Smoke coming out of my vents - 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 11-19-2011, 04:20 PM   #1
Jeeper
 
Join Date: Aug 2011
Posts: 54
Question Smoke coming out of my vents

Now that i've got my high idle fixed, its time to work on other things. I noticed a couple weeks ago that i have smoke coming out of my air vents. It kinda smells like radiator fluid. Any ideas?

LukeWesley is offline   Quote Quick Reply
Old 11-19-2011, 04:35 PM   #2
Jeeper
 
old_blue's Avatar
 
Join Date: Apr 2011
Location: Central Jersey
Posts: 869
sounds like your heater core is shot, does it only happen when the heat is on?

old_blue is offline   Quote Quick Reply
Old 11-19-2011, 04:59 PM   #3
Jeeper
 
Skyhawk32's Avatar
 
Join Date: May 2011
Location: New Jersey
Posts: 6,142
Yup it's a heater core keep an eye on the coolant level. It's an all day job if you know what you're doing
__________________
Four words I am proudest of
I am a veteran
24 years USAF Retired
Jet Mach forever
Skyhawk32 is offline   Quote Quick Reply
Old 11-19-2011, 05:34 PM   #4
Jeeper
 
Wheel2Work's Avatar
 
Join Date: Feb 2011
Location: Southern Oregon
Posts: 874
Replacing the heater core isn't for the faint of heart! You have to be prepared to remove the steering column and dash to access it. It's a repair I would go to a reputable shop to have done, since mine is a daily driver in the winter.
__________________
2000 4.0l Sport, Auto, some mods done - planning more
Wheel2Work is offline   Quote Quick Reply
Old 11-19-2011, 08:01 PM   #5
Jeeper
 
Join Date: Aug 2011
Posts: 54
Well it doesn't just happen when the heater is on, it happens when the system is off.
LukeWesley is offline   Quote Quick Reply
Old 11-19-2011, 08:14 PM   #6
Jeeper
 
TreeClimber1's Avatar
 
Join Date: Nov 2011
Location: Washington
Posts: 383
The heater core is essentially the exact same thing as a radiator, only much much smaller. It takes hot engine coolant, and circulates it in a small radiator. The blower motor is connected to a fan blade, which blows cabin air thru the heater core (small radiator) and into the cabin of the vehicle. When the heater core develops a small leak, the 'steam' looks like smoke, and enters the cabin. It will have a sweet smell. IT DOESN'T MATTER IF THE HEATER IS ON OR OFF, THE LEAK IS STILL PRESENT. So it's something that needs to be either taken care of, or bypassed.

If you wish to simply 'bypass' the system, unhook the two heater hoses which enter the firewall from the engine bay, as these are the supply and return hoses to the heater core. Use a simple piece of pipe, or, a 'flush kit' connector to connect the two hoses together. This eliminates the heater core, and removes the leak from the cooling system until such time as you can properly repair the system. However, you're going to get cold.

The heater core is encased in the heater box, which encompasses virtually the entire ventilation system. It's a huge Pain In The Arse to remove, as will require major dash removal. Make sure to order the replacement heater core in advance of dissassembly.
__________________
1992 YJ, 401 V8, EFI, TH400, Atlas, D60s, Detroits, Warn 8274, Cage, 37 Krawlers
1997 TJ, 350 V8, EFI, TH400, Atlas 4spd, D60s, Detroits, Warn 12000, Cage, 40 Kevlars
TTC 1994, TTC 2012, Trail Tour participant.
TreeClimber1 is offline   Quote Quick Reply
Old 11-19-2011, 09:03 PM   #7
Jeeper
 
Uranus's Avatar
 
Join Date: Jul 2010
Location: Burbank, Ca
Posts: 349
Images: 2
I replaced my core 7 months ago, it wasn't too bad, and I consider myself an average mechanic. There are good write ups out there. It took me about 8 hours. Take a lot of pictures Be warned you need to evac your AC and recharge it when you are done.
Uranus is offline   Quote Quick Reply
Old 11-21-2011, 05:35 PM   #8
Jeeper
 
Join Date: Aug 2011
Posts: 54
Anyone ever used a Murray heater core from O'reilly? Are they any good? I can't find anything bad about em online but I can only find a couple of good reviews.
LukeWesley is offline   Quote Quick Reply
Old 11-21-2011, 07:54 PM   #9
Jeeper
 
Uranus's Avatar
 
Join Date: Jul 2010
Location: Burbank, Ca
Posts: 349
Images: 2
I got my heater core from O'riley, I don't remember the brand but it was the only one the carried.

Uranus is offline   Quote Quick Reply
Reply

Tags
air vent , radiator , smoke

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:
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Breather vents for axles, transfer case and transmission gotrailin JK General Discussion Forum 13 09-21-2012 03:31 PM
Extractor by Rebel Offroad - Carbon Fiber JK Hood Vents REBEL OFF ROAD Vendor Spotlight! Great Deals for Members. 5 08-29-2011 04:42 PM
dash vents robbiecc TJ General Discussion Forum 6 08-15-2011 11:28 AM
Air Conditioner blows out defrost vents on freeway CopperCrawler TJ General Discussion Forum 11 03-29-2011 11:22 AM
Just me? or do the floor vents not work very well? Mr_RPM TJ General Discussion Forum 18 02-04-2011 09:37 AM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 12:34 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