Safe to drive around with rear window out? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-26-2012, 08:52 PM   #1
Jeeper
 
slyr114's Avatar
 
Join Date: Jun 2011
Location: Mayfield Heights Ohio
Posts: 180
Question Safe to drive around with rear window out?

I have been driving without my rear window for a while now, since it has gotten cold really. I like to leave it out because it feels very nice, not too cold and not too hot etc. Now my grandpa says I should put the window in because he says the exhaust fumes get sucked in while driving. I do not believe this but I figured I may as well ask here just so I can make sure.

slyr114 is offline   Quote Quick Reply
Old 09-26-2012, 08:55 PM   #2
Jeeper
 
Join Date: Jan 2012
Posts: 39
ive heard the same thing but believed it when my friend has his rear window down in his bronco and you could clearly smell exhaust coming through the cab. he had his front windows down too though

zachc113 is offline   Quote Quick Reply
Old 09-26-2012, 09:02 PM   #3
Jeeper
 
slyr114's Avatar
 
Join Date: Jun 2011
Location: Mayfield Heights Ohio
Posts: 180
I have never smelled it less I have everything off/down but I figure that would happen no matter what window I have down either the front or the back idk.
slyr114 is offline   Quote Quick Reply
Old 09-26-2012, 09:06 PM   #4
Jeeper
 
Join Date: Mar 2012
Location: Dixie
Posts: 34
I've also heard this, in fact I believe they even mention it in the manual, but I do it anyway during the summer when thunderstorms tend to pop up without warning and I don't want to get caught completely topless. I've never smelled fumes or developed headaches or anything. Maybe I have an unusual tolerance for carbon monoxide.
Daddy_O is offline   Quote Quick Reply
Old 09-26-2012, 09:23 PM   #5
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 5,095
Images: 11
They used to be really hot on the topic of not leaving the rear window down in the old station wagons and early SUV's because of carbon monoxide poisoning. I leave my rear window rolled up on my soft top alot, but then I have half doors and no uppers when I'm doing it. I wouldn't think it would be a problem as long as your side door windows were down providing air flow, but I don't think I would if the rest of the Jeep was closed.
Water Dog is offline   Quote Quick Reply
Old 09-26-2012, 09:25 PM   #6
Jeeper
 
slyr114's Avatar
 
Join Date: Jun 2011
Location: Mayfield Heights Ohio
Posts: 180
Thanks for the insight, maybe ill leave one of the side door windows down as well.
slyr114 is offline   Quote Quick Reply
Old 09-26-2012, 09:26 PM   #7
Jeeper
 
Join Date: Oct 2011
Posts: 1,526
Quote:
Originally Posted by slyr114 View Post
I do not believe this...
Believe it.
tangofox007 is online now   Quote Quick Reply
Old 09-26-2012, 09:47 PM   #8
Jeeper
 
slyr114's Avatar
 
Join Date: Jun 2011
Location: Mayfield Heights Ohio
Posts: 180
no, not today i did not, it was raining. however ill be sure next time to either have front and rear open or just the front.
slyr114 is offline   Quote Quick Reply
Old 09-26-2012, 09:50 PM   #9
Jeeper
 
Blind Dog's Avatar
 
Join Date: Jul 2012
Location: Des Moines, Iowa
Posts: 591
It states in the manual to not have the back window open without the back sides, and maybe the windows, too, (that I don't remember) open because of CO poisoning. So now you know. Whatever happens next is to be expected. Good luck.
__________________
In God we trust.
All others bring data.

----------------------
'02 Sport, soft top, 6 cylinder
5 speed manual, 4" lift, 33.5" tires
~144K miles
Blind Dog is offline   Quote Quick Reply
Old 09-26-2012, 11:40 PM   #10
Jeeper
 
Join Date: Nov 2011
Location: Calgary, Alberta
Posts: 204
I drove for about 2 months earlier this year with just side windows. Full doors and front windows rolled up lots of times and never once smelled the exhaust or had any signs of CO poisoning.

Now I now another fella that removed the converter and his was a whole different ball game, the exhaust fumes were brutal and VERY obvious.

I say as long as the exhaust is in good working condition, go for it.

Vince
Vinman is offline   Quote Quick Reply
Old 09-27-2012, 12:28 AM   #11
Jeeper
 
bdickmeyer's Avatar
 
Join Date: Aug 2011
Location: Carmel, IN
Posts: 24
I had mine up this week and definitely had fumes in the cab. The problem is the vehicle creates an eddy effect much like a large rock in a river, where the water flows upstream behind it. The fumes have no where to exit the vehicle
bdickmeyer is offline   Quote Quick Reply
Old 09-27-2012, 03:07 AM   #12
Jeeper
 
TJspeed's Avatar
 
Join Date: Feb 2011
Location: New Mexico
Posts: 3,432
Your fine. I drive with mine rolled up all the time. Don't worry about it. Just enjoy your Jeep.
__________________
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.

TJspeed is offline   Quote Quick Reply
Old 09-27-2012, 04:59 AM   #13
Jeeper
 
Neil F.'s Avatar
 
Join Date: Nov 2007
Location: Marlton, NJ
Posts: 5,261
Images: 1
Quote:
Originally Posted by slyr114 View Post
I have never smelled it less I have everything off/down but I figure that would happen no matter what window I have down either the front or the back idk.
You are not going to smell poisonous carbon monoxide.
__________________
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.
Neil F. is offline   Quote Quick Reply
Old 09-27-2012, 06:46 AM   #14
Jeeper
 
chilly's Avatar
 
Join Date: Jun 2012
Location: Wilmington nc
Posts: 248
I ride with the top up but back window rolled up all the time, both with and without the back windows in (oddly enough my Jeep didn't come with an owners manual so I never read about the CO risk until now).

I even rode from NC to PA, then home again, in this configuration, about 13 hours each way, and didn't seen to suffer any CO poisoning ill effects at the conclusion of the trip; in fact, I felt far better after completing the trip in the Jeep than I ever did with my previous truck (a Mazda B3000].

Not dismissing the potential risk, but just sharing my personal experience.
chilly is offline   Quote Quick Reply
Old 09-27-2012, 08:11 AM   #15
Jeeper
 
SouthTJ's Avatar
 
Join Date: Jan 2006
Location: Memphis
Posts: 688
That's why they used to put the little spoiler on the back of the old station wagons.


That was supposed to direct the fumes away from the open window. Whether it worked or not I have no idea. I had an 81 Bronco and I always rolled the back window down but I usually had the front windows open as well. When i didn't I could smell the exhaust.
I've never done it on the jeep. If the rear window is open the side windows are off also.
__________________
13 JK Rubicon
SouthTJ is offline   Quote Quick Reply
Old 09-27-2012, 09:04 AM   #16
Jeeper
 
vballspen's Avatar
 
Join Date: Dec 2009
Posts: 335
Send a message via Skype™ to vballspen
My gf used to have a 96 bronco and when the back window was down on tat it stuck bad in the cab. But it had duel flow ,masters idk if that changes anything. I very rarely smell anything.
__________________
I'm going to drive it till the wheels fall off, put them back on, and keep going.
vballspen is offline   Quote Quick Reply
Old 09-27-2012, 10:25 AM   #17
Jeeper
 
Join Date: Oct 2011
Posts: 1,526
Quote:
Originally Posted by SouthTJ View Post
That's why they used to put the little spoiler on the back of the old station wagons.
I had a station wagon with a spoiler, but the rear window (by design) did not open.

Quote:
Originally Posted by chilly View Post
Not dismissing the potential risk, but just sharing my personal experience.
When you conduct a poll of Russian Roulette players, it usually appears that everyone is a winner.

Quote:
Originally Posted by vballspen View Post
I very rarely smell anything.
For sure, you never smell carbon monoxide. It's odorless.
tangofox007 is online now   Quote Quick Reply
Old 09-27-2012, 10:27 AM   #18
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,452
Images: 2
As mentioned above, keep in mind that carbon monoxide is odorless and tasteless.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 09-27-2012, 11:10 AM   #19
Jeeper
 
Neil F.'s Avatar
 
Join Date: Nov 2007
Location: Marlton, NJ
Posts: 5,261
Images: 1
Quote:
Originally Posted by tangofox007 View Post
I had a station wagon with a spoiler, but the rear window (by design) did not open.

.
It was ther to divert air across the window to help keep it clean.
__________________
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.
Neil F. is offline   Quote Quick Reply
Old 10-10-2012, 10:53 AM   #20
Jeeper
 
SEAICE's Avatar
 
Join Date: Aug 2012
Posts: 308
Images: 10
Yes, Carbon Monoxide is odorless, but the rest of your emissions are not...

I'm 51, and through the years have driven all sorts of vehicles without the rear window and others with holes in the floor and exhaust leaks so bad it hurt your eyes. You'll feel the effects of other exhaust gasses long before CO becomes a danger. If you don't smell too much exhaust and your eyes don't hurt, you're fine... I'm driving w/o a rear window right now (because I don't have one)
SEAICE is offline   Quote Quick Reply
Old 10-10-2012, 11:23 AM   #21
Full Size Jeep Dr.

WF Supporting Member
 
lindel's Avatar
 
Join Date: Nov 2011
Location: The land of Salted Iron
Posts: 1,909
Quote:
Originally Posted by Neil F. View Post
It was ther to divert air across the window to help keep it clean.

And it usually doesn't work for that either.

__________________
His: 1999 Flame Red TJ, With a few mods...

Hers: 1987 Grand Wagoneer, stock w/Falken Wildpeak ATs
lindel is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 05:28 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC