2nd trans cooler ?

[RSeymon]

Greetings one and all.



Need a little help on which line to tap into for second cooler.



Looking at the cooler, there are two lines one goes in close to drivers side other line goes in closer to passenger side of the trans cooler. Which line would I use to connect a second trans cooler in line to.



Thanks in advance

 

[cerberusiam]

Cut and splice into the line at the rear of the transmission. Thats the return line from the factory coolers. Run to your aux cooler from there then the return back into the rear trans fitting.

 

[DBF]

Greetings one and all.



Need a little help on which line to tap into for second cooler.



Looking at the cooler, there are two lines one goes in close to drivers side other line goes in closer to passenger side of the trans cooler. Which line would I use to connect a second trans cooler in line to.



Thanks in advance

Are you looking at the small cooler on top of the radiator/air conditioning condenser?



Are you aware that there is the heat exchanger between engine coolant and transmission fluid on the passenger side of the block under the turbo? That's where fluid goes first on a stock installation, then to the little cooler up front. The need for the heat exchanger is to get the trans fluid up to operating temp if it's really cold, or to take heat from the trans fluid if that is really hot.



When Dodge supplied as an option their "Superduty" cooler, they mounted it under the driver-side truck bed ahead of the wheel. It had a fan to move air thru the cooler and a thermal switch that controlled when the fan turned on. This cooler by the factory installation instructions got cut in ahead of the heat exchanger, effectively at the output of the trans - fluid ran from the front trans line to the Superduty, then to the heat exchanger, then to the cooler up front, then back to the rear connection on the trans. I have no idea why they did it this way, but they did. If you want to see the "Superduty" instructions, give me an e-mail address to send them to - it's a large file.



Lots of folks have put a similar fan-and-cooler in the same location, with some putting it in as Dodge did and others putting it last - just before the return into the trans. I guess it's a matter of preference and viewpoint on how it ought to work.



Some pictures of the Superduty and lines to it are in my pictures.



Regards, DBF

 

[RSeymon]

Are you looking at the small cooler on top of the radiator/air conditioning condenser?



Are you aware that there is the heat exchanger between engine coolant and transmission fluid on the passenger side of the block under the turbo? That's where fluid goes first on a stock installation, then to the little cooler up front. The need for the heat exchanger is to get the trans fluid up to operating temp if it's really cold, or to take heat from the trans fluid if that is really hot.



When Dodge supplied as an option their "Superduty" cooler, they mounted it under the driver-side truck bed ahead of the wheel. It had a fan to move air thru the cooler and a thermal switch that controlled when the fan turned on. This cooler by the factory installation instructions got cut in ahead of the heat exchanger, effectively at the output of the trans - fluid ran from the front trans line to the Superduty, then to the heat exchanger, then to the cooler up front, then back to the rear connection on the trans. I have no idea why they did it this way, but they did. If you want to see the "Superduty" instructions, give me an e-mail address to send them to - it's a large file.



Lots of folks have put a similar fan-and-cooler in the same location, with some putting it in as Dodge did and others putting it last - just before the return into the trans. I guess it's a matter of preference and viewpoint on how it ought to work.



Some pictures of the Superduty and lines to it are in my pictures.



Regards, DBF

Yes I was looking at the small cooler on top.



I was thinking that I could just tap in ahead of that cooler or disconnect hose from top run into new cooler out of new cooler into top of old cooler. thought I would mount new cooler to front of truck ahead of raidator.

 

[DBF]

Yes I was looking at the small cooler on top.



I was thinking that I could just tap in ahead of that cooler or disconnect hose from top run into new cooler out of new cooler into top of old cooler. thought I would mount new cooler to front of truck ahead of raidator.

If you have room for it up there, go for it. My airconditioning cooler in front of the radiator doesn't leave me enough room to do anything worthwhile up front.



Dodge uses bigger piping/hoses than Ford/Chevy; you should select components that also use the larger sizes so they don't become a point of flow restriction.



Regards, DBF