plus you live in L.A; I highly doubt driving with the back window down is posing any more of a risk than you walking down the street or at an outdoor mall.
__________________
‘17 Tacoma TRD Off-Road
‘22 4Runner ORP
tokyo rebuilt is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 02:07 PM #3
USStrongman
Guest
 
Posts: n/a
USStrongman
Guest
 
Posts: n/a
There are way too many factors to say that this is a potential health hazard. Is your fan circulating? Is it blowing only? Are other windows open? If so, which ones? What speed or speeds are we talking about?

Yes, there is a vortices that occurs behind all vehicles as the air tries to repurpose itself into a non moving entity. There is usually a vacuum effect that occurs that can pull air into the rear window when down, by itself usually. However, only a very tiny portion of the air that is being vorticed and with that, a tiny portion of the CO2 being emitted into the atmosphere is included in that.
  Reply With QuoteReply With Quote
Old 06-30-2022, 02:07 PM #4
2021nightshade4x4 2021nightshade4x4 is offline
Senior Member
 
Join Date: Apr 2021
Posts: 1,283
2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice
2021nightshade4x4 2021nightshade4x4 is offline
Senior Member
 
Join Date: Apr 2021
Posts: 1,283
2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice
Now a real problem is my old Dodge that had an exhaust leak and no “recirculation” setting on the HVAC.

I kept wondering why I always got a headache less than 10 minutes from starting to drive that car. It wasn’t strong enough to smell, but I don’t know how many brain cells I lost before I put two and two together.


Sent from my iPhone using Tapatalk
2021nightshade4x4 is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 02:17 PM #5
DallasTRDPro's Avatar
DallasTRDPro DallasTRDPro is offline
Member
 
Join Date: Apr 2018
Posts: 727
DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light
DallasTRDPro DallasTRDPro is offline
Member
DallasTRDPro's Avatar
 
Join Date: Apr 2018
Posts: 727
DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light DallasTRDPro is a glorious beacon of light
I'm more worried about the soot on my headliner.
__________________
2022 4 Runner SR5 Premium--For Sale:ConsoleVault safe, HikeIt throttle controller
DallasTRDPro is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 02:27 PM #6
BlackWorksInc's Avatar
BlackWorksInc BlackWorksInc is offline
Elite Member
 
Join Date: Feb 2011
Location: Bend, OR
Posts: 9,906
BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold
BlackWorksInc BlackWorksInc is offline
Elite Member
BlackWorksInc's Avatar
 
Join Date: Feb 2011
Location: Bend, OR
Posts: 9,906
BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold BlackWorksInc is a splendid one to behold
■Caution while driving
Keep the back door and back window closed while driving. If the back door
or the back window is left open, the back door may hit nearby objects while
driving or luggage may be unexpectedly thrown out, causing an accident.
In addition, exhaust gases may enter the vehicle, causing death or a serious health hazard. Make sure to close the back door and back window
before driving.


Has been at the end of the power rear window instructions in the owner's manual for at least 3 generations IIRC (it's there for 4th & 5th gens for sure, haven't bothered to check a 3rd gen, but have no doubt it's there given exactly what the OP describes has been a thing since old 70's & 80's station wagons).

Mainly the biggest issue is more just CO poisoning since you wouldn't notice it and would assume that with all the windows open it should provide plenty of airflow. Though it takes a relatively small amount of CO to start affecting people; so it's something to keep in mind and be aware of.
BlackWorksInc is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 02:38 PM #7
Whippersnapper02's Avatar
Whippersnapper02 Whippersnapper02 is offline
Senior Member
 
Join Date: Jan 2013
Location: OC, Derpifornia
Age: 39
Posts: 1,243
Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of
Whippersnapper02 Whippersnapper02 is offline
Senior Member
Whippersnapper02's Avatar
 
Join Date: Jan 2013
Location: OC, Derpifornia
Age: 39
Posts: 1,243
Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of Whippersnapper02 has much to be proud of
I usually have it down when I drive too. It's another reason why I want the TRD exhaust because it moves the outlet to the side.
__________________
2019 Runner TRD Offroad Premium w/KDSS
Whippersnapper02 is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 03:13 PM #8
spartacus's Avatar
spartacus spartacus is offline
Senior Member
 
Join Date: Mar 2010
Location: denver
Posts: 3,010
spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of
spartacus spartacus is offline
Senior Member
spartacus's Avatar
 
Join Date: Mar 2010
Location: denver
Posts: 3,010
spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of spartacus has much to be proud of
I've driven with all windows down and the sun roof open and seems to be fine on back country roads. There seems to be plenty of air flow to dissipate the exhaust.
spartacus is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 03:33 PM #9
5thToy 5thToy is offline
Member
 
Join Date: Apr 2019
Location: Northern Nevada
Posts: 524
5thToy is just really nice 5thToy is just really nice 5thToy is just really nice 5thToy is just really nice
5thToy 5thToy is offline
Member
 
Join Date: Apr 2019
Location: Northern Nevada
Posts: 524
5thToy is just really nice 5thToy is just really nice 5thToy is just really nice 5thToy is just really nice
Quote:
Originally Posted by DallasTRDPro View Post
I'm more worried about the soot on my headliner.
This, and it isn't news that air gets sucked in with the back window down.

Opening the sunroof helps with airflow in conjunction with the other windows.
5thToy is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 03:36 PM #10
rageandlove's Avatar
rageandlove rageandlove is offline
Member
 
Join Date: Nov 2017
Posts: 736
rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all
rageandlove rageandlove is offline
Member
rageandlove's Avatar
 
Join Date: Nov 2017
Posts: 736
rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all rageandlove is a name known to all
Put on a TRD Pro exhaust which sends it out to the side. Or get a muffler shop to cut and weld a 90 degree pipe on and do the same thing as the Pro exhaust for less.
rageandlove is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 03:48 PM #11
emmantik emmantik is offline
Member
 
Join Date: Jan 2012
Location: Vancouver BC, Canada
Posts: 587
emmantik is just really nice emmantik is just really nice emmantik is just really nice emmantik is just really nice
emmantik emmantik is offline
Member
 
Join Date: Jan 2012
Location: Vancouver BC, Canada
Posts: 587
emmantik is just really nice emmantik is just really nice emmantik is just really nice emmantik is just really nice
Quote:
Originally Posted by DallasTRDPro View Post
I'm more worried about the soot on my headliner.
I agree! Driving with the rear window down eventually leaves a dark film on your headliner. Though I recently swapped to a TRD side exit exhaust. The sulfur smell is not as noticeable as with a straight back exit - though it is still there.
__________________
2015 Magnetic Gray SR5P
emmantik is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 04:42 PM #12
Brandonium's Avatar
Brandonium Brandonium is offline
Member
 
Join Date: Jul 2016
Location: Alabama
Age: 46
Posts: 985
Real Name: Brandon
Brandonium will become famous soon enough
Brandonium Brandonium is offline
Member
Brandonium's Avatar
 
Join Date: Jul 2016
Location: Alabama
Age: 46
Posts: 985
Real Name: Brandon
Brandonium will become famous soon enough
Hell yeah. I still drive with it down all spring, fall and some of winter. I just had to make a habit of hitting the headliner with a shop vac and brush attachment every weekend to mitigate that. First year of driving I did not do this and it was disgusting.

As to the CO hazard, I have known this for some time but it has never been an issue. I still count using my fingers however so maybe I would never know!

Quote:
Originally Posted by DallasTRDPro View Post
I'm more worried about the soot on my headliner.
__________________
2016 Toyota 4Runner TEP + KDSS + RC
1971 Volvo 142e (Lovely brick with a tractor engine)
1977 International Scout II (Another brick tractor)
Brandonium is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 04:44 PM #13
2021nightshade4x4 2021nightshade4x4 is offline
Senior Member
 
Join Date: Apr 2021
Posts: 1,283
2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice
2021nightshade4x4 2021nightshade4x4 is offline
Senior Member
 
Join Date: Apr 2021
Posts: 1,283
2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice 2021nightshade4x4 is just really nice
Quote:
Originally Posted by emmantik View Post
I agree! Driving with the rear window down eventually leaves a dark film on your headliner. Though I recently swapped to a TRD side exit exhaust. The sulfur smell is not as noticeable as with a straight back exit - though it is still there.

Doesn’t the sulfur smell mean your cat is failing or has gas in it?


Sent from my iPhone using Tapatalk
2021nightshade4x4 is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 05:31 PM #14
Something_Awesome's Avatar
Something_Awesome Something_Awesome is offline
Member
 
Join Date: Dec 2021
Location: Los Angeles, CA
Posts: 170
Something_Awesome will become famous soon enough
Something_Awesome Something_Awesome is offline
Member
Something_Awesome's Avatar
 
Join Date: Dec 2021
Location: Los Angeles, CA
Posts: 170
Something_Awesome will become famous soon enough
Quote:
Originally Posted by tokyo rebuilt View Post
Seems a little tin-foil hat to me honestly. Plus you live in L.A; I highly doubt driving with the back window down is posing any more of a risk than you walking down the street or at an outdoor mall.
It Sucks the carbon monoxide to the back half of the vehicle. Like I said, you can test this for yourself. You can drive your vehicle and observe it with water.
Something_Awesome is offline   Reply With QuoteReply With Quote
Old 06-30-2022, 05:36 PM #15
Gamma Ray Gamma Ray is offline
Banned
 
Join Date: Mar 2020
Location: New Jersey, USA
Posts: 721
Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice
Gamma Ray Gamma Ray is offline
Banned
 
Join Date: Mar 2020
Location: New Jersey, USA
Posts: 721
Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice Gamma Ray is just really nice
Someone should get a carbon monoxide detector and measure carbon monoxide levels in these conditions.

And regarding the manual part about the back window being down, I have all of my stuff secured. If I have something that's not secured, then my windows stay up. I even have one of those Rago toilet paper holders, and I have a rubber band around the roll all the time for this reason.
Gamma Ray is offline   Reply With QuoteReply With Quote
Reply

Tags
front , rear , roll , trunk , window

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
rear window wont operate, no wiper or defrost (NOT WINDOW LOCK) the great him 3rd gen T4Rs 19 11-09-2021 01:08 PM
Rear window Molle. Which brand tightest fit to window? JSS16 5th gen T4Rs 35 04-25-2020 11:09 AM
Squeak in rear wheel area. Drives me crazy btruong25 4th Gen T4Rs 11 03-15-2015 11:12 PM
Rear window problem - 1990 4Runner - motor works but window wont move mike_hill2107 Classic T4Rs 3 12-12-2011 08:13 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:37 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020