What is a safe transmission temperature? - DodgeForum.com



4th Gen Ram Tech 2009+ and up Rams: This section is for TECHNICAL discussions only, that involve the 2009 and up Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

What is a safe transmission temperature?

Reply
 
 
  #1  
Old 05-30-2009, 09:32 PM
MOPWR2U
MOPWR2U is offline
Veteran
Thread Starter
 
Join Date: Mar 2009
Posts: 298
Default What is a safe transmission temperature?

Was towing a 3000 lb trailer up a nearby canyon today, and decided to monitor the auto transmission fluid temperature. It climbed steadily for the whole climb, reaching a peak of 208 degrees as I crested the summit. It was only 51 degrees outside, so I'm thinking the trans temp will be significantly higher later this summer when the outside temperatures are higher.

What is a safe transmission fluid temperature? What temperature are you seeing on your truck?

MOPWR2U
Reply With Quote
  #2  
Old 05-30-2009, 09:37 PM
Phil Des 09laramie
Phil Des 09laramie is offline
Rookie
 
Join Date: May 2009
Posts: 52
Default

Quote:
Originally Posted by MOPWR2U View Post
Was towing a 3000 lb trailer up a nearby canyon today, and decided to monitor the auto transmission fluid temperature. It climbed steadily for the whole climb, reaching a peak of 208 degrees as I crested the summit. It was only 51 degrees outside, so I'm thinking the trans temp will be significantly higher later this summer when the outside temperatures are higher.

What is a safe transmission fluid temperature? What temperature are you seeing on your truck?

MOPWR2U
I could not quote you a number but the system will tell you if the trans is getting too hot. there is a warning light specifically for that.
Reply With Quote
  #3  
Old 05-31-2009, 12:25 AM
72combo's Avatar
72combo
72combo is offline
Champion
 
Join Date: Dec 2007
Location: Ontario, Canada
Posts: 3,563
Default

Quote:
Originally Posted by Phil Des 09laramie View Post
I could not quote you a number but the system will tell you if the trans is getting too hot. there is a warning light specifically for that.
Are you sure it is not one of those things left out before Dec. 08, I am pissed my truck built in Oct. I can't figure why it sat so long....it is loaded with everything everyone else has just no cool radio.
Reply With Quote
  #4  
Old 05-31-2009, 12:37 AM
bigred3297's Avatar
bigred3297
bigred3297 is offline
Record Breaker
 
Join Date: Jan 2009
Location: Hawaii
Posts: 1,149
Default

Quote:
Originally Posted by 72combo View Post
Are you sure it is not one of those things left out before Dec. 08, I am pissed my truck built in Oct. I can't figure why it sat so long....it is loaded with everything everyone else has just no cool radio.

the "idiot lights", as they are referred to, are on all builds of the truck
Reply With Quote
  #5  
Old 05-31-2009, 06:21 AM
Phil Des 09laramie
Phil Des 09laramie is offline
Rookie
 
Join Date: May 2009
Posts: 52
Default

Before I bought the Ram I had a Dakota hauled a trailer loaded to the maximum of what the Dak could take which is around 7k lbs hauled up steep hills in the Laurentiens (100 mile trip) and never had the idiot light go off a trans cooler will go a long way in helping things stay under control
Reply With Quote
  #6  
Old 05-31-2009, 02:24 PM
SilverBullet08's Avatar
SilverBullet08
SilverBullet08 is offline
Grand Champion
 
Join Date: Dec 2008
Location: TX
Posts: 6,556
Default

i have a trans temp gauge in my truck. its usually around 150-175 under normal driving. in traffic and stop and go it gets around 200-210. also i read somewhere that the trans temp is 40 degrees higher than the outside temp on normal driving and 60 degrees when towing...
Reply With Quote
  #7  
Old 06-02-2009, 04:35 PM
frofro666
frofro666 is offline
Rookie
 
Join Date: Apr 2009
Posts: 52
Default

Mine reads about 120 Degree F without pulling trailer and during city drving.
Reply With Quote
  #8  
Old 06-03-2009, 02:53 PM
Sobomaster's Avatar
Sobomaster
Sobomaster is offline
Record Breaker
 
Join Date: Feb 2007
Location: Austin/Round Rock, TX
Posts: 1,564
Default

You should probably be fine until 225 or so (maybe more?). Don't take that as a solid or proven number, just from what I've seen past trucks hit when towing or cars under hard driving. I've never had the idiot light go off at those temps.
Reply With Quote
  #9  
Old 06-05-2009, 08:12 PM
Brummo's Avatar
Brummo
Brummo is offline
Captain
 
Join Date: Mar 2008
Location: Cedar Rapids, Ia
Posts: 603
Default

Pulling my boat 1200 miles, I never saw it over 155. My weather was cooler where I was at.
Reply With Quote
  #10  
Old 06-05-2009, 10:50 PM
sarguy01's Avatar
sarguy01
sarguy01 is offline
Record Breaker
 
Join Date: Feb 2009
Location: Virginia Beach
Posts: 1,661
Default

The transmission over temp is at 275*F.

From the service manual.

Trans Over-Temp Indicator Lamp-On Message
- Each time the cluster receives an electronic trans over-temp indicator lamp-ON message from the PCM indicating that the transmission fluid temperature is 135 C (275 F) or higher, the indicator will be illuminated and a single chime tone is sounded. The indicator remains illuminated until the cluster receives a lamp-OFF message from the PCM, or until the ignition switch is turned to the OFF position, whichever occurs first. The chime tone feature will only repeat during the same ignition cycle if the indicator is cycled OFF and then ON again by the appropriate lamp-ON and lamp-OFF messages from the PCM.
Reply With Quote
 
 
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Prismatic
3rd Gen Ram Tech
8
05-03-2016 02:28 PM
Alacoque
1st Gen Dakota
3
08-15-2015 02:26 PM
wilfrids
Dodge Caravan
4
07-26-2015 10:35 PM
SteveR
Dodge Ram Van
5
07-23-2015 09:05 PM
gibsilver20
2nd Gen Ram Tech
9
07-10-2015 11:03 AM


Thread Tools
Search this Thread

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


All times are GMT -4. The time now is 05:04 PM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send