Too cool for Tranny - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-12-2012, 10:46 AM   #1
Senior Member
 
Name: Derek
Trailer: 1973 boler 13', Earlton On
Ontario
Posts: 396
Registry
Too cool for Tranny

There has been a lot of talk about the merits of a transmission cooler because it keeps the tranny fluid cooler when towing. This is fair enough advice. Many only to on an occasional basis. As a result, the transmission cooler is only needed a small percentage of the time. An engine generally runs better once it has warmed up a little. Is there any consequence in a transmission running too cool? Thoughts?

Derek
__________________

__________________
glamourpets is offline   Reply With Quote
Old 08-12-2012, 11:12 AM   #2
Senior Member
 
Name: george
Trailer: FunFinder
Missouri
Posts: 455
You bring up a good point Derek. I'm not sure about transmission temps possibly running too cool, but it is possible to have problems if engine oil runs too cool. Which is why the modern way to "control" engine oil is to pass it thru a heat exchanger that is part of the engine coolant system. That way, the oil runs in a range that is "the right" temperature, instead of too cool, or too hot.

I suppose that in very cold weather you could run a tranny too cool if you had a regular old fashioned "air" cooler plumbed in, but again, coming from me, that is just a guess.
Maybe someone with experience rebuilding auto trannies could chime in on this. I have almost zero experience with auto trans, as I have always been a manual transmission kind of purchaser.

george
__________________

__________________
gmw photos is offline   Reply With Quote
Old 08-12-2012, 12:06 PM   #3
Senior Member
 
Name: Bob Ruggles
Trailer: 2015 Escape 19 2012 Chevy Silverado
Michigan
Posts: 1,305
The service manager where we buy our vehicles told me that both our Chrysler minivan, no tow package, and our Chevy Silverado with tow package, have transmission coolers. FWIW
__________________
rgrugg is online now   Reply With Quote
Old 08-12-2012, 03:18 PM   #4
Senior Member
 
Name: Derek
Trailer: 1973 boler 13', Earlton On
Ontario
Posts: 396
Registry
Another issue that this topic brings up is the "transmission cooler bypass valve.". Any thoughts for or against one of these?
__________________
glamourpets is offline   Reply With Quote
Old 08-12-2012, 05:11 PM   #5
Senior Member
 
cpaharley2008's Avatar
 
Name: jim
Trailer: 2016 2ndGen Escape19 Prairie Schooner pulled by 2014 Dodge Ram Hemi Sport
Pennsylvania
Posts: 6,398
Registry
The cooler the better for a transmission. If you change the fluid in accordance with your manual, it will last forever.
__________________
cpaharley2008 is offline   Reply With Quote
Old 08-12-2012, 07:11 PM   #6
Senior Member
 
Name: Daniel A.
Trailer: Bigfoot 17.0 1991 dlx
British Columbia
Posts: 541
Registry
Heat is the number one killer of transmissions followed by lack of servicing.

Even putting a bypass on in my view just means one more thing to leak down the road.
__________________
Daniel A. is offline   Reply With Quote
Old 08-12-2012, 09:06 PM   #7
Senior Member
 
Name: None
Trailer: None
None
Posts: 2,730
Cold transmission oil

Quote:
Originally Posted by glamourpets View Post
Another issue that this topic brings up is the "transmission cooler bypass valve.". Any thoughts for or against one of these?
When I lived in northern Minnesota ,the morning temperature would reach -50 Deg F (70 below windchill) .The automatic transmission fluid would thicken up and you could put the car in drive , give it some gas and it would just sit there for what seemed a lifetime then finally move. We would then drive 4 or 5 miles in first gear (D1) until the fluid warmed up enough so the transmission would shift. I was told the bypass valve was to help bring the transmission up to proper temperature faster. Another trick was to tie the gas line to the heater hose and insulate around both lines so the fuel was warmer when it reached the carb. I am not an automotive engineer , I just know it worked
__________________

__________________
steve dunham 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
Cool Stuff for the Cool Camper brian m. Commercial Posts and Products 64 01-26-2015 11:08 AM
This is VERY cool Kevin K General Chat 3 01-09-2010 10:14 AM
Not a FG, but OH SO COOL! V'sGlassSleeper General Chat 10 08-27-2007 10:44 PM
The Burro and the bad tranny Myron Leski General Chat 31 08-24-2006 12:46 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:18 PM.


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