I have flushed the cooling system in my 97 with a water hose many times and it’s still pretty bad in my opinion. I want to get some chemical cooling system cleaner and run through the system but I have a new radiator I need to put in.
My dilemma is do I use the cleaner with the old radiator still installed and clean something that’s going in the trash or do I install the new radiator and then clean the system which would result in breaking all that stuff up and running it through my new radiator