Air Vents - JeepForum.com

 
LinkBack Thread Tools
post #1 of 7 Old 09-07-2012, 11:04 AM Thread Starter
rob84044
Registered User
 
Join Date: Mar 2012
Location: fredericksburg
Posts: 13
Air Vents

Hello. I have a serious issue i feel.


To start off, only my face vents and my defroster vents will blow air thru them. None of the other options for the air veents will work.

Second off, whenever I start going about 40 miles an hour or higher ( whenever I start to involve higher gears, (it is an automatic) ) the air will go from the face vents to the defroster vents. And once I slow down or finally pass thru to the higher gear, the air will return to the face vents.



And now only recently the face vents arnt working. It is boggling my brain..

rob84044 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 09-07-2012, 11:16 AM
PolkaPower
Registered User
1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss
Posts: 19,527
Sounds like it could be a vacuum leak. Check all of you lines under the hood. Just a guess though.
PolkaPower is online now  
post #3 of 7 Old 09-07-2012, 11:26 AM Thread Starter
rob84044
Registered User
 
Join Date: Mar 2012
Location: fredericksburg
Posts: 13
What do these lines look like?
Are they the two tubes going into the fire wall?
rob84044 is offline  
post #4 of 7 Old 09-07-2012, 11:32 AM
melk
Registered User
1996 ZJ 
 
Join Date: Sep 2009
Location: Charlotte
Posts: 2,890
The vents are controlled by vacuum pressure.

This vacuum line terminates under the battery tray, where it must be securely attached to the box.

I would check that first.

edit, the vac lines are small-diameter black rubber hose. They attach to the intake manifold. Trace back the one that goes along the firewall and passenger side fender to the box under the battery tray as I described above.
melk is offline  
post #5 of 7 Old 09-07-2012, 11:58 AM
mtsgsd
Member
1999 WJ 
 
Join Date: Aug 2012
Location: Somers
Posts: 121
I just fixed that problem my self. The hose was fitting too loosely at the vacuum reservoir under the battery. For some reason this is not a barbed fitting either. It's only about 18" or so of rubber hose that connects to a network of plastic lines, so It's a cheap fix too if that's the only issue.
mtsgsd is offline  
post #6 of 7 Old 09-24-2012, 11:46 AM Thread Starter
rob84044
Registered User
 
Join Date: Mar 2012
Location: fredericksburg
Posts: 13
Quote:
Originally Posted by mtsgsd View Post
I just fixed that problem my self. The hose was fitting too loosely at the vacuum reservoir under the battery. For some reason this is not a barbed fitting either. It's only about 18" or so of rubber hose that connects to a network of plastic lines, so It's a cheap fix too if that's the only issue.
can u post a picture of which lines?

I will post a picture later tonight with something i think you all are talking about.
rob84044 is offline  
post #7 of 7 Old 09-24-2012, 12:07 PM
Glasssplinter
Registered User
1994 ZJ 
 
Join Date: Sep 2010
Location: Farmington
Posts: 219
There was also a TSB on this that you need to add a check valve in the line that goes through the firewall to the climate control selector. This was the link someone else had posted

http://dodgeram.info/tsb/1996/24-01-96a.htm

'94 ZJ, 4.0L, 231 TC
Icom V-8000 with 1/4 wave
Glasssplinter is offline  
Reply

Tags
air , automatic transmission , firewall , speed , vents

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
mist/smoke coming out of A/C Vents and Dash vents scambi ZJ Grand Cherokee Forum 13 06-24-2015 11:45 PM
Air Vents andrew44 WK Grand Cherokee & XK Commander Forum 14 02-27-2013 12:07 PM
vents? Ender42 ZJ Grand Cherokee Forum 1 09-13-2009 07:24 PM
vents?!? 2000_WJ ZJ Grand Cherokee Forum 0 07-01-2009 09:13 AM
Vents 95GCV8 ZJ Grand Cherokee Forum 4 05-15-2006 09:47 PM

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 On
Refbacks are On

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