Hello guys, I was wondering if there was an easy way to get to the transmission cooler lines. I see they disappear into the front toward the radiator. But I can't squeeze my head up in there to see any fittings. The one has a leaking for ever. Do I need any special tools? Oh, sorry, 2002 durango 4.7. Thanks for any advice.

 

Try removing your upper shroud to expose the passenger side connections to the radiator. If you have an external tranny cooler then one line will go to your radiator a separate line will run between the other radiator connection (upper) to your external cooler and then the final line will run from the bottom of your external cooler.

You don't need any special tools to remove the connections to your radiator. There are some o-rings used in those connectors that might need replacing. You can safely remove the connections without loosing too much fluid so long as your D is off. In the past i have plugged those connections with some cork stoppers during a radiator replacement.

 

Thank you for the advice. I was wondering what is meant by the shroud? The other problem is that I don't even see a cooler any where. But two lines (one very leaky) go up into coolant rad area. I am still confused, I don't understand why it is so hard to find specific info on this type of service in any manuals. Thanks for the help and any detailed advice, I'm just not getting it.

 

The transmission cooling lines terminate via flare nut at either the trans cooler inside the coolant radiator or a separate radiator just for trans mounted in front of the coolant radiator in the case of Durango's with the tow package. The shroud is the plastic cowling around the coolant radiator that directs the airflow from the fan through the radiator.

 

You might also try youtube for a video of changing the radiator, which would probably show you where the flare nuts will be found as they would have to be disconnected to change the radiator.

 

So you are saying that the trans fluid runs into the engine coolant radiator. wow I would have never thought that such of thing was done. Thank you, that bit of information was a huge roadblock in my research...Thank you very much for your insight ! ! ! dxloat. Dan

 

 

Inside of a automatic transmission equipped vehicle radiator there is a sectioned off portion for transmission oil cooling. It also helps to warm the transmission fluid when it is cold outside because of the heat the engine puts through.

If you have a tow package then there should be a secondary small oil cooler that the oil would flow thorough for extra aid in cooling after it is cooled in the radiator. Regardless the fluid gets pushed through and back to the transmission.