Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Country Coach Owners 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 09-21-2013, 11:49 PM   #1
Member
 
HavasuRed's Avatar
 
Country Coach Owners Club
Join Date: Jul 2013
Location: Lake Havasu, Arizona
Posts: 41
Allison Heat Issue

I have a 2005 Allure with a Cat C9 hooked up to a Allison 6 speed. Everything works well and engine temps are good. Problem that I have just discovered is that the trans temp gauge climbs very high when I am stopped and in gear. As soon as I move, it starts to come down. If I take it out of gear when I am at a stop, it will not overheat. If I come into a traffic jam where I have to go slow, it climbs, and of course, if the traffic is moving, I can't take it out of gear so it climbs and I sweat hoping the traffic will start moving and the temp will go down. Anyone have an idea as to what is going on?
__________________

__________________
2005 Country Coach Allure 430 Alder Lake
400HP C9 Cat
Toad: 2014 Jeep Wrangler
HavasuRed 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 09-22-2013, 12:01 AM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
Allison says 5mins MAX for idle in gear to prevent over heating.
Also , for driving in slow traffic to select the highest gear you expect to achieve for the speed , 3rd for 30 , 4th for 40 to stop excessive shifting and the higher RPM keeps the fluid moving and cooling faster.
If traffic is crawling use first.
From my manual , trans fluid is considered overheated when the sump temp exceeds 250 , I believe this is an ATF temp , transynd is higher . Your coach should have Transynd. I've seen the temp spec, here in the forums I'll see if I can find it.
Looks like Transynd gives another 30 degrees over regular ATF.
But my old manual lists an Trans ECU , shift inhibit feature at 262.
If you don't have a complete operators manual for your trans , they are a free download from the Allison web page.
http://www.allisontransmission.com

Also on the page under " Related Benefits " download " Allison Electronic Controls Package" pdf file , for all the info on codes and retrieving them for WTEC III and IV systems.
__________________

__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-22-2013, 12:29 PM   #3
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 4,477
What do you consider "very high"? Mine runs right at 195 and will climb when in slow traffic. I have never seen it over 220.

What you are experiencing is normal from what I have read here and on other forums
__________________
dons2346 is offline   Reply With Quote
Old 09-22-2013, 12:57 PM   #4
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,393
Quote:
Originally Posted by HavasuRed View Post
I have a 2005 Allure with a Cat C9 hooked up to a Allison 6 speed. Everything works well and engine temps are good. Problem that I have just discovered is that the trans temp gauge climbs very high when I am stopped and in gear. As soon as I move, it starts to come down. If I take it out of gear when I am at a stop, it will not overheat. If I come into a traffic jam where I have to go slow, it climbs, and of course, if the traffic is moving, I can't take it out of gear so it climbs and I sweat hoping the traffic will start moving and the temp will go down. Anyone have an idea as to what is going on?
When the torque converter is unlocked in 1st or 2nd gear the temp will rise as the torque converter slippage will cause the fluid to heat. If stopped in traffic shift to neutral. If stuck in very slow traffic try to lag back and then get enough speed to get the transmission to lock up. It should lock toward to top of 2nd gear. Then it will stay locked to a lower speed if you don't apply too much throttle.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is online now   Reply With Quote
Old 09-22-2013, 01:37 PM   #5
Member
 
HavasuRed's Avatar
 
Country Coach Owners Club
Join Date: Jul 2013
Location: Lake Havasu, Arizona
Posts: 41
Thanks for the input. I haven't had this coach for very long so i don't have too much of a track record, only about 2500 miles. It has fairly new transynd. The trans runs at between 210 and 230 pretty regularly even when climbing hills. I have not thought that to be too much of an issue since that is only a little past the mid range point on the gauge. The rig has a brand new radiator, so engine temps don't vary much from mid-range on gauge. I have never seen how high the trans will get if I leave it in gear at a stop, but when I get off of the highway after traveling and the engine and trans are pretty heat soaked from travel, the trans temp starts to climb up beyond 240 real fast until I put it in neutral. It kinda sounds like this behavior might be fairly normal and mine seems to be a bit more sensitive than most. Which is too be expected because so far everything on this coach is more sensitive than most!!!
__________________
2005 Country Coach Allure 430 Alder Lake
400HP C9 Cat
Toad: 2014 Jeep Wrangler
HavasuRed is offline   Reply With Quote
Old 09-22-2013, 03:55 PM   #6
Moderator Emeritus
 
smlranger's Avatar


 
Country Coach Owners Club
Freightliner Owners Club
Join Date: Sep 2004
Location: Glen Allen, VA
Posts: 7,261
Blog Entries: 1
Perhaps I have not been paying close attention to it, but my tranny temps (per the Silverleaf display) have never approached 200F. I believe on our most recent trip, the most was 185. However, we've not pulled any real tough grades yet or been stuck in traffic with coach idling in gear.
__________________
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.
smlranger is offline   Reply With Quote
Old 09-22-2013, 04:58 PM   #7
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,393
Quote:
Originally Posted by smlranger View Post
Perhaps I have not been paying close attention to it, but my tranny temps (per the Silverleaf display) have never approached 200F. I believe on our most recent trip, the most was 185. However, we've not pulled any real tough grades yet or been stuck in traffic with coach idling in gear.
Typically idling in gear will heat it up the most. Pulling a long grade with heat up the engine coolant and that heats up the transmission fluid some because most transmission coolers are internal to the radiator.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is online now   Reply With Quote
Old 09-22-2013, 06:02 PM   #8
Senior Member
 
terry735001's Avatar
 
Join Date: Sep 2012
Posts: 1,158
Blog Entries: 11
The rig has a brand new radiator hummm

i am sure your transmission coolers is not in the radiator

i think the Cat C9 transmission coolers is like more out side off the radiator

if they installed a new radiator over trash in the system then your transmission cooler could have trash in the small holes in it but if the cat is not running hot then i think your ok


soon you well be a pro at this in no time soon
__________________
terry735001 is offline   Reply With Quote
Old 09-22-2013, 07:06 PM   #9
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
My coach has only an trans fluid to coolant , oil cooler, mounted in the lower rad hose, and attached to the frame rail, no oil to air cooler like a pick up , so the trans runs a little cooler than the engine because it gets the benefit of the coolant being through the rad before the engine does.
Probably not the perfect set up, but it seems to work just fine.

HavasuRed; I listed fluid temps for a sensor in the transmission sump, because that's where mine is. If by any chance your sensor is in the fluid line from the trans to the cooler, or your trans is equipped with a hydraulic retarder. The chart I have lists higher max temps allowed.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 09-22-2013, 08:57 PM   #10
Senior Member
 
dons2346's Avatar
 
Country Coach Owners Club
Join Date: Dec 2010
Posts: 4,477
The gauge and the sender unit can have 10% error each which could give temps in the range the OP states.

I am surprised that CC didn't install Silverleaf in the coach
__________________
dons2346 is offline   Reply With Quote
Old 09-22-2013, 09:25 PM   #11
Member
 
HavasuRed's Avatar
 
Country Coach Owners Club
Join Date: Jul 2013
Location: Lake Havasu, Arizona
Posts: 41
I really wished that it did have Silverleaf, but it doesn't, so I'm stuck with analog gauges.
__________________
2005 Country Coach Allure 430 Alder Lake
400HP C9 Cat
Toad: 2014 Jeep Wrangler
HavasuRed is offline   Reply With Quote
Old 09-22-2013, 09:30 PM   #12
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,398
Quote:
Originally Posted by Steve Ownby View Post
If stuck in very slow traffic try to lag back and then get enough speed to get the transmission to lock up.
Try leaving extra space, like 4 car lengths and you'll have 5 cars try and stuff themselves into it!
Really bad in the ice and snow! Leave a safe stopping distance and get continually cut off.
With TranSynd and good cooling you should never get an overheat. Today in 60 weather at 62 mph I saw 147 trans temp. However, in heavy traffic it does go somewhat higher, even so I have a hard time getting it hot enough to use the onboard level sensor.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 09-22-2013, 10:13 PM   #13
Senior Member
 
HicksRA's Avatar
 
Join Date: Mar 2013
Location: Fort Worth TX
Posts: 845
Have you checked your fluid level?
If it is overfilled, that can cause overheating.
__________________
2005 Newmar Dutch Star 4024
Pulling my 2012 Malibu w/Blue OX & Patriot brake unit
HicksRA is offline   Reply With Quote
Old 09-22-2013, 10:25 PM   #14
Member
 
HavasuRed's Avatar
 
Country Coach Owners Club
Join Date: Jul 2013
Location: Lake Havasu, Arizona
Posts: 41
I will check that, I recently had that wet PTO installed and they topped off the Transynd that was lost when they did the work.
__________________

__________________
2005 Country Coach Allure 430 Alder Lake
400HP C9 Cat
Toad: 2014 Jeep Wrangler
HavasuRed is offline   Reply With Quote
Reply

Tags
allison



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.