could be from your heater if so you can disconnect heater hoses from engine and buy plugs from super cheap auto barn etc to block flow.you will have no heater but a very cheap solution
"transmission fluid leaking from fitting below radiator cap after replacing radiator on 99 surburban
Probably your radiator fluid leaking out.
Antifreeze is green in color and is leaking from your radiator .
It is probably Radiator fluid that's leaking. if you have red radiator fluid. it looks purple when it heats up. I had this from my Toyota Sequoia when the leak went over the hot engine.
if you have an automatic transmission there should be cooling lines going to the radiator to cool the transmission fluid the lines could be leaking or the tank could be leaking
put radiator sealer in it or crack an egg in it
loose/cracked radiatior hoses
Green fluid leaking from a car is radiator fluid. "A professional certified mechanic can handle the repair or maintenance needed to fix this issue."
bad radiator cap
Find where the fluid is coming out and repair/replace it.
I had a similar problem and ended up replacing both the lines and the radiator.
You have a leaking transmission cooler, usually part of the radiator. The transmission fluid is mixing with the antifreeze turning it pink.