Transmission Temperatures

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Transmission Temperatures - MD3060/3066

August 22, 2019, 04:34:21 pm

Where Else beside Winnebago - Junction City can i get a Transmission Temperature Sensor & Analog Gage for my 2001 Intrigue #11219.. The Folks are JC are to busy to return my call.. Thanks Lee.. 2001 Intrigue #11219

Re: Transmission Temperature Sensor

Reply #1 – August 22, 2019, 06:31:20 pm

Yahoo Message Number: 118445

Try Kevin Waite, 541-953-6162.?? Junction City is usually responsive. I'm guessing they may be shorthanded or closed due to vacation and recovery from their national rally in late July.

Transmission Temperatures - MD3060/3066

Reply #2 – August 27, 2019, 05:45:54 pm

Yahoo Message Number: 118458

I'm curious what other similar Intrigue Coach's Transmission Temperature are operating at.
In the last 2-1/2 years the Transmission continuous operating temperature of my 2001 Intrigue #11219; 8.3 Liter, ISC Cummins 350 HP, has increased to being 10 to 15 degrees higher than the Engine coolant temperature at 205 to 215 degree F, (with Engine Coolant temperature at 195 deg. F.) and even the Trans. temp. went to 226 when climbing a steep grade on HWY 395 in California north of Bishop, CA. this summer. (With outside air temp. was 85 degree F). The high temperature situation appears to be getting worse.
The Transmission fluid temperature use to match the Engine Coolant Temp. of 195 to 201 degree F.
When the Transmission temperature rises to 208 F, (with outside air temperature being at 80 F& traveling on level road & NOT towing anything) I turn on the Coach's dash Air conditioner, which automatically turns on the 3 speed radiator coolant fan to the medium speed. Within a few miles the Engine Coolant Temperature will drop to 188 degree F, which indicates that the cooling fan is functioning properly. But it will take 30 to 40 miles for the transmission Fluid temperature to drop only 5 degrees to 203 F, and NO lower.
The only way to reduce the transmission fluid temperature is to stop the Coach & either run the engine at the 1,000 RPM idle condition OR shut off the engine for at least 30 minutes, then the transmission fluid temperature will lower to180 F, but once continuing to travel the transmission fluid temperature will quickly rise back to 205 to 208 with the coolant fan operating at medium speed....

A recent trip to an Allison Certified Technician resulted statements that my Transmission Operating temperature levels are within the normal range.
Lee Casebeer -2001 Intrigue #11219

Re: Transmission Temperatures - MD3060/3066

Reply #3 – August 27, 2019, 06:34:47 pm

Yahoo Message Number: 118459

All sounds very normal to me. I tow a stacker trailer (Monaco coach, same motor & transmission) weighing in just over 13k lbs. and my trans normally runs 10-30 degs warmer then the engine coolant temp depending on the ambient temp when traveling on flat ground. I've had the trans temp run up and over 300 degrees a couple times and when it does I drain it at my earliest convenience and replace with new as well as both filters. Owned the coach since 05' and it worried me at the beginning but now it is what it is... I've never stopped to let it cool down because when it happens I'm going uphill and I let it cool on the way down. My tranny shop is who put me on this program. Now when I'm driving in the rain, the temps stay nice and cold! The heat exchanger on your coach is obviously working proper because I've had to bypass one on a different coach once and made it 40-50 miles down the flat road and the temp was well over 300 which we did stop and got the exchanger repaired before continuing.

Jim Lewis
Infinity Coach

Re: Transmission Temperatures - MD3060/3066

Reply #4 – August 27, 2019, 07:06:41 pm

Yahoo Message Number: 118461

Lee, are these Silverleaf temperatures?

Jay. 05 Inspire 51457

Re: Transmission Temperatures - MD3060/3066

Reply #5 – August 27, 2019, 09:11:08 pm

Yahoo Message Number: 118465

How long since you had a fluid and filter change?
06 Magna 6622
Burning up in Phoenix AZ

Gary Glenn
Bright Idea RV LED Lights
325-665-4993

Re: Transmission Temperatures - MD3060/3066

Reply #6 – August 28, 2019, 07:49:55 pm

Yahoo Message Number: 118471

I don't see any concerns, unless I misread your temps...

We have an 04 Allure 40' with ISL and the the Allison. Transyn change to our tranny, and Final Charge (OAT based coolant to our Engine cooling).

Today we travel in mid 80's temps, on a 35-50 MPH, with moderate hills and curves, and traffic - from Newport, OR - to the Olympic Peninsula.

Engine temps (Silverleaf) stayed 184-189F. Trans, when I was not manually shifting for it (Which is our norm in traveling.), was 205-220 range.

TES295 Transyn 7-8 years ago, and the Allison filter changed two years ago.

Coolant changed to Peak Final Charge, after appropriate flushing and rinsing, also 7-8 years ago. (Yearly testing shows it is in good shape.)

I personally have never seen an exact correlation between engine and transmission coolant... Two different animals, doing two different types of cooling.

Both will respond to the specific situation they're in:

-Engine temps. Will change based upon outside temps, work the engine is doing. Condition of engine radiator. Fan working properly. And health of coolant. (The Driver, can make a big difference in Temp's, based upon anticipation and looking ahead, at what the engine will need to do. And downshifting accordingly.)

-Transmission temps. Well, even more so. Stop and go in town traffic. Or many 'hunting miles' of letting the ECM's of the Allison and Cummins/CAT determine shifting Up/Down - will influence temps. (More so, IMO, then Engine temps.

TES295 is very 'robust'... But, us humans can see either the hills ahead, and or the traffic pattern's - and respond way in advance to the 'reactive' responses of the brains/ECM's of the Engines/Allison. Shift down when you see a grade. When in stop & go traffic, also shift down, and lock the trans in the appropriate gear for the situation.

Driving for the rig, will help contain both Engine and Allison temps....

And of course, are all radiators clean externally?

Best to you, and all,
Smitty

Transmission Temperature in MD 3060/3066 Reply

Reply #7 – August 28, 2019, 10:55:46 am

Yahoo Message Number: 118467

Thanks to All for the Feed-Back on My Transmission Temperature Situation.
The Transynd Fluid & BOTH Filters were changed in November of 2018. I have BOTH Trans filters changed every 2 years no matter how few miles since last service.
All Temperature readings are from My Silverleaf Display, that gets its data from the Engine Control Module...
I talked to a Northwest Regional Allison Service Manager & he had no answers for me, except that the Transmission Temperature should match the Engine Coolant Temperatures.

Lee Casebeer 2001 Intrigue #11219 with 181K miles

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #8 – August 29, 2019, 09:58:55 am

Yahoo Message Number: 118472

I too have an overheating issue with my Allison MH3000 Trans. Having to remove my side radiator TWICE, while attempting to stop a nagging coolant leak, I noticed that the trans coolant chamber (on the front side of the radiator) is setup to take the Transynd and fill the coolant tank from the bottom, which is opposite of the engine coolant flow. I did confirm this setup with an Allison technician from their support department, but in spite of this, it is counter-intuitive to me that this is the correct fluid flow. He said that the trans fluid should flow in the opposite direction of the engine coolant. My feeling is that this is the reason these trans' run so hot. Also, I am thinking that possibly the hydraulic cooling fan Sauer-Danfoss controls do not consider trans temp when determining cooling requirements. Don't know this for certain, but it certainly seems that way. I am seriously thinking about swapping the hydraulic cooler setup with the trans cooler in order to reduce the amount of stress on the trans pump not having to pump the Transynd "uphill" OR adding an additional trans cooler to the existing cooler function. Operating manual states that idling in drive for more than "5 minutes may lead to overheating"

Any insight or comments/suggestions would be appreciated.
Also, we were (wife and I) able to get the radiator out and back to the repair shop and get the leak fixed. Second time's a charm.!!

BobM
2005 Country Coach Inspire DaVinci 330
#51335
Post Falls, ID

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #9 – August 29, 2019, 10:45:02 am

Yahoo Message Number: 118473

Here's a recent thread I remembered from the IRV2 forum. Some good info, and wide variances in temps too:)!
Best,
Smitty
04 Allure

http://www.irv2.com/forums/f125/3000-allison-temperature-423243-3.html

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #10 – August 29, 2019, 05:14:23 pm

Yahoo Message Number: 118477

Bob, you are correct that the Sauer Danfoss Fan Drive Controller does not use transmission temperature as an input.

There are three data inputs.
1. Coolant temperature
2. Charge air temperature
3. Engine driven air conditioner high side pressure.

George in Birmingham(still in Santa Fe for the summer)
'03 Magna 6298

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #11 – August 30, 2019, 08:12:17 am

Yahoo Message Number: 118478

Lee, I also went with the Wax controller, after four or five SD controllers, and it has worked great for a few years. My engine temps stay around 183-185 and trans runs lower. I use Silvefleaf VMSpc for my numbers. My trans temps run much lower than the engine temps now. I pull some long grades and my engine temp on those gets to about 192-195.

Richard Aquino
2001 Intrigue ISL370

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #12 – August 31, 2019, 07:40:36 pm

Yahoo Message Number: 118489

I also have the wax valve installed and engine temp runs 188 to 192 and transmission temps lower. I never did replace a controller when I started having overheating problems I went with the wax valve right away.
Dave 2005 Allure #31284

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #13 – September 05, 2019, 09:11:29 pm

Yahoo Message Number: 118508

Bob
I have the same model as you, 2005 Inspire 330 and am following this thread with interest. Be sure to post out, your findings or conclusions. Thanks

toni

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #14 – September 05, 2019, 11:56:15 pm

Yahoo Message Number: 118510

Hey BobM
We are almost neighbors! I am in Liberty Lake and picked up a 2005 Inspire Siena this summer. Who did you got to look at your radiator?

Mike

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #15 – September 05, 2019, 11:59:02 pm

Yahoo Message Number: 118511

Hello. Newbie to this group with a 2005 Inspire. I find my tran temp to be pretty close to engine except when in stop and go traffic. Sounds like thats to be expected from other comments here. Can I ask what this Wax valve is? Is it something to install as a preventative maintenance?

Mike.

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #16 – September 06, 2019, 09:55:06 am

Yahoo Message Number: 118512

Hi Neighbor,
I took my radiator to Corky's Radiator1620 N Ash St Spokane, WA 99205.
Honest and very pleasant to work with. The first time he reapaired it, we installed it and it started to leak after a week. (Corky;s provides a 1 year warranty.) SO, we again removed the rad a second time and took it back to him for a warranty repair. He felt bad about the leak and started on the fix immediately. Within an hour, he had fixed the problem and pressurized the rad and placed it in a dunk tank for 15 minutes..........no leaks. I would certainly go back to him again. It's been 4 months without any issues.

This is a copper/steel rad, BTW.
If you decide to tackle your rad at any point, please feel free to message me, as I've now had ample experience. with this.

Regards,

BobM
2005 Country Coach Inspire 330 DaVinci CAT C9

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #17 – September 06, 2019, 10:21:52 am

Yahoo Message Number: 118513

Hi,
Re trans temp during stop and go, I've found that shifting into neutral whenever possible help with over temps. Also, the Allison operators manual states that idling over 5 minutes can cause overheating.
Wax valve replaces the Sauer-Danfoss fan controller and removes the SD electronics from the fan control system. It's basically a mechanical fan controller. There are several posts on this Wax valve topic on this forum.

BobM
2005 Country Coach Inspire 330 DaVinci CAT C9
Post Falls, ID

Re: Transmission Temperature in MD 3060/3066 Reply

Reply #18 – September 06, 2019, 08:44:42 pm

Yahoo Message Number: 118514

Go to Source Engineering Wax Valve this explains all about it. I had mine installed six years ago and no overheating since. Today when driving coolant was 188 to 192 and transmission was 160 to 165.
Dave 2005 Allure #31284

Transmission Temperature Situation

Reply #19 – August 29, 2019, 12:14:05 pm

Yahoo Message Number: 118474

Thanks Smitty for your Input. I too use the Shift Control Buttons a lot, & not let the Engine RPMs Lug down, minimum that I allow is 1,500 Rpm.
Especially Manual Shifting in the Mountains where I will not let the Logic use 6th (overdrive) gear, And NO Economy Mode usage.

Re: Transmission Temperature Situation

Reply #20 – August 29, 2019, 12:59:27 pm

Yahoo Message Number: 118475

Lee, what is approx cost of Trans fluid change with filter? Jt

Quote

Thanks Smitty for your Input. I too use the Shift Control Buttons a lot, & not let the Engine RPMs Lug down, minimum that I allow is 1,500 Rpm.
Especially Manual Shifting in the Mountains where I will not let the Logic use 6th (overdrive) gear, And NO Economy Mode usage.

Re: Transmission Temperature Situation

Reply #21 – August 29, 2019, 02:01:03 pm

Yahoo Message Number: 118476

We had similar problems a few years ago and Allison guys told me to "work off the back of the transmission" meaning keep the rpms up by down shifting when approaching a climb, and this helped a great deal. He also said the temperature rising to 230 + for some periods was normal. When Bob Vinson put a wax valve in the whole thing starting staying between 170 and 200 even in steep long climbs in the summer.

Michael
Inspire 51748

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