AC/ Heat Help - Jeep Wrangler Forum
Jeep Wrangler Forum

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

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 04-23-2013, 01:32 PM   #1
Jeeper
 
Join Date: Jan 2013
Location: Orlando
Posts: 28
AC/ Heat Help

Hey guys I'm looking for some help with my heater and AC. I just recently purchased my TJ and the AC worked but heater did not. The AC works on all but the highest setting. The Heat blows cool. I found a shut off valve in the engine bay that the prior owner appears to have installed which looks to shut off flow to the heater core. I opened the valve and found that upon doing that, my heat works but my AC no longer works at all! After doing this the AC blows hot. I assume that the heater core isn't plugged seeing as how when it receives flow, it blows hot. Then why when this happens does the AC stop working? The shut off valve is leaking when I close it now to get AC I must've kicked loose the corrosion it had sealing it together so I need to replace the radiator hose from the thermostat to the core with a new un-tampered with one but what else can I do the fix this issue?

I appreciate the help guys!

Franciscoapg is offline   Quote Quick Reply
Old 04-23-2013, 01:41 PM   #2
Jeeper
 
flflash's Avatar
 
Join Date: Mar 2013
Posts: 519
Its possible your temperature control door isn't working when turning the knob from cold to hot can you pyhsicaly hear the door ploping closed at both positions? If not cable may be off at either the control head or the door or the control head unit itself is stripped.

flflash is offline   Quote Quick Reply
Old 04-28-2013, 10:46 PM   #3
Jeeper
 
Join Date: Jan 2013
Location: Orlando
Posts: 28
Quote:
Originally Posted by flflash View Post
Its possible your temperature control door isn't working when turning the knob from cold to hot can you pyhsicaly hear the door ploping closed at both positions? If not cable may be off at either the control head or the door or the control head unit itself is stripped.
You were right, thanks for giving me the idea to check that. The prior owner must've not figured that out and went the hard way by shutting off flow to the heater core. The cable had been disconnected so when the selector was switched the actual unit to change from hot to cold wouldn't be affected. The cable ran from the back of the climate control switch box to down by the passenger's footwell. Thanks a lot!
Franciscoapg is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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

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 Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 09:15 AM.



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