Go Back   DodgeForum.com > Dodge SUVs > Dodge Durango > 1st Gen Durango
Sign in using an external account
Register Forgot Password?


1st Gen Durango 1998 - 2003 Durango's

What is the operating temp?

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 03-04-2012, 08:37 PM
RollerRed RollerRed is offline
Veteran
 
Join Date: Oct 2011
Vehicle: 98 Dakota
Location: Milton, Wa
Posts: 395
Default What is the operating temp?

I have searched for a bit now and have found a couple of different answers, everything from 165-210.
What is the best temp? I just flushed my system out and before I would never get above 180, and the fan seemed to always be going. Now it got above 210 for about 15 sec but sits just before the 210 mark. Mabey 200 but when I start driving about 15mph it falls way down to the 165 mark, then goes back up to 200ish when I am sitting at a stop light for more then a min.

Anyone?
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 03-04-2012, 09:03 PM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,119
Send a message via AIM to shrpshtr325
Default

sounds to me like you have a problem with your cooling system, likely some air in there.

the factory stat is a 190 F temperature, so 200-215 would be the 'normal' range(when the stat gets to 190 it allows the coolant to flow and it will then cool down closing the stat and the cycle will repeat until it stabilizes and you find a consistent temperature)

now if your temp gauge runs almost straight up that is perfectly acceptable for these trucks.

however your fluctuations seem extreme, your stat may be stuck open and your clutch could possibly be bad not allowing it to keep the temp down while stopped.
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #3  
Old 03-04-2012, 11:09 PM
RollerRed RollerRed is offline
Veteran
 
Join Date: Oct 2011
Vehicle: 98 Dakota
Location: Milton, Wa
Posts: 395
Default

I just had the fan clutch replaced a couple hundred miles ago. I am gonna try and pull the therm and see if it is stuck open or not. Might as well considering how cheap and easy it is. Dont you just pull the top hose and scrape it out?
Reply With Quote
  #4  
Old 03-05-2012, 01:13 PM
that_guy's Avatar
that_guy that_guy is offline
Champion
 
Join Date: Jan 2011
Vehicle: 99 Durango SLT FT4X4 5.2L Intense Blue
Location: Pittsburgh, PA or Columbia, SC
Posts: 3,097
Default

Here's where mine usually sits whether im moving or sitting. I replaced my fan clutch last summer also.

Click the image to open in full size.
__________________

-Intense Blue '99 Durango SLT 5.2L FT4X4
-Ivy Green '69 Plymouth Satellite 318
Quote:
Somewhere in Kenya, a village is missing its idiot.
Reply With Quote
  #5  
Old 03-05-2012, 01:37 PM
TurboStixx's Avatar
TurboStixx TurboStixx is offline
Captain
 
Join Date: Oct 2011
Vehicle: 1999 Dodge Durango SLT 5.2L V8
Location: Richmond, Virginia
Posts: 646
https://www.facebook.com/turbostixx Turbostixxx
Default

Mine sits in the exact same spot.

+1 shrp, I am thinking air or tstat

Quote:
Originally Posted by that_guy View Post
Here's where mine usually sits whether im moving or sitting. I replaced my fan clutch last summer also.
__________________
Quote:
Originally Posted by srch4me View Post
purrs like a cat with hickups if i remember correctly
Reply With Quote
  #6  
Old 03-05-2012, 01:39 PM
adukart adukart is offline
Record Breaker
 
Join Date: Jun 2011
Vehicle: 1998 Durango SLT 5.9L
Location: Bismarck, ND
Posts: 1,628
Default

Well when I did my thermostat we had to take off the fan and unbolt the bracket so the a/c and alternator could move forward. Other wise the part of the housing that bolts down wouldn't clear it to come out.
__________________
'98 durango 4x4 5.9l, 3.92 diff, 46re 4speed, nv242hd transfercase, home brew cai, sct tuned by hemifever, kegger mod, 2" t/s lift, custom homemade bumper, rockin goodyear duratracs. When talking about towing - There no replacement for displacement.
Reply With Quote
  #7  
Old 03-05-2012, 01:45 PM
TurboStixx's Avatar
TurboStixx TurboStixx is offline
Captain
 
Join Date: Oct 2011
Vehicle: 1999 Dodge Durango SLT 5.2L V8
Location: Richmond, Virginia
Posts: 646
https://www.facebook.com/turbostixx Turbostixxx
Default

Yeah my A/C and Alternator bracket had to come off to get it out. But I was doing the plenum gasket when I did mine, so it was the only logical thing to do.
__________________
Quote:
Originally Posted by srch4me View Post
purrs like a cat with hickups if i remember correctly
Reply With Quote
  #8  
Old 03-05-2012, 02:09 PM
RollerRed RollerRed is offline
Veteran
 
Join Date: Oct 2011
Vehicle: 98 Dakota
Location: Milton, Wa
Posts: 395
Default

Well if that is normal then I guess I am ok. It hasn't done it today. I think the system just needed to burp...
Reply With Quote
  #9  
Old 03-05-2012, 03:12 PM
Groggy Groggy is offline
Rookie
 
Join Date: Jan 2011
Vehicle: 2000 Dodge Stratus & Durango
Location: Las Cruces, NM
Posts: 95
Gary G Grogg
Default

I'm Curious about that correct operating temp as well. I am concerned that the
engine is not entering open loop operations... or is it closed, I can't remember.
It seams that the MPG's could be better, and feel like it was better when it was
running hotter...
Click the image to open in full size.
I have a 180 stat, and think sometimes that it should be closing down and
warming things up. When I bought the D it had a stuck closed 195... since I
replaced it with the 180, I really don't have a point of reference...
__________________

2000 Durango SLT 4WD with 5.9L (360)
Home Brew Spectra CAI, 180 Degree Thermostat, 2.5" Flowmaster Super 40 Delta V, Superchips 3715
Reply With Quote
  #10  
Old 03-05-2012, 04:34 PM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,119
Send a message via AIM to shrpshtr325
Default

mine runs just (litteraly JUST, not even far enough for most people to notice) left of dead center (01+ dont have number son the gauge) so yours is running on the cold side , but thats bc of the 180* stat, this change is done by most people in order to improve performance slightly, this is done bc the engine runs colder as im sure you have noticed.
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #11  
Old 03-05-2012, 05:22 PM
RollerRed RollerRed is offline
Veteran
 
Join Date: Oct 2011
Vehicle: 98 Dakota
Location: Milton, Wa
Posts: 395
Default

so wait...is it better to run at 190 or 165 like the pics above?
Reply With Quote
  #12  
Old 03-05-2012, 05:35 PM
adukart adukart is offline
Record Breaker
 
Join Date: Jun 2011
Vehicle: 1998 Durango SLT 5.9L
Location: Bismarck, ND
Posts: 1,628
Default

190 is more heat and possibly better mileage. A 180 for towing and power, 165's are usually only used in race cars. At least in my experience.
__________________
'98 durango 4x4 5.9l, 3.92 diff, 46re 4speed, nv242hd transfercase, home brew cai, sct tuned by hemifever, kegger mod, 2" t/s lift, custom homemade bumper, rockin goodyear duratracs. When talking about towing - There no replacement for displacement.
Reply With Quote
  #13  
Old 03-05-2012, 09:22 PM
Groggy Groggy is offline
Rookie
 
Join Date: Jan 2011
Vehicle: 2000 Dodge Stratus & Durango
Location: Las Cruces, NM
Posts: 95
Gary G Grogg
Default

So here's my question.
At what temperature does the ecu switch between open and closed loop operation?
Reply With Quote
  #14  
Old 03-05-2012, 10:53 PM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,119
Send a message via AIM to shrpshtr325
Default

180 or 190 stat in a street vehicle

NEVER run a 165 on the street, that is a race only stat temperature.

i have never seen a record of the 'toggle' temperature, however a 180 SHOULD get you above it, if in doubt stick a 190 in and see what happens.
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #15  
Old 03-05-2012, 10:57 PM
hydrashocker's Avatar
hydrashocker hydrashocker is offline
Hall Of Fame
 
Join Date: Jun 2005
Vehicle: 99' Ram 2500 V-10 Sport QC 4X4
Location: GJ, Colorado
Posts: 14,214
Default

It's done on the O2 sensors. See they have heaters in them that is why they have 4 wires each.

That is where my Durango ran for the most part.

You get more power and less ware at 180 then you get at 195 which is OEM. The only reason they went to 195 was because or emissions and comfort, not for running better. This is why a 180 is good for towing. It keeps the heat down which intern creates a better HP and torque, thus more power!

Ya know my Durango always ran cold, but I didn't care because it helped keep my motor in better shape. What is a problem is the fact you are getting hot. I would replace it and also replace the T-stat housing. You can get it at the dealer for cheap. A 180 is the best for that motor anyway.
__________________

Moto: I don't take sides --- #1 - V10 Club - Club Member

AKA....The Durango Section Godfather
Reply With Quote
  #16  
Old 03-06-2012, 01:33 PM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,119
Send a message via AIM to shrpshtr325
Default

Click the image to open in full size.

this is where mine sits with the factory stat in there.
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #17  
Old 03-06-2012, 02:51 PM
Kensai's Avatar
Kensai Kensai is offline
Champion
 
Join Date: Dec 2003
Vehicle: 2000 Black Durango R/T
Location: Dallas, Tx
Posts: 2,571
tommy chau tommychau00
Default

Your Durango factory operating temperature is 195 degrees. For the modders, we like to have our trucks run a little cooler to prevent heads from cracking after many years of use at 180 degrees. If you modify your temp to run less than 180, you might not pass inspection and your PCM may throw a P1281 code that says taking too long to warm up to operating temperature.

The factory has designed a fail safe limit on the PCM to put your engine in limp mode when temperature approaches 210 degrees to prevent you from blowing the engine. You will experience crappy mileage and loss of power.

Normally by the time you creep up to 210, the electric cooling fan would be switched on to assist the clutch fan.
__________________
Black 2000 Durango 5.9 R/T, Infinity Reference 6012i, Clear Headlight lens,
Fastman 52mm ThrottleBody,Fastman custom built Tranny,Castrol Full Syntec,
OEM K&N Air filter,Monroe Reflexes,BFG LongTrail Touring T/A's,180 Stat,
F1 Airgap Intake,Champion IR Truck Plugs,Custom Made Ram Air Intake, Hughes SCT Tuner

Last edited by Kensai; 03-06-2012 at 02:55 PM..
Reply With Quote
  #18  
Old 03-06-2012, 03:28 PM
that_guy's Avatar
that_guy that_guy is offline
Champion
 
Join Date: Jan 2011
Vehicle: 99 Durango SLT FT4X4 5.2L Intense Blue
Location: Pittsburgh, PA or Columbia, SC
Posts: 3,097
Default

Quote:
Originally Posted by Kensai View Post
Normally by the time you creep up to 210, the electric cooling fan would be switched on to assist the clutch fan.
that wouldn't apply to the op since his truck is a 98 and the electric fan wasn't added until 2000, but +1 not going under a 180 t-stat
__________________

-Intense Blue '99 Durango SLT 5.2L FT4X4
-Ivy Green '69 Plymouth Satellite 318
Quote:
Somewhere in Kenya, a village is missing its idiot.
Reply With Quote
  #19  
Old 03-06-2012, 05:01 PM
adukart adukart is offline
Record Breaker
 
Join Date: Jun 2011
Vehicle: 1998 Durango SLT 5.9L
Location: Bismarck, ND
Posts: 1,628
Default

Mine hit 240 one day and the pcm went to a higher idle, thats all. No limp mode or nothing.
__________________
'98 durango 4x4 5.9l, 3.92 diff, 46re 4speed, nv242hd transfercase, home brew cai, sct tuned by hemifever, kegger mod, 2" t/s lift, custom homemade bumper, rockin goodyear duratracs. When talking about towing - There no replacement for displacement.
Reply With Quote
  #20  
Old 03-07-2012, 12:02 AM
Kensai's Avatar
Kensai Kensai is offline
Champion
 
Join Date: Dec 2003
Vehicle: 2000 Black Durango R/T
Location: Dallas, Tx
Posts: 2,571
tommy chau tommychau00
Default

Quote:
Originally Posted by adukart View Post
Mine hit 240 one day and the pcm went to a higher idle, thats all. No limp mode or nothing.
This safety feature may not have been offered for your 98 and possibly the 99 model. I also suspect it may not be offered if your truck did not come with the OEM electric fan. On my 2000 model and I would suspect the same for the 01-03, the limp mode feature is there.

After my truck was holding at 210F, I can definitely tell, no power at all. Felt like I was pulling a trailer. My MPG fell down to 8-9 mpg. After replacing the faulty fan clutch, this issue never came back as my truck never reached the 210F mark.
__________________
Black 2000 Durango 5.9 R/T, Infinity Reference 6012i, Clear Headlight lens,
Fastman 52mm ThrottleBody,Fastman custom built Tranny,Castrol Full Syntec,
OEM K&N Air filter,Monroe Reflexes,BFG LongTrail Touring T/A's,180 Stat,
F1 Airgap Intake,Champion IR Truck Plugs,Custom Made Ram Air Intake, Hughes SCT Tuner
Reply With Quote
Old 03-07-2012, 12:02 AM
 
 
 
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 12:05 PM.

Internet Brands, Inc.


Contact Details & Emails