Ac/heater issue - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Ac/heater issue

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineJeep speedometer gears at rockridge4wdTeraFlex Now at Rockridge 4WD! BEST DEALS around!

Reply
Unread 11-23-2013, 09:45 PM   #1
pmillz09
Registered User
1994 ZJ 
 
Join Date: Oct 2013
Location: fountain valley, ca
Posts: 12
Ac/heater issue

Since I finally fixed my engine issues now it's time to work on this problem. Randomly 1 day about 3 months ago my heater and ac decided to stop working. Not entirely stop but it has to be on max blower and no matter what setting you have for which vents it only blows from the front vents. Makes it take a long time defrost the windshield in the morning. Has anyone had this problem or know what to look at? I'm dumbfounded on this one...

pmillz09 is offline   Reply With Quote Quick reply to this message
Unread 11-23-2013, 10:06 PM   #2
WJ4x4LIFE
Registered User
 
Join Date: Sep 2012
Posts: 574
Quote:
Originally Posted by pmillz09 View Post
Since I finally fixed my engine issues now it's time to work on this problem. Randomly 1 day about 3 months ago my heater and ac decided to stop working. Not entirely stop but it has to be on max blower and no matter what setting you have for which vents it only blows from the front vents. Makes it take a long time defrost the windshield in the morning. Has anyone had this problem or know what to look at? I'm dumbfounded on this one...
The system runs on vacuum to start off, just to get you an idea of where I am going with this. You have small vacuum lines w/ a "check valve" that runs from your intake manifold into the cab and this is what and how the sub-assembly works on. You can start by checking there at the lines in the engine bay, and see if they are disconnected or rotted away. Some lines with can be disconnected or clogged up inside the cab behind the dash, where the blend door may sometimes starts to act up and cause issues like the one you have now.
WJ4x4LIFE is offline   Reply With Quote Quick reply to this message
Unread 11-30-2013, 09:44 AM   #3
pmillz09
Registered User
1994 ZJ 
 
Join Date: Oct 2013
Location: fountain valley, ca
Posts: 12
I haven't had a chance to check all that stuff yet but I had something interesting happen this morning. After I turned the jeep off the blower wouldn't turn off I had to pull the fuse. First time this has happened
pmillz09 is offline   Reply With Quote Quick reply to this message
Unread 11-30-2013, 08:38 PM   #4
pmillz09
Registered User
1994 ZJ 
 
Join Date: Oct 2013
Location: fountain valley, ca
Posts: 12
Just found out another interesting thing. With the blower fuse out I can't start the jeep... But this is only coming out I think because of the cold weather I'm in currently. I'll know more when I get back to home but any ideas on this??
pmillz09 is offline   Reply With Quote Quick reply to this message
Unread 12-01-2013, 03:12 PM   #5
Oldfrog
Web Wheeler
1997 ZJ 
 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 4,113
There's an electrical connector under the glove box that tends to become loose and/or melt. Check it. It's easy to find and located near front center under the glove box.
__________________
Cajun Recipes and Fishing tips

Words of wisdom, Posted by Zeejay:
"..it's not air, it is the opposite of air... suckage so to speak."

Stalling? Work through Zeejay's list
Oldfrog is offline   Reply With Quote Quick reply to this message
Reply

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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.