So I replaced all 3 radiators in my 00 Dodge Dakota 3.9 magnum. So now what do I do. Just fill the radiator with coolant and check oil and transmission fluid. When I took them appart I heard some kind gas or something releasing. I think it was my a/c cooler. Just need some guidance.

 

Yeah, engine coolant, trans cooler, and condenser for the a/c. Refill the radiator with coolant, check trans fluid level next, (fully warmed up, engine running, trans in neutral) and get the a/c recharged.