post #1 of Old 11-27-2005, 11:15 AM Thread Starter
Achped
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2005
Posts: 1,419
Radiator stop-leak in heater core?

Okay, I really, really, really need heat. It's not totally unbearable, but it sucks.

However, I don't want to pay $500~ for a shop to replace the heater core, and I definitely don't want to do it myself, interiors and me = no good. Besides, in 2 months it'll be in the 90s again, so it's really a useless endevour.

So I was thinking, is there any way I could use a radiator stop leak in my heater core? I've heard that stuff can mess up radiators, so I'd just put like 2 bottles into the upper heater core hose, let it chill there for a while, then fill it up with water, wait a few hours, then flush it all out and let it sit overnight and "dry" in hopes that it will fix the leak?

Yay, nay?

Achped is offline  
post #2 of Old 11-27-2005, 11:44 AM
doublins
Registered User
1998 TJ Wrangler 
 
Join Date: Jul 2004
Location: Crofton
Posts: 855
It is a safe bet that if you did that, yes it would fix the leak, however, I can assure you that you will have little or no heat, because your heater core will be so clogged with gunk that you will not get good coolant flow through it, and poor heat transfer.

-C

98 TJ Street Sleeper- 408ci Stroked Magnum V8

My Magnum V8 Build Thread:
http://www.jeepforum.com/forum/f22/m...rings-1516649/
doublins is offline  
post #3 of Old 11-27-2005, 11:59 AM Thread Starter
Achped
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2005
Posts: 1,419
Okay....

Leak + zero heat < No leak + little heat.

Thanks
Achped is offline  
post #4 of Old 11-27-2005, 01:11 PM Thread Starter
Achped
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2005
Posts: 1,419
Alright, I used the stop-leak, and it stopped the leak...

But heat is still a negative.

Now I noticed my coolant temp never reaches 210. Even with AC on, idling, in the Florida heat.

It stays at about 200-205. Even drove it around at 4000 rpms, didn't move. Also, my upper radiator hose never gets pressurized, and my heater core hoses aren't even getting warm (neither of them). They were "warm" before I did the stop-leak, but now they're almost cooler than the outside air.

What's going on
Achped is offline  
post #5 of Old 11-27-2005, 01:18 PM
FmrVette
Senior Member
 
FmrVette's Avatar
2008 XK Commander 
 
Join Date: May 2005
Location: Detroit Michigan
Posts: 992
Thermostat? Assume you've verified coolant level and mixture.

Jim

"Basically, I'm for anything that gets you through the night - be it prayer, tranquilizers or a bottle of Jack Daniels.” - Frank Sinatra

"When the last Blackhawk helicopter goes to the boneyard, it will be on a sling under a Huey." - Every Huey pilot that lived through it.

'95 YJ, '00 XJ, '06 TJ, (Current:) '08 XK
FmrVette is offline  
post #6 of Old 11-27-2005, 01:27 PM Thread Starter
Achped
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2005
Posts: 1,419
T-stat's supposed to be 195? If that's the case, it should be normal at that temperature right?

Edit: The upper radiator hose gets hot as crap, just not pressurized.

I'm assuming it's not normal to be able to drive 120 miles, go to a gas station, pop the hood, and still be able to squeeze your upper radiator hose?
Achped is offline  
post #7 of Old 11-27-2005, 02:23 PM Thread Starter
Achped
Registered User
1999 TJ Wrangler 
 
Join Date: Oct 2005
Posts: 1,419
Are my threads that boring, or do you people just not like me...it seems like every time i post or make a thread, it automatically dies.
Achped is offline  
post #8 of Old 11-27-2005, 02:42 PM
Blackbart
Registered User
 
Join Date: Nov 2005
Location: Minnesota
Posts: 150
I would check the thermostat, and then have it completly back-flushed. You can back flush it when your thermostat is out by hooking a hose up to the line going into the thermostat housing. This will get all of the crap out of the block and should get it out of the heater core as well. Otherwise, get a prestone back-flush kit, it makes it really easy to do. BTW, do you use coolant or just water in your system?
Blackbart is offline  
Reply


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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Pinhole leak in radiator--Alumaseal/Bar's Stop leak? JEEP97TJ TJ Wrangler Technical Forum 16 06-11-2010 06:01 PM
Stop leak for heater core leak?? alaksaboy YJ Wrangler Technical Forum 16 12-23-2009 11:59 AM
Thanksgiving: Heater core, radiator, etc...? greaneyk TJ Wrangler Technical Forum 1 11-16-2009 12:16 PM
Does radiator stop leak clog the heater core? durangoyj YJ Wrangler Technical Forum 4 11-13-2007 10:02 PM
New Radiator but noise from the heater core? jebdrup TJ Wrangler Technical Forum 1 12-30-2004 06:15 PM

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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome