RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Allison Transmission Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-16-2020, 07:41 PM   #1
Senior Member
 
Join Date: Aug 2019
Posts: 110
Operating temp?

What the normal operating temp for allison 3000. Have 19 discovery with cummins 360.
Have had a small drip from the transmission cooler under engine for couple months. Havent been close to freightliner shop. Will be in 2 weeks.
Very small drip but on way down to savannah i noticed tranny temp on dash at 185, highest it went. Is this too high.
And where is the dip stick to check the level
__________________

DonB2 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-16-2020, 08:03 PM   #2
Junior Member
 
Join Date: Nov 2019
Posts: 17
Normal temp is 185-195° when driving on level ground. Normal temp on grades can go as high as 220° for a short time and be ok.

There is a way to check the fluid level using the shifter. The link explains it pretty good

http://www.rvtechlibrary.com/transmi...fluidcheck.php
make sure the trans temp is over 160-165° before checking with the pad for it to read the level correctly.
__________________

cafeguy is offline   Reply With Quote
Old 01-17-2020, 09:10 PM   #3
Senior Member
 
Kxbronco's Avatar
 
Join Date: Jan 2016
Posts: 443
Hooked up a Scan Gauge II this spring to monitor trans temp among other things. On average, my trans temp runs about 90 - 100 degrees above the incoming air temp during the day. This is based on 1k miles in May between east TN and the Florida panhandle, 900 miles in July from east TN and Hilton Head Island and 4.5k miles between east TN and southern UT between late August and late Oct.
__________________
2005 Allegro Bay 34XB, W22 Chassis / 8.1L
2013 Honda Fit toad, Demco Dominator & base plate
RVi2 Brake System
Kxbronco is online now   Reply With Quote
Old 01-21-2020, 12:42 PM   #4
Senior Member
 
Join Date: Apr 2009
Posts: 509
If you have a water to oil cooler, the trans temp will generally follow the water temp. Cooler is OK. Max temps for the Allison is 250F in the sump and 300F to the cooler. A retarder model can go to 330F to the cooler intermittently while using the output retarder. It helps to know where your vehicle is reading the transmission fluid temp. Sump, to cooler, from cooler. If it's using the Allison reading on J1939 that's sump (inside the transmission) temp.
dbarton291 is offline   Reply With Quote
Old 01-24-2020, 02:43 PM   #5
Senior Member


 
Join Date: Sep 2016
Location: Sarasota, FL
Posts: 3,768
Quote:
Originally Posted by dbarton291 View Post
If you have a water to oil cooler, the trans temp will generally follow the water temp. Cooler is OK. Max temps for the Allison is 250F in the sump and 300F to the cooler. A retarder model can go to 330F to the cooler intermittently while using the output retarder. It helps to know where your vehicle is reading the transmission fluid temp. Sump, to cooler, from cooler. If it's using the Allison reading on J1939 that's sump (inside the transmission) temp.
That's how mine acts on flat ground. Even in the 6% grades it seems to be approx the same. I read the tranny temp from the only sensor I have access to on the outside of the tranny.
__________________
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
Bringing her back to her glory.
'08 Jeep GC Overland.
RKins is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
ISL 'normal' operating temp smlranger Cummins Engines 5 08-22-2013 04:29 PM
norcold operating on back up operating system Raybo RV Systems & Appliances 5 02-17-2013 10:06 PM
06 Cheetah C7 MH3000 Slow to reach operating temp pccolf Monaco Owner's Forum 5 06-16-2012 04:11 PM
V10 Engine operating temp. colemole Winnebago Industries Owner's Forum 4 08-15-2010 11:40 AM
86 chevy 454 operating temp chuck7 MH-General Discussions & Problems 5 09-24-2007 07:44 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:08 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×