Do TJ's usally operate at 210F? - Page 4 - 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 07-08-2013, 04:38 PM   #91
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,017
Quote:
Originally Posted by Neil F. View Post
And I don't believe my dash gauge. On my Scangauge it normally runs 197 and does climb up on the highway to 215 in hot weather. The dash needle has usually looked fairly close to the Scangauge but this weekend I was really pushing it do 80 in really hot weather up hills and the Scangauge showed 227 at it's hottest and that needle stayed at a hair over the 210 mark.
I've been saying this for a while. Any temperature from 210-230 has the needle sitting between the 1 and the 0 in 210.

OhSixTJ is offline   Quote Quick Reply
Old 07-19-2013, 06:39 PM   #92
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
See my update on my thread "TJ runs warm." I've finally got it running like it used to - which is to say south of 210, even with outside temps in the mid-90s, dew points in the mid-70s, and the A/C on full blast. For the full explanation, complete with hypothesis (which I desire everyone to challenge) and photo, please go to the other thread.

__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-19-2013, 06:40 PM   #93
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
I've found the problem. The TJ is back to its old self! For full explanation please see my update on my thread "TJ running warm."
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-19-2013, 06:43 PM   #94
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,017
Quote:
Originally Posted by GreenTJ4JC View Post
I've found the problem. The TJ is back to its old self! For full explanation please see my update on my thread "TJ running warm."
How about you post the link here?
OhSixTJ is offline   Quote Quick Reply
Old 07-19-2013, 06:44 PM   #95
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
I can't tell if this posted up or not. If it did, sorry for the duplicity -
Anyhow, I finally got the TJ running like its old self. Please see my full update in my thread "TJ Running Warm."
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-19-2013, 06:45 PM   #96
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
Quote:
Originally Posted by OhSixTJ View Post
How about you post the link here?
show me how, obie-whan kenobe! That'd be the better way, to be sure!

Hey, maybe I got it!

http://www.wranglerforum.com/f5/tj-r...rm-239881.html
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-19-2013, 07:33 PM   #97
TJZ
Jeeper
 
TJZ's Avatar
 
Join Date: May 2013
Location: Az.
Posts: 1,102
My TJ lives at 210. Never goes above that and it's 110 degrees out now. It was 118 a couple weeks ago and it never went above 210. Oh, I'm in AZ. Or Hell as we like to call it.
TJZ is offline   Quote Quick Reply
Old 07-20-2013, 10:11 AM   #98
Jeeper
 
KBR97's Avatar
 
Join Date: May 2008
Posts: 4,979
My gauge always reads right around 200.
KBR97 is offline   Quote Quick Reply
Old 07-20-2013, 10:43 AM   #99
Jeeper
 
UnlimitedLJ04's Avatar
 
Join Date: Aug 2010
Posts: 6,884
Quote:
Originally Posted by OhSixTJ View Post
I've been saying this for a while. Any temperature from 210-230 has the needle sitting between the 1 and the 0 in 210.
x2...
my experience has been the dash gauge shows "about 210°", but the actual real time temps via the Scangauge may be anywhere between 185-235°. That's a 50° temp variance you can't see on the dash. After the temps climb to ~240°, the dash guage starts moving but by that time the motor is overheating out of control and the gauge quickly pegs over at 260°F. By the time it's too late to do anything about it.
UnlimitedLJ04 is offline   Quote Quick Reply
Old 07-20-2013, 11:50 AM   #100
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
Quote:
Originally Posted by UnlimitedLJ04 View Post
x2...
my experience has been the dash gauge shows "about 210°", but the actual real time temps via the Scangauge may be anywhere between 185-235°. That's a 50° temp variance you can't see on the dash. After the temps climb to ~240°, the dash guage starts moving but by that time the motor is overheating out of control and the gauge quickly pegs over at 260°F. By the time it's too late to do anything about it.
Based on my recent experience, you may wanna take a peek in the top of your radiator core. If you see the "sandpaper" corrosion I had in mine, might be worth while to swap out radiators and see if anything changes. Just a thought...
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-20-2013, 12:37 PM   #101
Jeeper
 
UnlimitedLJ04's Avatar
 
Join Date: Aug 2010
Posts: 6,884
Quote:
Originally Posted by GreenTJ4JC View Post
Based on my recent experience, you may wanna take a peek in the top of your radiator core. If you see the "sandpaper" corrosion I had in mine, might be worth while to swap out radiators and see if anything changes. Just a thought...
I just replaced the water pump, radiator, fan clutch and hoses. Thermostat, cap and thermo housing have all been replaced previously. There was no corrosion, no clogs, great flow and actually nothing needed replaced....100k miles on the clock. Overheating issues had been present since basically new (when running A/C only), and the dealership couldn't figure it out.

I only run the A/C intermittently and watch the temps from the Scangauge to keep things in check. As long as I watch things while using the A/C, I don't come anywhere close to overheating.
UnlimitedLJ04 is offline   Quote Quick Reply
Old 07-20-2013, 05:43 PM   #102
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
Quote:
Originally Posted by UnlimitedLJ04 View Post
I just replaced the water pump, radiator, fan clutch and hoses. Thermostat, cap and thermo housing have all been replaced previously. There was no corrosion, no clogs, great flow and actually nothing needed replaced....100k miles on the clock. Overheating issues had been present since basically new (when running A/C only), and the dealership couldn't figure it out.

I only run the A/C intermittently and watch the temps from the Scangauge to keep things in check. As long as I watch things while using the A/C, I don't come anywhere close to overheating.
You've certainly done it all. wow! Hey, do you have a link to the scangauage? Does it just plug into the plug at the bottom of the dash?
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-20-2013, 07:13 PM   #103
Jeeper
 
Join Date: Jun 2013
Posts: 219
Wow, this one is still going. For one thing the coolant along increses boiling point. Now I don't remember the formula-but- for every pound of pressure (rad cap) The water/coolant obtains an even HIGHER boiling point. The water at 240f is still not boiling. Someone look in a psyhics book for me. Maybe we can help others feel OK about higher temps. FWIW many factory cars have or did have 210 thermostats.So just because water in a pot boils at 212f-your radiator is not. (Maybe if you ran straight water and no radiator cap). Never tried it-no point. My 98 4.0L runs at or above 210f when hot and A/C on at times. No big deal.
kawzak is offline   Quote Quick Reply
Old 07-20-2013, 08:24 PM   #104
Jeeper
 
capsfan2013's Avatar
 
Join Date: Mar 2012
Location: Maryland
Posts: 51
210 is absolutely normal. It is 95 degrees here in Maryland and 105 with heat index and might run a fraction over 210 for a few minutes if pushing the engine hard, otherwise, 210 is absolutely normal. Not to worry!

Had a 94 Grand Cherokee that overheated and destroyed my transmission, 2000 dollars later and had that replaced. In general, just keep an eye on your temp gauge, but you should be fine. You are right where you are supposed to be.
__________________
Keep Calm and Jeep On

Victor
capsfan2013 is offline   Quote Quick Reply
Old 07-26-2013, 01:18 PM   #105
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
I wound up with two new radiators. One's in the TJ. The other's posted on the 'for sale' thread.
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-26-2013, 04:17 PM   #106
Jeeper
 
Join Date: Mar 2011
Posts: 418
I cringe when people say they destroyed a vehicle by overheating. There are so many clues. The temperature gauge, the way it smells, the steam, etc.

When an engine overheats, don't keep driving. Pull over as soon as you can, and fix it. Meaning: stop the leak, tape the busted hose,refill with coolant - or plain water in a pinch - and DO NOT let the engine overheat. You will blow a gasket or hose at least, you might crack a block or do other serious damage.

If you cannot fix it, have it towed. Just don't drive it.
__________________
Gary
1967 Kaiser Commando
2001 Grand Cherokee WJ
2003 Rubicon TJ
KaiserJeep is offline   Quote Quick Reply
Old 07-26-2013, 05:20 PM   #107
Jeeper
 
1979WagoneerLTD's Avatar
 
Join Date: Nov 2008
Location: GA
Posts: 376
Quote:
Originally Posted by KaiserJeep View Post
I cringe when people say they destroyed a vehicle by overheating. There are so many clues. The temperature gauge, the way it smells, the steam, etc.

When an engine overheats, don't keep driving. Pull over as soon as you can, and fix it. Meaning: stop the leak, tape the busted hose,refill with coolant - or plain water in a pinch - and DO NOT let the engine overheat. You will blow a gasket or hose at least, you might crack a block or do other serious damage.

If you cannot fix it, have it towed. Just don't drive it.
This is an anxiety that had concerned many a TJ'er. While there has been documented issued with cracking cylinder heads et al, chances are you're fine per some of the previous posts. If in doubt, use an infrared thermometer to verify, even beyond the coolant temp sensor feedback to the PCM, that you're temp is not spiking. If you want to be totally sure, buy a coolant test kit from Strap on (or Marco /Mac) and verify you have combustion has present on the coolant.
__________________
THE MPGp
1979WagoneerLTD is offline   Quote Quick Reply
Old 07-26-2013, 05:21 PM   #108
Jeeper
 
1979WagoneerLTD's Avatar
 
Join Date: Nov 2008
Location: GA
Posts: 376
iPhone typos, gas, has, etc.
__________________
THE MPGp
1979WagoneerLTD is offline   Quote Quick Reply
Old 07-27-2013, 12:23 AM   #109
Jeeper
 
SurfKaster's Avatar
 
Join Date: Mar 2010
Location: St. Augustine FL
Posts: 1,191
210 TJ Ok
SurfKaster is offline   Quote Quick Reply
Old 07-27-2013, 07:07 AM   #110
Jeeper
 
capsfan2013's Avatar
 
Join Date: Mar 2012
Location: Maryland
Posts: 51
Quote:
Originally Posted by KaiserJeep View Post
I cringe when people say they destroyed a vehicle by overheating. There are so many clues. The temperature gauge, the way it smells, the steam, etc.

When an engine overheats, don't keep driving. Pull over as soon as you can, and fix it. Meaning: stop the leak, tape the busted hose,refill with coolant - or plain water in a pinch - and DO NOT let the engine overheat. You will blow a gasket or hose at least, you might crack a block or do other serious damage.

If you cannot fix it, have it towed. Just don't drive it.
Did not mean for it to happen obviously. I had no signs. The tranny was bad and I did not even know it at the time. I was driving down to VA Beach and the transmission went out. Saw the white smoke and it happened.

Trust me. I now know what the signs are. And you are definitely right, it is a crime to see it happen. I miss my 5.2L V8 Grand Cherokee.
__________________
Keep Calm and Jeep On

Victor
capsfan2013 is offline   Quote Quick Reply
Old 07-27-2013, 07:09 AM   #111
Jeeper
 
capsfan2013's Avatar
 
Join Date: Mar 2012
Location: Maryland
Posts: 51
Quote:
Originally Posted by GreenTJ4JC View Post
I wound up with two new radiators. One's in the TJ. The other's posted on the 'for sale' thread.
I read your entire thread yesterday! That is damn impressive you figured it out how you did. Congrats man. Job well done. The two radiator thing is kinda hilarious, but now you have one to sell for sure!
__________________
Keep Calm and Jeep On

Victor
capsfan2013 is offline   Quote Quick Reply
Old 07-27-2013, 04:04 PM   #112
Supporting Member

WF Supporting Member
 
Join Date: Dec 2011
Location: Under my Jeep in beautiful upstate N.Y.
Posts: 2,689
Quote:
Originally Posted by capsfan2013 View Post
I read your entire thread yesterday! That is damn impressive you figured it out how you did. Congrats man. Job well done. The two radiator thing is kinda hilarious, but now you have one to sell for sure!
Id keep it,it is a Jeep
1jeeplvr is offline   Quote Quick Reply
Old 07-27-2013, 04:09 PM   #113
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,174
Images: 2
Quote:
Originally Posted by 1jeeplvr View Post
Id keep it,it is a Jeep
In the five Jeeps I have owned since 1988, I have replaced a total of one radiator. Several of those Jeeps had high mileages, one had 192k miles on it. Properly cared for, the OE radiator will last longer than most people keep their Jeeps.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 07-28-2013, 07:04 AM   #114
Jeeper
 
GreenTJ4JC's Avatar
 
Join Date: May 2013
Location: Des Moines
Posts: 34
Quote:
Originally Posted by 1jeeplvr View Post
Id keep it,it is a Jeep
Like Bransford says, if this thing had been properly maintained I'm sure the first one would never have gone bad. I'm just pleased that I pressed on to find the 'root cause' rather than accepting that warm is OK as long as it's not in the red. Eventually it probably would've gotten to that point.
__________________
2004 TJ, lifted, skidded, winched, ECTED on 32s. DD with a weekend attitude!
GreenTJ4JC is offline   Quote Quick Reply
Old 07-29-2013, 12:03 AM   #115
Jeeper
 
Join Date: Aug 2012
Location: City of New York
Posts: 150
Quote:
Originally Posted by Jerry Bransford View Post
X3 on 210 being where your engine should be operating at, keep the factory specified 195 degree thermostat in place. And the same goes with staying with 87 octane as your engine was designed for. Not only is a higher octane a waste of $$$, a higher octane can actually make your engine run worse. The higher the octane, the harder it is to ignite, the slower it burns, and the more likely it is likely to leave deposits behind since a high octane fuel is harder/slower to ignite when compared to 87 octane.
It's the oposite. High octane burns hot and fast and leaves less deposits. High octane in yard equipment burns hot enough to melt small aluminum pistons. It's the higher alcohol content. High octane does not store as long as regular before separating and turning to "varnish", and breaks down 2-stroke oil. So don't use it in your chainsaws and weed eaters.
__________________
1998 Wrangler Sport 4.0L 6cyl Automatic.
Kewrock is offline   Quote Quick Reply
Old 07-29-2013, 01:18 AM   #116
Jeeper
 
Majnoon's Avatar
 
Join Date: Apr 2013
Location: Springfield Missouri
Posts: 2,243
Quote:
Originally Posted by Kewrock View Post

It's the oposite. High octane burns hot and fast and leaves less deposits. High octane in yard equipment burns hot enough to melt small aluminum pistons. It's the higher alcohol content. High octane does not store as long as regular before separating and turning to "varnish", and breaks down 2-stroke oil. So don't use it in your chainsaws and weed eaters.
It's not the opposite. It's what Jerry said. High octane burns slower. Which is why it is used in high compression engines. You really think a more explosive gas would REDUCE pinging I'm a high compression engine that calls for high octane? I used to buy that crap when I was young and dumb for my Jeep. We only run it in the hemi ram that calls for it. Use the cheap high explosive stuff in my 4.0.
Majnoon is offline   Quote Quick Reply
Old 07-29-2013, 01:20 AM   #117
I like Jeeps...

WF Supporting Member
 
jeepwayoflife's Avatar
 
Join Date: Nov 2011
Location: California
Posts: 2,736
Quote:
Originally Posted by Kewrock View Post
It's the oposite. High octane burns hot and fast and leaves less deposits. High octane in yard equipment burns hot enough to melt small aluminum pistons. It's the higher alcohol content. High octane does not store as long as regular before separating and turning to "varnish", and breaks down 2-stroke oil. So don't use it in your chainsaws and weed eaters.
I don't know about burning "hot and fast", but I do know higher octane fuel is harder to ignite or withstands more pressure before combustion.

This article helps describe the roll heptane and octane play in gas: HowStuffWorks "What does octane mean?"

The higher the number, the more octane is in the gas and the more pressure the gas is able to withstand without combusting.


If your engine is unable to burn all the fuel because you are putting in gas that cannot be fully ignited with the compression your engine creates, it will leave behind deposits.

__________________
--------------------------------------------------------
Take it out and play with it
Drive it like you built it
jeepwayoflife is offline   Quote Quick Reply
Old 07-31-2013, 09:17 PM   #118
Jeeper
 
ninjaturtle0's Avatar
 
Join Date: Jul 2012
Location: Texas
Posts: 819
Recently my Jeep has been running slightly over 210 and today I punched hard on the highway to gain speed and my rpm was over 3k and I watched the temp go up and it almost hit that white dot that measures 3/4 mark before the red area. And when I shut my jeep off and walk to the front of the hood I can hear a hard boiling sound :/

Last summer my Jeep didnt do this. And I had someone tell me that's normal in tx... I had my coolant flushed about 9 months ago

Any suggestions?
__________________


/l ,[____],
l---L -OlllllllO-
()_) ()_)--o-)_)
ninjaturtle0 is offline   Quote Quick Reply
Old 07-31-2013, 09:24 PM   #119
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,174
Images: 2
Sounds like maybe the radiator cap is leaking pressure. Is it screwed all the way down? If it is and it's leaking pressure prematurely, replace it with a new cap with the correct 18 lb. pressure rating.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 07-31-2013, 10:30 PM   #120
Jeeper
 
ninjaturtle0's Avatar
 
Join Date: Jul 2012
Location: Texas
Posts: 819
Quote:
Originally Posted by Jerry Bransford View Post
Sounds like maybe the radiator cap is leaking pressure. Is it screwed all the way down? If it is and it's leaking pressure prematurely, replace it with a new cap with the correct 18 lb. pressure rating.
Thanks Jerry I will check it in the morning and maybe replace it

__________________


/l ,[____],
l---L -OlllllllO-
()_) ()_)--o-)_)
ninjaturtle0 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




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 03:59 AM.



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