Black Debris from AC Vents - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 07-15-2013, 05:18 PM   #1
jonwooding's Avatar
Join Date: Jul 2013
Location: San Antonio, TX
Posts: 65
Black Debris from AC Vents

Hey guys, I was only able to find one other thread on this and no one posted anything about it.
I recently bought a 97 Sport and the PO thought the compressor was froze up due to a sound he was hearing when he tried to run the AC. After I got it and took a look around I realized the compressor was fine and the sound he was hearing was just it cycling on and off every few seconds because it was low on freon. I dumped some in there and the AC started working fine (good thing for me, I thought that was going to be an expensive fix). Now when it's running and I crank it up or hit a bump this strange black material comes flying out of the vents and I'm always convinced that I'm being covered in spiders haha

It's black and almost looks like a mesh jersey material or dried out coral. I'll try to post a picture, I didn't clean all of it out. I was just curious if perhaps it was some piece of plastic or something that got deteriorated after not running the AC for several years or some form of mold or something. Any ideas?


jonwooding is offline   Quote
Old 07-15-2013, 05:36 PM   #2
jonwooding's Avatar
Join Date: Jul 2013
Location: San Antonio, TX
Posts: 65
Snapped a picture.
Attached Thumbnails
Click image for larger version

Name:	image-2537558081.jpg
Views:	37
Size:	210.9 KB
ID:	273207  

jonwooding is offline   Quote
Old 07-15-2013, 06:13 PM   #3
Join Date: Mar 2011
Posts: 432
That's the lining in the A/C condensate drain. Think of it as a coarse sponge that sits in the drain tray, intended to avoid water sloshing out. Not having it may mean an occasional drip of cold water onto your carpet or the passenger's foot when turning a sharp corner. Honestly I would clean up the pieces and not worry.
1967 Kaiser Commando
2001 Grand Cherokee WJ
2003 Rubicon TJ
KaiserJeep is offline   Quote
Old 07-15-2013, 07:07 PM   #4

WF Supporting Member
Hardermods's Avatar
Join Date: Jul 2009
Location: Kansas
Posts: 1,553
That reminds me, mines been spitting this out recently as well, I just keep forgetting to remove the center vents and clean it out!

As stated its for the drain, nothing real worrisome so I'd just clean it as it blows out and call it a day
Hardermods is offline   Quote
Old 07-15-2013, 10:58 PM   #5
jonwooding's Avatar
Join Date: Jul 2013
Location: San Antonio, TX
Posts: 65
Okay thanks very much! That must be what it is because I also was having the water buildup on the passenger floorboard so I installed about a foot of 5/8" vinyl tubing onto the condensate drain.
Appreciate the help
jonwooding is offline   Quote

Thread Tools

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:42 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

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