Upper Radiator Hose? - JeepForum.com
LinkBack Thread Tools
post #1 of 5 Old 08-01-2011, 11:14 PM Thread Starter
Registered User
1995 YJ Wrangler 
Join Date: Jan 2011
Location: Highland Mills
Posts: 54
Upper Radiator Hose?

Just bought a 98 limited 5.2 with 175,000 miles. yes i know what your thinking, why would i buy a 5.2 with 175,000 miles. well, i only paid $650 and the body is almost mint, no leaks, no rust. tranny slips a little, but that's not a big deal right now. so here's my main concern. the upper radiator hose is completly flat at the top, whether the engine is running or not. the jeep does not overheat and runs like a champ. so for my question, is this normal? what would be the cause, how much pressure should flow through there? i'm going to pick up a new hose tomorrow. even though i don't think the hose is the problem. also i squeezed the hose while it was running and i dont feel any pressure in it. i dont think it's blocked because while it was running i had the rad cap off while i pinched the hose and the coolant overflowed from fill hole.


LostDogs87 is offline  
Sponsored Links
post #2 of 5 Old 08-02-2011, 05:51 AM
Registered User
1995 ZJ 
Join Date: Sep 2009
Location: Austin
Posts: 1,511
I am not sure how much pressure should be in the cooling system, but it is definitely not normal for the hose to be flat. When warmed up, the hose should feel firm, with a little bit flex. I would get that hose replaced, and probably the radiator cap too. Then check it again after you warm up the Jeep to make sure the system is pressurizing.

1995 ZJ 5.2L V8 318. 230,000 miles and still rollin.

List of parts not replaced yet:
sebian is offline  
post #3 of 5 Old 08-02-2011, 02:22 PM
Registered User
1996 ZJ 
Join Date: Apr 2011
Location: Carmel
Posts: 73
Also, when youve got the new rad cap and hose on, wait until the Jeep is at full operating temp, then the thermostat will have opened, everything should be flowing as it should. Then give the hose a squeeze.

Just done my top hose. Be sure to make sure it seals tightly, mine wasnt and i had some odd temp readings til i realised it was leaking slightly.
cappedup is offline  
post #4 of 5 Old 08-02-2011, 02:51 PM
Registered User
1996 ZJ 
Join Date: Sep 2009
Location: Charlotte
Posts: 2,890
As for the tranny just drop the pan and change the fluid and filter. Should help the slipping.
melk is offline  
post #5 of 5 Old 08-02-2011, 09:47 PM Thread Starter
Registered User
1995 YJ Wrangler 
Join Date: Jan 2011
Location: Highland Mills
Posts: 54
Problem fixed!!
It was the radiator cap, got the hose but haven't replaces it yet. feels way too soft so i think i'm gonna take it back and get a better one.
and as for the tranny i already changed the fluid and filter. probably should have adjusted the bands, but guess i'll them next time. it doesn't slip that bad just sometimes it take a few seconds too shift out of second. some days it doesn't slip at all.
anyway thank's alot guys!!
LostDogs87 is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Upper radiator hose rock hard....overheating bbrfast ZJ Grand Cherokee Forum 22 05-10-2015 04:18 PM
Upper Radiator Hose question rritch ZJ Grand Cherokee Forum 5 04-18-2011 02:08 PM
upper rad hose too hard james613 ZJ Grand Cherokee Forum 22 02-13-2010 06:14 PM
Cooland Spewing Out Of The Upper Radiator Hose egleas522 ZJ Grand Cherokee Forum 3 11-06-2009 05:42 AM
shouldn't upper radiator hose get hot? luckyjeep ZJ Grand Cherokee Forum 17 02-28-2008 09:16 AM

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