No heat.... or very little - JeepForum.com

 
LinkBack Thread Tools
post #1 of 6 Old 12-22-2013, 11:33 AM Thread Starter
Kevinyj95
Registered User
1995 ZJ 
 
Join Date: Jun 2012
Location: Presque Isle
Posts: 756
No heat.... or very little

Barely any heat at all wont even defrost the window. Kinda sucks when you have to get out and scrape your window every two mins in the freezing rain.
00 4.7. new rad, water pump , fan clutch and thermostat 195*. It did this last year before the new parts as well. heat core has good flow flushed it twice. NO leaks no air. The heat is warm hot when its warmer like fall. Now that its winter were freezing again. blows air good just only slightly warm. Thanks for any help or tips. Im thinking heater core but it has good flow when I hook the hose to it and flush it.

Kevinyj95 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 12-22-2013, 12:11 PM
creepingdeath94
Registered User
2000 WJ 
 
Join Date: Sep 2010
Location: port saint lucie
Posts: 147
Maybe blend doors not making a good seal between heater core/evaporator side? If the foam internally has come apart it could just be inefficient for how cold it is.
creepingdeath94 is offline  
post #3 of 6 Old 12-22-2013, 12:41 PM
LowLyfe
Registered User
2002 WJ 
 
Join Date: Feb 2012
Location: Helena
Posts: 97
Both sides blowing cold air?

02' Jeep WJ Limited Edition - Stock height on Hankook Dynapro ATM RF10's 235/65/17
LowLyfe is offline  
post #4 of 6 Old 12-22-2013, 02:04 PM Thread Starter
Kevinyj95
Registered User
1995 ZJ 
 
Join Date: Jun 2012
Location: Presque Isle
Posts: 756
yes its the same everywhere.
Kevinyj95 is offline  
post #5 of 6 Old 12-22-2013, 02:44 PM
86cj74.2L
Web Wheeler
 
86cj74.2L's Avatar
2004 WJ 
 
Join Date: Jul 2006
Location: Stouchsburg, PA
Posts: 9,700
If you are not overheating and your engine temps are always normal its time to look at your heater controls.

You could loosen a clamp on the coolant lines going to the heater core and make sure coolant comes out.

Doing a few 3/4 throttle accelerations to 60 should push any air trapped in the heater core back into the block where it can get dumped into the rad.
86cj74.2L is offline  
post #6 of 6 Old 12-22-2013, 03:09 PM
abock33
Registered User
2001 XJ Cherokee 
 
Join Date: Jun 2009
Location: Northern KY
Posts: 62
My heat was the same way until Friday. Bit the bullet and put a new heater core in it. I had good flow as well. When I pulled the old one it weighed three times as much as the new one. It turns out it was most of the way clogged but i couldn't tell cause the flow through the clear tubes was hiding the issue. It's nice to have heat. If you can set aside a day and replace it as we'll as your a/c evap core since your in there.

"Of course he likes your idea. When one retard on the short bus licks the window, the others think it's a great idea and start licking like crazy!" Rob99
abock33 is offline  
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.



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



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