There isn't one. The lower hose is used for a drain. Hello, whoever answered this with "there ain't one", I wonder where he got his Dodge from? As of 11/14/2005, and with 143250mi I have needed to replace the radiator only 1 time. There is a rubber bumper on the bottom of the radiator (on the passenger side) just above it is where you can find it. The only reason I had to replace it was because (on the driver side) the plastic tank had a slit on it on the top as if someone actually cut it with a scappel (hair line slit)
at the bottom of the radiator
Lower passenger side of the radiator.
It is on the lower driver side of the radiator.
Remove the lower radiator hose or loosen the radiator drain.
The 2003 Chevrolet Cavalier radiator drain petcock is located on the bottom of the radiator. The drain will be towards the right side of the radiator.
I usually pull off one end of the lower hose if the radiator petcock is hard to get at or stuck; it is usually easier and it is much faster in most cases.
Is there not a drain petcock on the bottom of the radiator?
Look at the bottom or rear or radiator or disconnect the lower radiator hose
No drain Plug Just loosen lower rad hose
Remove the plastic cover underneath the radiator(passenger side) to access the radiator drain and you will need a large screwdriver.
screw it clockwise
Radiator drain plug. Located at the bottom or lower side of the radiator used to drain coolant from the radiator.