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Old Mar 20, 2003 | 11:10 AM
  #1  
chado's Avatar
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Tranny Cooler

Where is a transmission cooler located and what does it look like?

I dont think I have one but I want to be sure, I have to replace my transmission lines because they are rotted and I was told they would blow out if they tried to flush the system. My friend steve told me that I should add a tranny cooler while doing this (and he was in a suit at the time so I didn't ask him to come over and crawl around under my truck).

So what do they look like.

If I dont have one (as I doubt I do) how much are they and how hard to install?


I've got a 302 w/ c6

CK
 
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Old Mar 20, 2003 | 11:22 AM
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Tranny Cooler

...they are usually mounted in front of the radiator, they look like a "little miniture radiator"...
 
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Old Mar 20, 2003 | 11:22 AM
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Tranny Cooler

the Tranny cooler will be usually in front of the rad and will look almost like a "mini radiator". just follow the lines from the transmision and see where they go. I think Having a tranny cooler is a very good idea if you are hauling heavy loads. but If it is a street truck then it may not make much of a difference.

But I wont hurt to have one and they dont cost that much maybe 40-50 dollars Cdn or about $30 U.S. depending on what type and size.


Joey
 
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Old Mar 20, 2003 | 11:29 AM
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Tranny Cooler

Ok well from what you guys said I dont have one.

But as for the street truck thing thats the funny thing.

My truck doesn't get used every day. But when it does it could range from carying my mountain bike to the trailer (thats a good 27LBS load) to in the near future (when we move) pulling a car trailer every time my car dies and hopefully *a* car to the track.

But like I've mentioned in other posts.

Project truck at this point, gas is to much to even try driving it to work every day.

So any recommendations on what size I should get or what not? I'm going to be getting rid of this 302 and putting in a 351W (I beleive thats the one that will drop right in and use the same crap for the most part correct?)


Now that I know the price (CDN$) i just need to know what size I should get is bigger better?


TIA,
CK
 
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Old Mar 20, 2003 | 11:39 AM
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Tranny Cooler

Check the radiator for 2 small lines entering the tank on 1 side or the other. Usually the tranny cooler is built in to the radiator on factory equiped automatics.
 
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Old Mar 24, 2003 | 02:33 AM
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Tranny Cooler

bigger is better. so what ever size you can get to fit in front of your radiator get it. i dont even use the factory one. because it only cools the trany to what ever the engine coolant is. which in my truck is about 200*. and in the summer time here in AZ. sometimes hotter.

Paul
 
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Old Mar 24, 2003 | 08:55 AM
  #7  
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Tranny Cooler

Thats what I needed thanks.

CK
 
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Old Mar 24, 2003 | 09:10 AM
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Tranny Cooler

when installing a tranny cooler, route the fluid through the rad cooler out into the extra cooler and then back into the tranny.

buy a stacked plate design, available at UAP, so that it only cools the fluid once it has reached operating temperature.

The unit will have mountingn instructions badly written in severeal different languages
 
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Old Mar 24, 2003 | 09:39 AM
  #9  
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Tranny Cooler

The ones I was looking at at Canadian Tire (I work for the company so I want my discount) came in three sizes, and they had pictures showing the smallest was for towing a jetski and the biggest for towing a 30' Camper.

What your saying is that the rad would have an internal tranny cooler and that I want to route tranny-rad-aux cooler-back to rad-tranny?

CK
 
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Old Mar 24, 2003 | 09:42 AM
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Tranny Cooler

YUP. I am pretty sure CTC carries what you need
 
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Old Mar 24, 2003 | 11:49 AM
  #11  
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Tranny Cooler

CK, I have added a photo of the tranny cooler on my 77 F150.
Check the 2nd 77 set of pictures in my gallery. And as far as tranny coolers go, Bigger is always better. The cooler a tranny runs, the longer it will last. Jimmy
 

Last edited by LxMan1; Mar 24, 2003 at 11:51 AM.
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Old Mar 24, 2003 | 02:39 PM
  #12  
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Tranny Cooler

Originally posted by chado
What your saying is that the rad would have an internal tranny cooler and that I want to route tranny-rad-aux cooler-back to rad-tranny?

CK
Yup, route it thru' the cooler in the radiator first, out of that then into the auxillary cooler, then back to the line you disconnected at the radiator which flows back to the tranny.
Hope this helps.
Greg
 
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Old Mar 24, 2003 | 02:47 PM
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Tranny Cooler

In cold weather climates you can overcool the transmission. In these areas you will need to route the oil thru the radiator last in order for the tranny to operate properly. But again this is for extreme climates but it is something to remember. There are a number of other things you can do tho including thermostatic bypass systems.
 
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Old Mar 24, 2003 | 02:50 PM
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Tranny Cooler

thats why I mentioned the stacked plate design. It ensures that the oil will only flow through the colling tubes when it is sufficiently hot, otherwise it just loops back through to the tranny.
 
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Old Mar 24, 2003 | 06:52 PM
  #15  
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Tranny Cooler

Originally posted by Torque1st
In cold weather climates you can overcool the transmission. In these areas you will need to route the oil thru the radiator last in order for the tranny to operate properly. But again this is for extreme climates but it is something to remember. There are a number of other things you can do tho including thermostatic bypass systems.
Whats extremely cold? Coldest it ever gets is -20C (don't know what that is in F)


CK

*keeping in mind I dont drive the truck A LOT in winter. In fact I dont drive it at all atm since it has no insurance on it, to many problems working them all out then I will drive again =)
 

Last edited by Torque1st; Mar 24, 2003 at 09:49 PM.
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