Radiator replacement

Hello my name is Dave.

The best place to start is to test the cooling system for a leak. Here is a link to our tutorial on testing your system for a leak:

https://www.2carpros.com/articles/radiator-pressure-test

And while there is red coolant if your car is an automatic there is a chance that that's not coolant you are seeing but more likely transmission fluid. On your car the transmission cooler is part of the radiator and as a rule if there is a hole in the cooler transmission fluid will get into the coolant. Sometimes coolant will get into the transmission fluid also so if you can look at the transmission fluid and see if it looks pink that would confirm that that is your issue. If that is the case I would highly recommend having the transmission flushed after replacing the radiator.

If you can perform the test and check the transmission fluid for contamination and let us know the results we can help you determine your next step. We look forward to finding out what you find and thank you for using 2CarPros!

Just a quick follow up, here is the type of coolant and capacity:

Use Mopar Antifreeze/Coolant 5 Year/100,000 Mile Formula or an equivalent Extended Life Coolant with the Hybrid Organic Additive Technology (HOAT) inhibitor system.
Capacities

Cooling System Capacity. 6.5 qts (6.2 L)