Transmission Cooler
How does adding an external cooler not add any fliud? That makes no sense to me.
Record Breaker
Joined: Oct 2007
Posts: 1,031
Likes: 0
From: Vermont
Thats why I went with the 4590 series flex-a-lite. Its a 6 pass rated for 26,000 GVW with
an electric fan attached to it. With the thermal sensor it will only come on at 180* which
should keep my tranny fluid temp right where it should be. Thats my theory and I'm stickn
to it :-)
an electric fan attached to it. With the thermal sensor it will only come on at 180* which
should keep my tranny fluid temp right where it should be. Thats my theory and I'm stickn
to it :-)
Rookie
Joined: Jan 2008
Posts: 63
Likes: 0
From: Pensacola, Fl
there is not enough fluid pulled from the tranny to require any additional fluid. And some coolers comme w/ these long plastic sticks kinda like wire ties that u push through ur radiator and slide clips on the end. then there are some that have brackets bolted to the frame.
Champion
Joined: Jan 2005
Posts: 4,268
Likes: 1
From:
Well, if by doesn't do any harm you mean it doesn't work at all, then by all means get that cooler. I have tested plate coolers of that same size, and they made absolutly no difference in trans temps. You will not damage your trans by having temps too cool, escpecially when we are only talking about 20-30 degrees below normal. If you ran with trans temps at 50 degrees all day, then ya, you might have an issue. But keeping your trans temps in the 160-180 range will not do any damage, and will help the life of your trans.
Legend
Joined: Jul 2007
Posts: 7,843
Likes: 13
From: DFW, Texas
HTM,
Are you bypassing the radiator trans fluid heat exchanger? If you aren't, I think you might have a wonky temp sensor. Even if you are even running a 180* T-stat, it should cause the exchanger to run trans temps above 100-120. Is the cooler Pre or Post-Exchanger? Also, where is your temp sensor located?
Are you bypassing the radiator trans fluid heat exchanger? If you aren't, I think you might have a wonky temp sensor. Even if you are even running a 180* T-stat, it should cause the exchanger to run trans temps above 100-120. Is the cooler Pre or Post-Exchanger? Also, where is your temp sensor located?
New Member
Joined: Nov 2009
Posts: 1
Likes: 0
From: Colleyville, TX
transmission cooling fan
My 2005 Ram; Cummins has a Goering billet transmission. Towing our 30' fifthwheel at highway speeds the tranny runs around 170 degrees. But in slow trafficor backing that sucker will get up to 220 or more if I don't take precautions.I'd like to add an electric fan to supplement the factory fan, how much fan doy’all think I'd need?
Keep the greasy side down.
Keep the greasy side down.
Registered User
Joined: Oct 2013
Posts: 9
Likes: 0
From: yukon canada
My 2005 Ram; Cummins has a Goering billet transmission. Towing our 30' fifthwheel at highway speeds the tranny runs around 170 degrees. But in slow trafficor backing that sucker will get up to 220 or more if I don't take precautions.I'd like to add an electric fan to supplement the factory fan, how much fan doy’all think I'd need?
Keep the greasy side down.
Keep the greasy side down.
How big is your cooler now? a fan that covers its entire surface is ideal. And I would put a derale in line thermostat in the transmissions cooler out line. The fan kicks in at 180f and off once the fluid reaches at 165.