Mildew Smell from Heater Vents - JKowners.com : Jeep Wrangler JK Forum
 
LinkBack Thread Tools Display Modes
post #1 of 8 Old 01-10-2015, 11:10 AM Thread Starter
Wheeler
 
Join Date: Apr 2013
Posts: 72
Feedback: 0 reviews
Mildew Smell from Heater Vents

Hi Everyone,

Now that winter is here, we are getting a strong smell from the vents when the heater is blowing. It smells like wet carpet or towels after they begin to stink. It only smells when the heater is on. (maybe AC too but it's real cold out so I haven't verified that)

I haven't had a chance to troubleshoot yet but was wondering if anybody had any recommendations. My jeep is a VERY late 2013 with only about 6K miles on it and is garage kept. Low miles but it isn't our daily driver. It's never been in the rain while topless, etc...

The couple of thoughts I have are these possibilities:
1. Maybe used the AC the last time we drove it and it sat for many weeks and now there is some residual water/moisture that went stagnant or grew mold/mildew.

2. Possibly some mice found their way into the HVAC duct-work and answered the call of mother nature in there somewhere. Although, I really don't think it smells like mouse pee, I guess it is possible.

Other than these 2 possibilities, I'm stumped.

Any ideas on what I should check, how I should clean this to remove the stank, etc...?


Thanks
Jerry1 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 01-10-2015, 01:58 PM
Comfortably Numb
 
RubiCajun's Avatar
 
Join Date: Dec 2008
Location: Louisiana
Posts: 12,289
Garage
Feedback: 1 reviews

You may have a leak that runs down to your carpet from the intersection of the top and the top of the door. Stick your nose down close to the carpet and snort. To get the smell out pour some Arm and Hammer over the carpet and pour it on thick. Leave it on a couple of days and vacuum. You can also buy some stuff thats made specifically for getting rid of mold smell. Good luck.

08 Rubi Unlimited named Freebird

Quote:
Originally Posted by StubEXrube View Post
Cat killing would almost certainly decline if we were allowed to hunt liberals.
Asylum media group llc all rights reserved ©2015

Last edited by RubiCajun; 01-10-2015 at 02:09 PM.
RubiCajun is offline  
post #3 of 8 Old 01-10-2015, 02:25 PM
Rock God
 
ronjenx's Avatar
 
Join Date: Aug 2010
Location: Maine
Posts: 1,872
Feedback: 0 reviews

It's common to get that smell in the HVAC system when the condensate drain is plugged.

2008 Unlimited Rubicon Automatic
ronjenx is offline  
Sponsored Links
Advertisement
 
post #4 of 8 Old 01-10-2015, 02:32 PM
Rock God
 
Guruman's Avatar
 
Join Date: Feb 2010
Location: Thompson Falls, Montana
Age: 48
Posts: 1,146
Garage
Feedback: 0 reviews

Older Jeeps had a drain tube that drained excess water out of the hvac box.Anything that gets into the hvac intake vent on the cowl goes through the heater box. Sticks/leaves/mud and plug the drain and water would stagnate in the heater box.

I assume the JK's have a similar drain. I bet yours is plugged with gunk.

I tried to find an image of it but could not. It should be a hose hanging down from the firewall on the passenger side of the engine somewhere, with a weird looking flat nozzle on it. I'm pretty sure it's the only one that does not run to anything. Clean it out, flush it with a hose and run water though from the cowl to make sure it's clean and draining, and you should be good.

_
'76 CJ-7, '43 CJ-2a, '78 Bronco,'78 CJ-7, '75 CJ-5, '78 CJ-7, '80 CJ-7, '78 SJ, '79 SJ, '78 and a '76 FJ-40 , '90 XJ, '91 XJ, '86 CJ-7, '95 ZJ, '68 CJ-101 Commando, '00 TJ, '68 M-715, 2 '86 Military Blazers, '96 LR Discovery, '86 CJ-7, '91 YJ, '99 TJ, 07' JKU Rubi, 1988 YJ, 1973 Commando, 3 Diesel Excursions....
Now back to a 2013 JKU Rubicon with "stuff", planning 37's with minimal lift.

I've tried them all... Jeeps are still the best. (0||||0)
Guruman is offline  
post #5 of 8 Old 01-11-2015, 08:30 AM
Wheeler
 
Join Date: Jul 2009
Age: 43
Posts: 28
Feedback: 0 reviews

mine was the same until I pulled the carpet out about 4 years ago.
bluedevil8008 is offline  
post #6 of 8 Old 01-18-2015, 01:04 PM Thread Starter
Wheeler
 
Join Date: Apr 2013
Posts: 72
Feedback: 0 reviews

Well, this is a bit embarrassing but I did say that had NOT yet troubleshot anything!

Turns out that it was my Husky floor mat on the driver's side. I guess I brought home some presents from our buddy's farm a month or so ago. Couldn't smell anything until hot air blew out of the floor vents and onto the mat.

Probably did 20 minutes of troubleshooting until I found it. I expected it to be coming from the duct work and was starting to lean toward a dead mouse. LOL Funny how a little poo doesn't really smell like poo with the proper set of circumstances.

Sorry for the false alarm.

Jerry

Last edited by Jerry1; 01-24-2015 at 08:17 AM.
Jerry1 is offline  
post #7 of 8 Old 01-21-2015, 05:06 AM
Granite Guru
 
Join Date: May 2009
Location: Rochester, NY
Age: 50
Posts: 437
Feedback: 0 reviews

Don't apologize. You're finding the smell coming from your floor mat makes me think about pulling mine and cleaning the carpet before tearing into the HVAC system.
I've been getting the mildew smell in the mornings when I first start up the Jeep (more like anytime I'm not running it with heat).
I know the carpets are a mess.. there's more salt there than on the roads!


So thanks for the tip!
Grimscale is offline  
post #8 of 8 Old 01-21-2015, 06:58 AM
Rock God
 
bgall's Avatar
 
Join Date: Feb 2012
Posts: 1,272
Feedback: 0 reviews

Ditched my carpet and bolted my floor mats in some time ago. No regrets. One day I will get around to bed lining the tub. Need to do it soon as I will be selling the pumpkin.

I have jeeps. I do shit to them.
bgall is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JKowners.com : Jeep Wrangler JK 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome