heat problem - 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 12-27-2010, 05:11 PM   #1
Newb
 
Join Date: Dec 2010
Location: boston
Posts: 11
heat problem

i have a 97 jeep tj with 155 thousand miles.the jeep had very little heat when i bought it a week ago.i flushed it several times and it helped but its back to luke warm heat.at first the antifreeze was brown'ish but its all new with a new thermostat.maybe cloged heater core but when i flushed it flowed good.any ideas please let me know thks

tow21 is offline   Quote Quick Reply
Old 12-27-2010, 05:17 PM   #2
Jeeper
 
Join Date: Mar 2010
Location: Connecticut
Posts: 449
I've got he same problem... but my friends YJ heat is awesome, I could cook in it..
I no there's been a thousand threads on this over the past week, but does anyone have other advice, do we need a new heater core or heating system

97'wrangler is offline   Quote Quick Reply
Old 12-27-2010, 05:27 PM   #3
Jeeper

WF Supporting Member
 
TexasT's Avatar
 
Join Date: Oct 2009
Location: Texas Hill Country
Posts: 754
There are two hoses connected to the core, the water goes in one and returns in the other. After the engine warms up and you have your heater on, they should both be hot to the touch. If they're cold you're not getting hot water to or through the core. Post back.
__________________
1999 Sahara
D30 w/powertrax no-slip,D35 w/ultimate 35 upgrade OX locker,4.56 gears,Air on Board, Mile Marker Winch
Warn Lockout Hubs

FIVE GRANDCHILDREN!!!!
TexasT is offline   Quote Quick Reply
Old 12-27-2010, 05:31 PM   #4
Jeeper
 
98tj25l's Avatar
 
Join Date: Nov 2010
Location: Akron/Cleveland
Posts: 139
Images: 1
You can also check your blend door. It's located next to the passenger foot vent. This door controls how much air flow goes across the heater core. If you watch it as you move your temperature slider, you will see it move.
__________________
Yeah I got a four banger, big whoop, wanna fight about it!?
98tj25l is offline   Quote Quick Reply
Old 12-27-2010, 05:36 PM   #5
Newb
 
Join Date: Dec 2010
Location: boston
Posts: 11
i had both hoses hot but not to the touch i hear its alot of work to change the heater core?the blend door is working fine.not looking forward to taken the dashboard out to do it.
tow21 is offline   Quote Quick Reply
Old 12-27-2010, 05:48 PM   #6
Jeeper
 
98tj25l's Avatar
 
Join Date: Nov 2010
Location: Akron/Cleveland
Posts: 139
Images: 1
Yeah changing the heater core is a fairly involved project. I'm sure there are a few write ups on here that should help you a lot.
__________________
Yeah I got a four banger, big whoop, wanna fight about it!?
98tj25l is offline   Quote Quick Reply
Old 12-27-2010, 05:55 PM   #7
Jeeper

WF Supporting Member
 
TexasT's Avatar
 
Join Date: Oct 2009
Location: Texas Hill Country
Posts: 754
Another check would be to disconnect the hoses at the core and take one hose completely off the engine. Then using the hose that is still connected to the engine, put the other end onto the other outlet on the engine, making a loop using one hose. If that hose gets hot...you have a heater core problem. If the loop hose is not the same temp as the radiator hose, you have a circulation problem. Have not done this on 4.0 but have used it to troubleshoot V8's.
__________________
1999 Sahara
D30 w/powertrax no-slip,D35 w/ultimate 35 upgrade OX locker,4.56 gears,Air on Board, Mile Marker Winch
Warn Lockout Hubs

FIVE GRANDCHILDREN!!!!
TexasT is offline   Quote Quick Reply
Old 12-27-2010, 06:02 PM   #8
Newb
 
Join Date: Dec 2010
Location: boston
Posts: 11
thanks for all ur help ill try that this weekend still trying to dig out from this bilzzard of 2010

tow21 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Shifting problem 93 Sahara borispsu General Jeep Discussion 4 04-24-2010 05:17 PM
Problem with the heat maybe? FUTUREJKOWNER JK General Discussion Forum 10 03-19-2010 05:07 PM
Heater/AC Problem... jwh21236 TJ Tech Forum 1 02-28-2010 07:26 AM
Timin, fuel/air problem, please help! Ramon2 YJ Tech Forum 5 02-11-2010 08:17 AM
Yet another heat question. jamesdeanblvd TJ Tech Forum 6 01-27-2010 10:51 PM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 09:12 PM.



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