Trans cooler routing

Oatmeal · Mar 11, 2006

First of all, I apologize if this has been asked here before. When installing a trans cooler how do most of you route the lines? Through the radiator cooler to trans cooler then back to trans or trans cooler to radiator then back to trans? (I want to keep the radiator cooler in the circuit to keep the trans from running too cool in winter conditions) Will pulling heat out of the fluid before it gets to the radiator cooler help to keep the motor cooler or is it better to cool it after it exits the radiator cooler on it's way back to the trans. How about two smaller coolers, one before and one after the radiator or am I bordering on ridiculous? I ran my Bronco's fluid through the cooler alone and it ran almost too cold (which isn't good for an auto trans either) during the colder months and on snow trips. So.....opinions?.........Hans

MachineMan · Mar 11, 2006

Go radiator first then cooler. If your running small tires then maybe you can exclude the radiator exchanger.

Some info.
http://www.4x4trailhunters.com/article.php?id=21

corbinafly · Mar 11, 2006

Oatmeal said:
First of all, I apologize if this has been asked here before. When installing a trans cooler how do most of you route the lines? Through the radiator cooler to trans cooler then back to trans or trans cooler to radiator then back to trans? (I want to keep the radiator cooler in the circuit to keep the trans from running too cool in winter conditions) Will pulling heat out of the fluid before it gets to the radiator cooler help to keep the motor cooler or is it better to cool it after it exits the radiator cooler on it's way back to the trans. How about two smaller coolers, one before and one after the radiator or am I bordering on ridiculous? I ran my Bronco's fluid through the cooler alone and it ran almost too cold (which isn't good for an auto trans either) during the colder months and on snow trips. So.....opinions?.........Hans

I've thought about this myself. I'm probably going to run the cooler before the radiator. It would help keep the tranny from running too cool and also help cool the motor.

Kyung

Kittrell · Mar 11, 2006

corbinafly said:
I've thought about this myself. I'm probably going to run the cooler before the radiator. It would help keep the tranny from running too cool and also help cool the motor.

Kyung

This is pointless. Either tap into the return line or bypass the radiator all together.

DaJudge · Mar 11, 2006

Put it after the Radiator. If you live in the lower 48 (or most of the populated part of Canada) the tranny running too cool is not an issue. Remember when you are wheeling you are generally going very slow. Very slow = very little air flow which in turn = heat buildup. If you are going to do the work to put the cooler on put where it can do the most good. JMO!

Glen

rockwerks · Mar 11, 2006

91 Jeep Project said:
This is pointless. Either tap into the return line or bypass the radiator all together.

I with this, I always install a stand alone unit with adjustable tstat.

Trans cooler routing

Oatmeal

NAXJA Forum User

MachineMan

NAXJA Forum User

corbinafly

"Mmmm. More please."

Kittrell

NAXJA Member

DaJudge

NAXJA Member

rockwerks

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