Coolant leak around transmission.

[thevabrowns]

I seem to have a coolant leak above my transmission. I cannot see where it is leaking but it seems to be running down both sides of the transmission. I see there is some kind of cooler next to the transmission that has water lines as well as transmission lines going into it I believe. I know it is not the main Transmission Cooler, as that is in front of the radiator. What is this thing, and has anyone experienced it leaking? Maybe just one of the hoses?
Thank You

 

[Atcer2018]

I seem to have a coolant leak above my transmission. I cannot see where it is leaking but it seems to be running down both sides of the transmission. I see there is some kind of cooler next to the transmission that has water lines as well as transmission lines going into it I believe. I know it is not the main Transmission Cooler, as that is in front of the radiator. What is this thing, and has anyone experienced it leaking? Maybe just one of the hoses?
Thank You

Two questions, are you sure it’s coolant and do you have the 3.6L V6 engine? I looked at your profile and it says 3.2L. The reason I ask these questions is a coolant or oil leak that runs down both sides of the transmission and coats the underside of the vehicle with the 3.6L Pentastar frequently has a leaking oil filter housing/cooler. That’s the thing where your oil filter goes on top of the engine.

 

[Wild one]

You have the 8 speed transmission,and it does have coolant hoses on top of the transmission,feeding coolant to the thermal management unit on the drivers side of the transmission.It's not common for them to leak,but it's also not uncommon either.They're a b!atch to get at.They're a hard line,that switches to a rubber hose at the top of the transmission.
In this pic,you can see where i looped mine together when i removed the thermal unit.Shortly after this pic,i swapped to the 6 speed molded hoses,and got rid of the coolant lines to the thermal management unit. I ended up cutting the hardlines to remove them. The looped rubber hoses originally connected to these 2 hose barbs on the thermal unit.

 

[thevabrowns]

Sorry about that. It is a 3.6L and I have changed it in my profile. Thanks for catching that.
It is definately coolant, and a good amount of it. I have a not so good video where I was trying to see where it was coming from but it shows the amount of fluid pouring out. I will see if I can post it.

 

[thevabrowns]

Wild One,
You were able to remove it, or you just connected them to keep from loosing too much coolant while replacing it? Those lines tdo look difficult to reach and I thought of bypassing it temporarily in the engine compartment. What would I watch out for if i bypassed the coolant lines, Transmission heating up? I am hot sure what that block is supposed to do....

 

[Wild one]

Wild One,
You were able to remove it, or you just connected them to keep from loosing too much coolant while replacing it? Those lines tdo look difficult to reach and I thought of bypassing it temporarily in the engine compartment. What would I watch out for if i bypassed the coolant lines, Transmission heating up? I am hot sure what that block is supposed to do....

Easier to just point you to a thread on the thermal management unit. Start reading about here.

RevMax 8 speed thermostat bypass

This pic might help a bit to ,you can see how the flow path is inside the thermostat housing. I see the hole in the bottom bore at Approx. nine O-clock which goes to the heater I believe. I see a hole just inside the upper bore at Approx. six O-clock. I believe that this is the entry point...

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