heater problem - Jeep Wrangler Forum

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

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 11-13-2008, 05:10 PM   #1
Join Date: Sep 2008
Posts: 30
hank1 is on a distinguished road
heater problem

I checked the archives for this problem but have another question. My heater is blowing lukewarm at best. The thermostat is working correctly although it is a 185. The engine temp is just below 210 at the guage. I earlier flushed the engine and radiator with Prestone flush. At the same time I turned the heater on full hot so I assumed the core would be flushed also. There was a lot of rusty water in the engine. The heater did not improve.

Today, after a ten mile drive I felt the heater hoses. The hose coming from the thermostat housing, which I figure is the inlet hose, was hot as the radiator hose while the other wasn't nearly so. I don't see any vacumm lines or other devices attached to either hose. I think the easiest next step is to flush the core through the heater hoses and that brings me finally to my question.

Can I unhook the two hoses at the thermostat housing and wherever the second one attaches and backflush the core with a garden hose at low flow? If not, how would you folks recommend I do it? I've read as much about all of this as I can find but I still want to make sure. I haven't seen a write up on it. Maybe a stupid question but hey, I ain't the sharpest knife in the drawer.
hank1 is offline   Quote
Old 11-13-2008, 05:31 PM   #2
slf41002's Avatar
Join Date: Feb 2008
Location: Augusta,KY
Posts: 1,163
slf41002 is on a distinguished road
Yes you can unhook the heater hoses the other being at the water pump and flush the core with a garden hose.I would also check into a water pump since the coolant was rusty you have had some kind of metalic brake down to cause very much rust.A small amount maybe but very much at all and I would say you will find once removed that the water pump impeller will be almost gone.

I like for it to shine even thought it is muddy most of the time!
slf41002 is offline   Quote
Old 11-13-2008, 05:35 PM   #3
Giancarlo's Avatar
Join Date: Jul 2006
Posts: 697
Giancarlo is on a distinguished road
Send a message via AIM to Giancarlo
check ur heater core.. make sure its not leaking at all
1997 TJ, 6cyl, 4' Skyjacker, Custom Bumpers Front and Rear , Rocker Rails, Magna Flow Muffler, Light Bar , Custom Intake, Optima Yellow Top ,33x12.5x15 Procomp X-Terrain, Alpine Type S Audio, 10' polk sub, Recaro Seats.

Giancarlo is offline   Quote

Thread Tools

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
check engine light came on and speedo stopped working @ the same time. eric TJ General Discussion Forum 14 10-14-2013 12:05 PM
2400 miles on new jk having trans problem NTJeep JK Tech Forum 4 01-14-2009 01:03 AM
Heater / Blower Problem 2000 Wrangler dougman1971 TJ Tech Forum 0 09-17-2008 07:56 AM
Help with Heater problem BPD119 TJ Tech Forum 4 06-10-2008 08:43 PM
weird heater switch problem fr87hn TJ Tech Forum 4 04-19-2007 12:36 AM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 03:28 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

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
« Back

Enter your email address:

Delivered by FeedBurner