So my 2012 jk has been leaking coolant above the transmission for a month now, I got it diagnosed at the dealership and they said it was the oil cooler. I got that fixed and then it just started dumping my coolant out of the radiator over the transmission. Any thoughts on what it could be?

 

Coolant dumps on the transmission? Do you have photos of that you could share? There are several fluid lines in the radiator area and I wonder if maybe they got confused and connected the wrong line to the wrong part. But I can't see that happening without causing a lot of other problems at the same time. What I'm trying to figure out is how coolant dumping from the radiator (front of engine bay) gets to the transmission (sets under Jeep floor between driver and passenger).

 

if the coolant is coming form near the top of the engine this could be a sign of a ruptured heater core line. How long has it been since you've had the coolant flushed? At some point has anyone mixed coolants?