Car has around 117k
I don't see any leaks from the radiator.
A few months ago I replaced the Thermostat, Flushed the coolant, Replaced upper and lower hoses.
I am almost certain I cleaned off the plastic reservoir, but I am seeing dry coolant starting from the top of the reservoir.
The volume in the reservoir has dropped.
I don't see any coolant on the ground or on the splash guard.
Other than the radiator or hoses leaking is there any where else I should check? Is the plastic reservoir knows to crack anywhere?
I drove the car around and the top and bottom hoses feel firm.
What millage did you change your radiator?
Has anyone used a pressure tester kit you can rent from advance auto for this car?

 

The small hoses are often overlooked, check them first. They are much more fragile, not internally reinforced, like the larger radiator hoses.
Coolant passes through them every time the engine heat cycles. They will inevitably fail.
Granted this failure may be slow and will not leave you stranded on the side of the road but they will fail...

 

ok thanks I will look into it
I was debating to do the radiator at 117k
I saw some ATF come out during a couple DIY Videos. Is it necessary to refill this small amount of ATF that comes out when removing the radiator?

 

Yes
Verify the level is correct after everything is buttoned back up.
If your car has a trans dipstick it's simple, if not it's a bit more involved...

 

Just following back up.
Since I replaced the radiator cap I have not had any pink spray spots. I will keep watching it. But if anyone else has something similar, just replace your radiator cap first.
thanks to all that helped.