Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > Grand Cherokee Tech
Register Forgot Password?
Search

Welcome to Cherokee Forum!
Welcome to Cherokee Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 01-25-2009, 08:28 PM   #1
Newbie
 
Join Date: Nov 2008
Posts: 9

View 68alltheway's Photo Album My Photos
Cherokee
Default All defrost/ no dash of floor. a/c and heat

No matter which position the switch is in all the air comes out of the defrost. It is a 2003 Grand Cherokee Laredo. Its been happening for a few months and I'd loke to have it fixed before summer. I need help. When it started acting up you could cut it to the vents and cut off the ignition and back on. When I'd start the motor back up it would blow out of the vents. But now now matter what hot or cold or floor or dash, it always blows out of the defrost vents.
68alltheway is offline   Reply With Quote
Old 01-25-2009, 09:08 PM   #2
CF Veteran
 
finneys98xj's Avatar
 
Join Date: May 2008
Location: Virginia
Posts: 2,676

View finneys98xj's Photo Album My Photos
1993 Cherokee
Send a message via Yahoo to finneys98xj
Default

vaccum line!!!!

Check all of yoor vac line.
__________________
RIP Heep!1998-2008)
Her last stand!
http://www.cherokeeforum.com/showthr...3996#post83996

Her Replacement.
http://www.cherokeeforum.com/f46/big-stinky-9651/


www.cherokeetalk.com
Tell them finney98xj sent you.

I rather be Stroked than Rammed and I dont do Bowties!
finneys98xj is offline   Reply With Quote
Old 01-25-2009, 09:13 PM   #3
Senior Member
 
jpdocdave's Avatar
 
Join Date: Aug 2008
Location: tan house white shutters key's under the flower pot
Posts: 969

View jpdocdave's Photo Album My Photos
1996 Cherokee
Default

yup, the default position if there's no vacuum is defrost. there's a vacuum line coming out of the firewall on the passenger side where the evaporator lines come out. that vacuum line gets an engine vacuum, follow it and make sure its not broken or disconnected.
__________________
96 xj sport 2" bb 31's
90 mj 4.0 4x4 d44
87 yj frame off (crazy red head)
90 yj soa

pics of project "crazy redhead" http://s293.photobucket.com/albums/m...0build%20pics/
jpdocdave is offline   Reply With Quote
Old 01-28-2009, 09:42 AM   #4
Member
 
Join Date: Jul 2008
Location: Argos indiana
Posts: 204

View skiebuster's Photo Album My Photos
98 Cherokee
Default

Quote:
Originally Posted by finneys98xj View Post
vaccum line!!!!

Check all of yoor vac line.
THats what my problem was. After posting the same question i went out and my father and i started looking and the vacuum line, big hose, from underneath the intake, bottom side of the throttlebody had popped off.
__________________
98 GrandCherokee LIMITED 4x4 4.0 auto 124,000 miles and counting.

99 Grand Cherokee Laredo 4x4 4.0 auto, leather, sunroof. 191,000 miles and new motor !
skiebuster is offline   Reply With Quote
Old 02-09-2009, 01:33 PM   #5
Newbie
 
Join Date: Nov 2008
Posts: 9

View 68alltheway's Photo Album My Photos
Cherokee
Default FIXED!!!

I found a vacuum line behind the headlight that was rotted and cracked. The a/c and heater work perfect now. But the cruise control still doesn't work. The CRUISE light on the dash comes on but it won't engage. I checked the wiring through the column and it ohmed out good. Could it be another vacuum line?
68alltheway is offline   Reply With Quote
Old 02-06-2010, 03:00 PM   #6
Newbie
 
Join Date: Feb 2010
Location: Michigan
Posts: 1

View gav70's Photo Album My Photos
1996 Grand Cherokee
Send a message via MSN to gav70
Default vac line for blower

Quote:
Originally Posted by 68alltheway View Post
I found a vacuum line behind the headlight that was rotted and cracked. The a/c and heater work perfect now. But the cruise control still doesn't work. The CRUISE light on the dash comes on but it won't engage. I checked the wiring through the column and it ohmed out good. Could it be another vacuum line?
Could you please give details on where the vac line is located? I have the same problem on me 96 grand cherokee and I'm trying to find where is comes out from the firewall under the hood. You said that it was rotted and cracked behind the headlight. Was it the driver side or passenger? do you know where it comes out from the firewall and what does it look like?

Help is much appreciated.
Thanks
G
gav70 is offline   Reply With Quote
Old 06-25-2010, 10:12 PM   #7
Newbie
 
Join Date: Dec 2009
Posts: 17

View swluther's Photo Album My Photos
Cherokee
Default

Hi, I am having the same problem with my a/c and heater only coming from the defroster. I see you fixed yours. I found that line by the headlight too, and it was cracked just fell apart when I pulled on it. i want to get new line, but now where does it plug back into??? PLZE HELP< IT'S HOT OUTSIDE
Stormy
swluther is offline   Reply With Quote
Old 06-25-2010, 10:12 PM
 
 
 
submit to reddit
Reply

Tags
air conditioning, defrost, heater, problem, vents
Go Back   Jeep Cherokee Forum > Technical Discussion > Grand Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Air Conditioning/Defrost gman32234 OEM Cherokee Tech 3 06-25-2010 10:16 PM
new pump and belt, and now defrost grinding sk8nrob OEM Cherokee Tech 3 11-06-2008 06:16 PM
heat problems nascarfan88 General 1 10-05-2008 07:53 PM
AC on defrost only ? skiebuster Grand Cherokee Tech 10 08-15-2008 11:18 AM
Summer heat Miss Amy Off-Topic Discussion 54 05-23-2008 08:03 AM


All times are GMT -5. The time now is 07:27 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site is in no way affiliated with Jeep or Chrysler.

Emails Backup