External Transmission cooler

[gGM Fan]

On the GMT900 models with tow package you are able to see the external cooler but, the new 2015 models with the tow package you can't see it. The build sheet indicates there is one however. Would anyone know where the external trans cooler is located on the 2015i models? Thanks

 

[OR VietVet]

Is it between the radiator and the a/c condenser and just hidden? Or mounted down low somewhere?

 

[Lyon]

My understanding is that, since it's now a standard feature and not part of the HD package, it's simply built into the radiator. That may be wrong though.

 

[OR VietVet]

Like the old style you would see trans lines attaching at the radiator if that is the case. Are the lines there?

 

[Lyon]

I'll take a look and see if I can see anything when I get home. I didn't drive the Yukon to work today.

 

[Lyon]

Confirmation. These lines come out of the radiator from top and bottom on the passenger side, cross in front of the engine and then disappear under the engine headed for the transmission.

 

[Big Buttons]

On my GMT800 it has the lines going to the radiator but, it also had an external one in front of the radiator which I switched to a larger one.

 

[OR VietVet]

Yea could be oil cooler lines to the engine but if you are sure they don't stop at engine/oil filter block area and go to trans then there you are. I know it is a 2015 but damn that is clean in there.

 

[Lyon]

Honestly there are multiple small lines running out of the radiator, at least 4, in addition to the two big ones. According the the specs it's got and air to auxiliary external transmission oil cooler and I can't find anything else in the engine area that would qualify.

 

[Lyon]